"Ooo. Someone came here tooled up." The Doctor opened the small box which was full of lock picking tools kneeling beside the Stone in the sitting room. "The sort of stuff a thief would use." He glanced at the Stone who nodded agreeing with him.

"The Unicorn." Agatha said quietly. "He's here."

"The Unicorn and the wasp." The Time Lords both said quietly glancing up as Greeves entered the room holding a tray with four drinks on it.

"Your drinks, ladies. Doctor." He held the tray out for each of them to take their drinks.

"Very good, Greeves." The Doctor nodded patting the mans back before sitting down in the chair the Stone was standing next to taking a sip of his drink.

"How about the science stuff." Donna looked at the Time Lords. "What did you find?"

"Vespiform sting." The Doctor said bringing out the test tube. "Vespiforms have got hives in the Silfrax galaxy."

"Again, you talk like Edward Lear."

"But this one for a random unknown reason this one seems to bes behaving like a character in one of your books." The Stone muttered tapping her chin.

"Come on, Agatha." Donna looked at the older woman. "What would Miss Marple do? She'd have overheard something vital by now because the murderer thinks she's just a harmless old lady."

"Clever idea. Miss Marple?" Agatha frowned. "Who writes those?"

"Er..." The red head stuttered sending the Time Lords an apologetic look, "copyright Donna Noble. Add it to the list."

"Stone." The Doctor muttered, she glanced at him before her face filled with slight worry seeing the look in his eyes. "Donna." He then added.

"Okay, we could split the copyright." She waved him off not noticing the look of horror on his face.

"No." He shook his head the Stone then took his hand looking at him even more concerned them before. "Something's inhibiting my enzymes." He said before gripping onto the arm of the left chair and the Stones hand with the other as he started to jolt around in pain. " Argh! I've been poisoned."

"Sweetheart." The Stone tried to comfort him as best as she could. "We'll fix this." She promised her own voice shaking slightly as the red head started to panic.

"What do we do?!" She looked at the Time lady who helped the Doctors head to her chest stroking his head and glancing at his drink nodding over to Agatha to smell it. "What do we do?"

"Donna panicking won't help us, we need to find out what it is." She looked at the Doctor worryingly murmuring softly, the Time Lady looked calm to any stranger but her eyes said other wise filled with deep worry.

Agatha did as instructed sniffing the drink before looking up at the Time lady. "Bitter almonds." She said. "It's cyanide. Sparkling Cyanide."

"Kitchen!" The Time Lady shouted helping the Doctor up as quickly as possible and running out the room pulling him as fast as she could over to the kitchen the Doctor almost falling face first to the floor trying to control his own body as he fought for control against the poison.

"Ginger beer!" The Doctor shouted as they ran into the room.

"I beg your pardon?" Davenport looked at the two of them as if they were mad as the Doctor gripped on to the side of a counter as the Stone started rummaging through some of the cupboards trying to find what he needed while shouting at Davenport. "He needs ginger beer!"

"The Lady and gentlemans gone mad." One of the men in the kitchen announced as the Stone found the ginger beer forced it open as quickly as possible then handed it to the Doctor who drank it as quickly as possible then tilted his head forward some of the ginger beer going down his back.

"I'm an expert in poisons." Agatha sadly told them. "Doctor, Stone, there's no cure. It's fatal."

"Not him trust me." The Stone looked at Agatha extremely serious and determined. As the Doctor spat the ginger beer remaining in his mouth back out.

"I can stimulate the inhibited enzymes into reversal." The Doctor cried out in pain again. "Protein!" He shouted. "I need protein!"

"Walnuts?" Donna asked.

"Brilliant." He threw open the jar and filled his mouth with them then began to make a violent shaking gesture with his hand. "I can't understand you!" Donna said trying to figure out what he needed.

"Doctor how many words?!" The Time Lady shouted at him. He held up his hand with one finger showing. "One. One word." Donna nodded. "Shake. Milk shake. Milk?" The Red head guessed. "Milk?" The Doctor then shook his head. "No, not milk? Shake, shake, shake." She said trying to think. "Cocktail shaker. What do you want, a Harvey Wallbanger?"

"Harvey Wallbanger?" He looked at her as she panicked loudly. "Well, I don't know!"

"How is Harvey Wallbanger one word?"

"The Time Ladys eyes widened. "Salt!" She shouted the Doctor then furiously nodded at her as Donna started to run about along with the other two woman in the kitchen.

"I was miming salt." He added continuing to cry in pain. "It's salt. I need something salty."

"What about this?" Donna asked holding up a large block in a brown bag.

"What is it?"

"Salt!" She replied.

"No, too salty."

"Oh, that's too salty." She groaned at him throwing the salt block back down as Agatha ran up to him. "What about this?."

"What's that?"

"Anchovies." Without saying another word the Doctor opened the jar threw his head back and dumped the contents into his mouth. He then started to wave his hands about again as he chewed as fast as he could.

"What is it?" Donna asked. "What else? It's a song?" She frowned. "Mammy? I don't know. Camptown Races?"

"Camptown Races?" The Doctor said after finishing with the food.

"Well, all right then, Towering Inferno." She guessed.

"Doctor what do you need?" The Time Lady asked grabbing his shoulders.

"It's a shock. Look, shock." He waved his hands about again. "I need a shock." A moment after that the Stone hit him as hard as possible over his left cheek and then did the same to his right before wincing slightly seeing two red marks start to form as the Doctor threw back his head, dark grey smoke exited his mouth. "Detox." He gasped slightly rubbing his cheeks and wiping the remaining food from his mouth as the Stone sent him apologetic looks. "I must do that more often." She raised a brow at him before he quickly held up his hands stepping back slightly. "I mean, the detox."

"Doctor, Stone you two are impossible." Agatha gasped at them looking between the two Time Lords as the Stone lightly rubbed his cheeks with both of her thumbs before the Doctor sent her a soft smile letting her know that he was okay, he then took her hand and as they both ran out of the kitchen as Agatha Christie questioned them once again. "Who are you?"

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It was now dark and the Doctor was sitting on one side of a quite long table, the Stone to his left and Donna to his right the guests on the other side with the Hosts Lady Eddison and the Colonel at either end of the table which was decorated with a couple of bowls of fruit a vase of yellow irises and a few candles, every few moments the group heard a clasp of thunder and a shine of lightning shone through the windows where it was raining outside. The next course consisting of soup was brought out only moments before the Doctor began to speak.

"A terrible day for all of us." He glanced around at the people in the room. "The Professor struck down, Miss Chandrakala taken cruelly from us, and yet we still take dinner." He raised his spoon to make his point.

"We are British, Doctor." Lady Eddison lightly defended herself and the other guests. "What else must we do?"

"And then someone tried to poison me. Any one of you had the chance to put cyanide in my drink." He glanced around the room at the guests again as they continued to enjoy their meal.

"But that then gave the Doctor and I a brilliant idea." The Stone spoke up as the Doctor nodded.

"And what would that be?" The reverend asked.

"Well, poison." The Doctor grinned the two Time Lords then lifted their spoons. "Drink up." The guests stared at them in horror as Donna almost chocked on the soup. "We've laced the soup with pepper." He informed them.

"Ah, I thought it was jolly spicy." The Colonel nodded happily drinking his soup again.

"But..." the Stone interrupted placing her spoon down, "the active ingredient of pepper is piperine,"

"Traditionally used as an insecticide." The Doctor cut in the two of them silently high fiving under the table. "So, anyone got the shivers?"

There was another crash of thunder and the windows flew open blowing out the only source of light in the room which was the candles.

"What the deuce is that?" The Colonel asked.

"Listen" the Doctor held up his hand hearing a faint buzzing the Stone tried to shush the group as well also hearing the faint noise, "listen, listen, listen."

"No, it can't be." Lady Eddison gasped as lightning lit up the room for a moment.

"Show yourself, demon." Agatha stood up

"Nobody move." The Doctor shouted as the guests started to run about seeing the wasp in the light given off by the lightning for a moment. "No, don't!" He shouted

"Stay where you are!" The Stone tried to help.

They then noticed the wasp in the room in another bolt of lightning the Doctor immediately jumping from his seat taking the Stones hand while pushing Agatha Christie with the other shouting at the group.

"Out, out, out, out, out, out!" The Stone saw Donna and gave out a quick sigh seeing her moving out the room with the Butler.

The Doctor took a sword from a panelled wall his hand still tightly connected with the Time Ladys.

"Not you, Agatha." He told her as she went to move. "You've got a long, long life to live yet."

"Well, we know the butler didn't do it." Donna glanced at Greeves standing there scared to death.

"Then who did?" He asked stepping into the Dining room once again sword in hand keeping the Stone behind him as she rolled her eyes at the protectiveness, honestly, she thought it was quite adorable that he tried to keep her safe but if he kept her safe who would keep him safe when he got into trouble?

Stepping into the room again they noticed the Colonel was laying on the floor his wheelchair over turned with the rest of the guests scattered around the room.

"My jewellery." Lady Eddison gasped a hand moving to her neck. "The Firestone, it's gone. Stolen."

"Roger." Davenport cried sounding hear broken with tears in his eyes as he noticed Roger had his face in his bowl of soup with a large knife in his back causing the guests to look in horror with Miss Redmond screaming through the hand she clasped over her mouth.

"My son." Lady Eddison cried out slowly moving over. "My child." She sobbed hugging her deceased son.

The Stone swallowed hard slightly shaking remembered the event that she witnessed only a few weeks ago at the death of Jenny, hers and the Doctors daughter. Seeing the broken look in her eyes the Doctor pulled her in for a hug allowing her to hide her face in his chest feeling it becoming slightly damp as she silently cried still hurt from the loss.

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The Doctor tightly held the Time Ladys waist keeping her beside him while she rested her head against his shoulder, her eyes slightly red and puffy from tears as they stood before the fireplace in the drawing room, the Time Lords sharing the same expressionless look on their faces staring out of the window at nothing while Agatha sat on the sofa.

Donna quietly entered the room and sat down beside Agatha quietly sighing. "That poor footman. Roger's dead and he can't even mourn him. 1926? It's more like the dark ages."

Agatha looked over at her. "Did you enquire after the necklace?"

"Lady Eddison bought it back from India. It's worth thousands." She explained.

"This thing can sting, it can fly." The Doctor hissed. "It could wipe us all out in seconds. Why is it playing this game?"

"Every murder is essentially the same," Agatha said. "They are committed because somebody wants something."

"But what does a Vespiform want?" The Stone looked up at him slightly frowning as the Doctor cupped her cheek wiping away the remains of a tear with his thumb before moving his hand away.

"Stone, stop it." Agatha hissed. "The murderer is as human as you or I."

The Doctors eyes suddenly widened as he looked over at the Stone who also was thinking exactly what he was. "You're right. Ah!" he hit his forehead with the palm of his hand. "We've been so caught up with giant wasps that we have forgotten." He looked over at Agatha. "You're the expert."

"I'm not." She protested as they sat down on the sofa opposite. "I told you. I'm just a purveyor of nonsense."

"No, no, no, no, no, no, no." The Doctor shook his head. "Because plenty of people write detective stories, but yours are the best. And why?" He asked. "Why are you so good, Agatha Christie? Because you understand. You've lived, you've fought, you've had your heart broken. You know about people. Their passions, their hope, and despair, and anger. All of those tiny, huge things that can turn the most ordinary person into a killer. Just think, Agatha. If anyone can solve this, it's you."

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A little while later the rest of the guests were all gathered in the study the Time Lords both stood in front of the fire as everyone scattered themselves around the room not quite sure why the two had asked them all to come here.

"We've called you here on this Endless Night because we have a murderer in our midst." The Doctor said his arms crossed against his chest. "And when it comes to detection, there's none finer. Ladies and gentlemen, I give you, Agatha Christie." He and the Stone both moved out the way sitting down beside the red head who was feasting on some finger food hungry after not finishing her meal earlier.

Mrs Christie stood where the Time Lords were before, in front of the fire looking between each if the guests and the Hosts. "This is A Crooked House. A house of secrets. To understand the solution, we must examine them all." She looked over at Lady Eddison before turning her head in the opposite direction. "Starting with you, Miss Redmond."

"But I'm innocent, surely?" She tried to give Agatha an innocent smile.

"You've never met these people, and these people have never met you," Agatha stated. "I think the real Robina Redmond never left London. You're impersonating her."

"How silly." She lightly scoffed. "What proof do you have?"

"You said you'd been to the toilet."

"Oh, I know this," Donna spoke up enjoying herself. "If she was really posh, she'd say loo."

Agatha then picked up the item filled with the thievery equipment. "Earlier today, Miss Noble and I found this on the lawn, right beneath your bathroom window. You must have heard that Miss Noble was searching the bedrooms, so you panicked." She said. "You ran upstairs and disposed of the evidence."

"I've never seen that thing before in my life." She denied the knowledge.

Becoming curious Lady Eddison frowned. "What's inside it?"

"The tools of your trade, Miss Redmond." She opened the box and held it up. "Or should I say, the Unicorn. You came to this house with one sole intention. To steal the Firestone."

Breaking into her natural cockney accent 'Robina' scoffed her face hardening. "Oh, all right then. It's a fair cop. Yes, I'm the bleeding Unicorn. Ever so nice to meet you, I don't think." She glared at each of them. "I took my chance in the dark and nabbed it. Go on then, you knobs. Arrest me. Sling me in jail." She tossed the necklace to the Doctor who caught it in his hand.

"So, is she the murderer?" Donna questioned.

"Don't be so thick." She hissed at Donna. "I might be a thief, but, well, I ain't no killer."

"Quite." Agatha nodded moving on with the topic. "There are darker motives at work. And in examining this household, we come to you, Colonel."

"Damn it, woman. You with your perspicacity. You've rumbled me." He stood up. Everyone raised their brows at the man Lady Eddison's eyes widened at the sight.

"Hugh, you can walk." She gasped. "But why?"

"My darling, how else could I be certain of keeping you by my side?"

"I don't understand." She frowned.

"You're still a beautiful woman, Clemency. Sooner or later some chap will turn your head. I couldn't bear that. Staying in the chair was the only way I could be certain of keeping you." He looked at her sadly. "Confound it, Mrs Christie, how did you discover the truth?"

"Er..." She looked at him slightly shocked herself, "actually I had no idea. I was just going to say you're completely innocent."

"Oh." He blinked. "Oh."

"Sorry."

"Well." He muttered. "Well, shall I sit down then?"

"I think you better had." She muttered.

The Doctor glanced over at the Stone who shook her head. "Don't even think about it." She joked shaking her head as he grinned at her.

"So he's not the murderer." Donna pointed at the Colonel.

"Indeed, not. To find the truth, let's return to this." She held up the firestone the Doctor had handed her earlier. "Far more than the Unicorn's object of desire. The Firestone has quite a history. Lady Eddison." She looked over at the woman.

"I've done nothing." She protested.

"You brought it back from India, did you not?" Agatha asked. "Before you met the Colonel. You came home with malaria, and confined yourself to this house for six months, in a room that has been kept locked ever since, which I rather think means..."

"Stop, please." She begged.

"I'm so sorry." Agatha looked at her apologise written all over her face. "But you had fallen pregnant in India. Unmarried and ashamed, you hurried back to England with your confidante, a young maid later to become housekeeper. Miss Chandrakala."

"Clemency, is this true?" The Colonel looked at her sadly.

"My poor baby. I had to give him away. The shame of it." She looked down ashamed.

"But you never said a word."

"I had no choice." She looked at him her eyes slightly glassy as she held back tears. "Imagine the scandal. The family name. I'm British. I carry on."

"And it was no ordinary pregnancy." The Stone spoke up sadly looking at Lady Eddison.

"How can you know that?"

"Excuse us, Agatha, this is our territory." The Doctor gestured to himself and the Stone. "But when you heard that buzzing sound in the dining room, you said, 'it can't be.'" He looked over at her. "Why did you say that?"

The older woman looked over at Mrs Christie. "You'd never believe it."

"The Doctor and the Stone have opened my mind... to believe many things."

Taking a deep breath the woman began to explain. "It was forty years ago, in the heat of Delhi, late one night. I was alone, and that's when I saw it. A dazzling light in the sky." She took a drink of her tea then placed it back down to continue. "The next day, he came to the house. Christopher, the most handsome man I'd ever seen. Our love blazed like a wildfire. I held nothing back." She looked down slightly ashamed again. "And in return he showed me the incredible truth about himself. He'd made himself human, to learn about us. This was his true shape." She said meaning the wasp. "I loved him so much, it didn't matter. But he was stolen from me. 1885, the year of the great monsoon. The river Jumna rose up and broke its banks. He was Taken At The Flood. But Christopher left me a parting gift. A jewel like no other. I wore it always. Part of me never forgot. I kept it close, always." She swallowed thickly trying not to cry.

"Just like a man." 'Robina' scoffed earning a glare from the Stone, Lady Eddison was heart broken from being reminded of the events as well as her son dying earlier that day. "Flashes his family jewels and you end up with a bun in the oven." She continued not seeing the warning look the Time Lady was giving her only until she finished.

"A poor little child. Forty years ago, Miss Chandrakala took that newborn babe to an orphanage." Agatha continued on. "But Professor Peach worked it out. He found the birth certificate."

"Oh," Donna nodded understanding, "that's maiden. Maiden name."

"Precisely." Agatha nodded.

"So she killed him?" Donna frowned.

"I did not." Lady Eddison looked at the red head horrified her voice raising.

"I think Donna is enjoying this." The Stone murmured to the Doctor chuckling at how much the red head looked like she was watching a murder mystery show on TV.

"Miss Chandrakala feared that the Professor had unearthed your secret." Agatha continued. "She was coming to warn you."

"So she killed her," Donna spoke up again excitedly.

"I did not." Lady Eddison raised her voice again.

"Lady Eddison is innocent." Agatha nodded the woman gave out a breath of relief. "Because at this point, Doctor..."

"Thank you." He nodded standing up. "At this point, when we consider the lies and the secrets, and the key to these events, then we have to consider it was you... Donna Noble." He pointed at her. The red head frowned not understanding as she spoke through the food in her mouth. "What? Who did I kill?"

"No Donna." The Stone shook her head. "Your innocent but you said it all along." She explained. "The vital clue. This whole thing is being acted out like a murder mystery, which means..." She glanced over at the Doctor who clearly wasn't listening at all, staring out watching the rain. "Doctor?" He blinked for a moment. "You do pick the best times to not pay attention to me." She rolled her eyes. "I was saying that Donna said it was like a murder mystery, which means..."

"It was you," the Doctor pointed. "Agatha Christie."

"Smooth sweetheart." The Time Lady shook her head as he flashed her a quick smile.

"I beg your pardon, sir?" Agatha looked at them both appalled.

"So she killed them?"

"No." The Doctor shook his head at the confused red head. "But she wrote. She wrote those brilliant, clever books. And who's her greatest admirer? The Moving Finger points at you, Lady Eddison."

"Don't. Leave me alone." She pleaded.

"Doctor, hasn't she been through enough?" The Stone looked at him raising her brows knowing exactly what the woman was going through.

"So she did kill them," Donna added as the Doctor sent an apologetics look to both the Stone and Lady Eddison.

"No." He shook his head at the human woman then turned to Lady Eddison who looked quite distressed. "But just think. Last Thursday night, what were you doing?"

"I was," she thought back for a moment. "I was in the library. I was reading my favourite Agatha Christie, thinking about her plots, and how clever she must be." She then stopped looking at him. "How is that relevant?"

"Just think." He turned to the reverend. "What else happened on Thursday night?"

"I'm sorry?" He looked at the Doctor offendedly.

"You said on the lawn, this afternoon. Last Thursday night, those boys broke into your church."

"That's correct." He nodded. "They did. I discovered the two of them. Thieves in the night. I was most perturbed. But I apprehended them."

"Really?" The Doctor raised a brow. "A man of God against two strong lads? A man in his forties? Or, should I say... forty years old, exactly?"

"Oh, my God." Lady Eddisons eyes widened as the Doctor looked over at her. "Lady Eddison, your child, how old would he be now?"

"Forty." She nodded. "He's forty."

The Doctor looked at her his voice soft and calm. "Your child has come home."

"Oh, this is poppycock." The reverend scoffed not believing it slightly smiling at what he was hearing.

"Oh? You said you were taught by the Christian Fathers," he raised a brow at the man, "meaning you were raised in an orphanage."

"My son. Can it be?" Lady Eddison murmured staring at the reverend.

"You found those thieves, Reverend, and you got angry. A proper, deep anger, for the first time in your life, and it broke the genetic lock. You changed. You realised your inheritance. After all these years, you knew who you were. Oh, and then it all kicks off because this isn't just a jewel. It's a Vespiform telepathic recorder." He held up the firestone. "It's part of you, your brain, your very essence. And when you activated, so did the Firestone. It beamed your full identity directly into your mind. And, at the same time, it absorbed the works of Agatha Christie directly from Lady Eddison. It all became part of you. The mechanics of those novels formed a template in your brain. You've killed, in this pattern, because that's what you think the world is. It turns out, we are in the middle of a murder mystery. One of yours, Dame Agatha."

"Doctor." The Time Lady hissed fighting the urge to whack him upside the back of the head for letting that slip.

"Dame?" Agatha looked at him confused.

"Oh. Sorry, not yet." He apologised then gave the Stone an apologetic look as she shook her head narrowing her eyes at him slightly.

"So he killed them, yes?" Donna asked. "Definitely?"

"Yes." The Doctor and the Stone replied.

"Well, this has certainly been a most entertaining evening. Really, you can't believe any of this surely, Lady Edizzon."

"Lady who?" The Doctor said slightly leaning forward.

"Lady Edizzzzon."

"Little bit of buzzing there, Vicar." He raised his brows.

"Don't make me angry." He warned standing up.

"Why?" The Doctor asked. "What happens then?"

"Damn it, you humanzz," he started to violently shake his head, "worshipping your tribal sky godzzzz. I am so much more. That night, the universe exploded in my mind. I wanted to take what wazzz mine." He then snapped his head in the direction of Agatha. "And you, Agatha Christie, with your railway station bookstall romancezz, what'z to stop me killing you?"

"Oh, my dear God." Lady Eddison cried. "My child."

"What'zz to stop me killing you all?" He laughed then transformed into the wasp after a purple glow lit up the room.

"Forgive me." Lady Eddison went to go to him before the colonel pulled her back. "No, no, Clemency, come back." He comforted her. "Keep away. Keep away, my darling."

"No." Agatha Christie stood up holding the firestone. "No more murder. If my imagination made you kill, then my imagination will find a way to stop you, foul creature." She then ran out of the room with the firestone, the Doctor, the Stone and Donna followed behind her.

They followed her out running through the corridor Donna glancing over her shoulder seeing the wasp behind them.

"Wait, now it's chasing us." She groaned.

"Technically it's chasing Agatha." The Time Lady corrected her as they shut the main doors and heard a car horn sound causing the three of them to spin round and run before the wasp burst through the doors.

"Over here!" Agatha shouted. "Come and get me, Reverend!"

"Agatha, what are you doing?" The Doctor shouted at her.

"If I started this, Doctor, then I must stop it." She replied before driving off. The Wasp hesitated for a moment thinking about whether to follow the Time Lords and red head or the older blonde woman before deciding to follow her.

"Come on." The Doctor ran ahead jumping into a car the Stone getting in the other side with Donna in the back before he then began to drive off as fast as he could following Agatha down the narrow road, the Time Lords trying to figure out where she was going, glancing up every few moments at the wasp flying above.

"You said this is the night Agatha Christie loses her memory." Donna looked between them.

"Time is in flux, Donna." The Doctor said over his shoulder. "For all we know, this is the night Agatha Christie loses her life and history gets changed."

"But where's she going?" She asked as the Stone spotted a small sign as the drove past.

"The lake!" She shouted over the engine of the car. "She's heading for the lake."

"What's she doing?" The Doctor questioned as they saw Agatha stop the car jumping out before holding the firestone up standing near the lake. The Doctor stopped the car a few moments later jumping out himself at the same time the TimeLady jumped out of the other side. The two of the running up to Agatha who was shouting staring up at the wasp.

"Here I am, the honey in the trap." She said. "Come to me, Vespiform."

"She's controlling it." Donna gasped jumping out of the car herself.

"Its mind is based on her thought processes." The Doctor looked between the firestone and the older blonde.

"They're linked." The Stone explained.

"Quite so, Doctor, Stone. If I die, then this creature might die with me."

"Don't hurt her." The Doctor stood in front of Agatha the Stone standing beside him the two of them holding out their hands to stop the Vespiform. "You're not meant to be like this."

"You've got the wrong template in your mind." The Stone added.

"It's not listening to you!" Donna shouted before taking the firestone from Agatha and throwing it in the lake. A moment later the wasp following flying close to the ground, the Doctor ducked taking the Stone with him as the Vespiform flew right into the lake in the spot where the red head had thrown the firestone. There was a couple of bubbles before a small purple glow started to light up a small area where the wasp had dived lighting up the water beneath for a few moments before going out.

"How do you kill a wasp?" Donna softly asked not looking away from the water. "Drown it, just like his father."

"Donna," The Doctor looked at her sadly. "That thing couldn't help itself."

"Neither could I." She looked over at him.

"Death comes as the end, and justice is served," Agatha mumbled watching the water still bubbling a light purple.

"Murder at the Vicar's rage." The Stone raised a brow at the Doctors comment and he shrugged. "Needs a bit of work."

"When doesn't anything with you?" The Time Lady smirked.

"Hush you." He lightly shoved her shoulder with his own as she shook her head at him smiling softly the two of them linking their arms.

"Just one mystery left, Doctor, Stone. Who exactly are you?" The Doctor opened his mouth to reply. Agatha then suddenly doubled over in pain the Doctor and the Stone managed to catch the woman softly lowering her down to the ground before she hurt herself falling to the floor.

"Oh, it's the Firestone." The Doctor looked up to the lake again. "It's part of the Vespiform's mind. It's dying and it's connected to Agatha."

Agatha's body then glowed purple for a few moments before the glow dimmed into nothingness.

"He let her go." The Doctor looked between Agatha and the lake. "Right at the end, the Vespiform chose to save someone's life."

"Is she all right, though?" Donna worryingly asked looking at the older unconscious woman the two TimeLords had in their arms.

"She's fine." The TimeLady nodded her head reassuring the red head.

"The amnesia." The Doctor remembered looking at the Stone who looked up knowing what he was talking about. "Wiped her mind of everything that happened. The wasp, the murders."

"And us." Donna cut in. "She'll forget about us."

"Yeah, but we've solved another riddle." He smiled at her. "The mystery of Agatha Christie. And tomorrow morning, her car gets found by the side of a lake." He glanced at the vehicle not far away from them. "A few days later, she turns up in hotel at Harrogate with no idea of what just happened."

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The Time Lords alone with Donna watched from the TARDIS as Agatha Christie walked up the steps heading for the hotel then stopped midway and looked back slightly confused at how she arrived. Seeing the three stood there somehow remembering them she decided not to question the events and continue on.

"No one'll ever know." The Doctor watched the woman disappear,

"Lady Eddison, the Colonel, and all the staff. What about them?" Donna questioned looking between the Time Lords leaning against the TARDIS.

"Shameful story. They'd never talk of it."

"Too British." The Stone added.

"While the Unicorn does a bunk back to London town. She can never even say she was there."

"What happens to Agatha?"

"Oh, great life." The Doctor nodded. "Met another man, married again. Saw the world. Wrote and wrote and wrote."

"She never thought her books were any good, though." The Human woman sadly sighed. "And she must have spent all those years wondering."

The Doctor headed into the TARDIS with the Time Lady, Donna following behind them. "The thing is, I don't think she ever quite forgot. Great mind like that, some of the details kept bleeding through."

"All the stuff her imagination could use. Like, Miss Marple." The Time Lady nodded at Donna.

"I should have made her sign a contract." She sighed.

"And, where is it," The Doctor looked at the ground moving around the TARDIS console. "Where is it, hold on. Here we go." He opened a deck plate and brought out an old wooden chest then stepped into the gap the Time Lady sitting down next to the box crossing her legs watching him while Donna stayed standing.

The Doctor brought out a silver disk mumbling to himself. "C. That is C for Cybermen, C for Carrionites," He brought out the globe glowing green. The TimeLady took the opportunity to flick the globe something the three Carrionites were not happy with as they started to claw like they had when they were first trapped. The Doctor smirked slightly amused at the sight before he continued to search bringing out a head of Caesar. "And Christie, Agatha." He brought out an old 1957 paperback edition of Death in the Clouds with a wasp on the cover. "Look at that."

"I always wondered where that got to." The Time Lady hummed looking at the book as the Doctor showed them both holding it up. "I knew you put it somewhere but I had no idea where."

"She did remember." Donna looked at the book.

"Somewhere in the back of her mind, it all lingered." The Doctor explained then handed the book to the red head. "And that's not all. Look at the copyright page."

She did as he asked opening the book to the first page and reading aloud what it said. "Facsimile edition, published in the year... five billion!" She looked up looking between the Time Lords.

"People never stop reading them." He said. "She is the best selling novelist of all time."

"But she never knew."

"Well, no one knows how they're going to be remembered." He said. " All we can do is hope for the best."

"Maybe that's what kept her writing." The Time Lady hummed in thought.

"Same thing keeps us travelling." He smiled at the Time Lady lightly kissing her cheek. "Onwards?" He looked at them both.

"Onwards." Donna nodded the both of them then looked at the Stone.

"Do you even have to ask?" She laughed jumping up and running over to the lever the Doctor running after her as Donna followed the three of them placing their hands on top of each other than pulling down watching the time rotor move up and down.