"I said give it to me!" Libby roared, swinging at the demon. He ducked, dodging her punch and lunging for her torso. The force brought both Libby and the demon to the ground, the pair now wrestling on the ground. Libby managed to get on top of him, pinning his arms down next to his head. "Ever since I met you I've hated you," she hissed. The demon just smirked.

"That's not nice, sweetie," he taunted before headbutting her. Libby rolled off of the demon. As he got up she swung her legs out behind him and knocked him in the back of the knees, the demon falling next to Libby with a grunt. Libby shot up from the floor, stepping on his back and letting the heel of her boots dig into his skin.

"Where's the sword?" she demanded.

"What sword?" the demon yelled. Libby scowled at him.

"You know what I'm talking about. The Sword of Elizabeth, where is it?" Libby shouted as she whipped her blade out of her boot and pressed it against the back of the demon's neck. The demon didn't reply. "I know you have it. I promise I'll spare your life if you give it to me. It's not you I want dead," she assured the demon. He let out a defeated sigh, pointing to a locked closet. Libby grabbed the demon by the back of his shirt, yanking him off of the ground, before dragging him next to her towards the closet. She shoved the demon towards the keypad roughly. "Open it," she ordered. The demon typed in a code before the door beeped. Libby looked up for any traps, satisfied when she didn't see any. The demon pulled open the door and gestured for Libby to go in first.

"Ladies first," he told her. She shook her head, grabbing the collar of his shirt again.

"I wasn't born yesterday," Libby sneered before tugging the demon in with her. She glanced around the closet-converted-into-safe before her eyes landed on an ancient box, Enochian symbols carved into it.

"No one can seem to open it," the demon informed Libby. Libby nodded, running her fingers across the rim of the box. She heard a click before the lid popped up. "How'd you do that?" the demon asked with wide eyes. Libby let him go, pushing him away from her, before picking up the sword gently. It had been millenniums since she had seen the sword. She felt the power radiating off of it and into her, a smirk curling onto her lips as she gripped the handle of the sword.

"Let's test it out," Libby said before spinning around and driving the blade through the demon's chest. The inside of his body glowed a bright purple and his skin started to disintegrate before he fell to the ground as a pile of ash. She grinned. The Winchesters were definitely going to win this war.

24 Hours Earlier...

"So there's no way to kill Lucifer?" Sam asked as Libby paced the length of the motel room. Libby shook her head, biting her thumbnail.

"Come on, man. There's gotta be something. There is always a magical weapon that can kill someone. Libby, are you sure?" Dean asked. Libby rolled her eyes, nodding. "Stop pacing. You're giving me a headache." Libby stopped, shooting a glare at Dean.

"Does your buddy Meg know anything?" Sam questioned. Libby just raised an eyebrow at Sam.

"My buddy? She is most definitely not my buddy. She's a demon, Sam. Who is stupid enough to trust a dem-" Libby cut herself off, remembering the story Sam and Dean had told her about Ruby. Sam looked down at the table guiltily. "Sorry. I didn't mean to-"

"It's alright. I get it. I was stupid," Sam replied. Dean scoffed, shaking his head.

"That's the understatement of the year," Dean grumbled. Sam frowned and Libby whacked Dean upside the back of his head. "Ow! Bitch!"

"One; be nice to Sam. Two; don't call me that." Libby let out a frustrated sigh. "And you're right, Dean, there's always something out there that can kill something. Hell, I think there's something out there that could probably kill God." Dean's ears perked up and Libby glared at him. "No, we're not killing God." Dean rolled his eyes.

"You're no fun," he whined. Sam just chuckled, watching his brother with an amused smile. "So what can kill you?" Libby shrugged.

"Don't know where it is. I lost it ages ago. I think I was sixteen the last time I saw it. It's probably destroyed by now." Sam furrowed his eyebrows in thought.

"What's it called? I can Google it and see if anything comes up," Sam told her. Libby nodded, then stopped.

"Wait. What's a Google?" Dean groaned and Sam just stared at her with an 'are you serious' look. "What?"

"It's part of the Internet. Now what's it called?" Sam asked, getting impatient. Libby nodded.

"Right, right. The Sword of Elizabeth." Sam's fingers managed to type those four words in just a few second before hitting enter, watching Google load everything that existed on the weapon. "It has a crystal blue gem on the pommel," Libby explained. Sam nodded, his eyes skimming over a website about the sword.

"Says here it was last seen in nineteen fifty eight," Sam told her. Libby furrowed her eyebrows, shaking her head.

"No, that can't be true. It was destroyed. I would know because I'm the one who destroyed it. Move." Libby shoved Sam out of the way and started to read the page before clicking on another one. After reading through six pages, they all said the same thing; it was last pawned in nineteen fifty eight in Kripke's Hollow. Dean clapped his hands together making Libby jump slightly.

"Cool. So we know that the sword wasn't destroyed and where it is, but tell me again why we want it?" Dean asked. Libby looked up at the oldest Winchester, rolling her eyes at him. "You, missy, need to stop with the attitude."

"When you stop with the alcohol," Libby retorted. "And we need it because if the demons or angels get their hands on it then we're all dead, not just me. If that sword falls into the wrong hands then the whole world is screwed."

"Why would God even create it? Weren't you meant to be pure?" Sam questioned. Libby bit her lip. "You're hiding something."

"What? No I'm not," Libby lied. Sam nodded, standing up.

"Yes you are. You're doing that thing where you bite your lower lip whenever you lie. What aren't you telling us?"

"Oh, would you look at that? Satan's daughter is lying to us. Again. Shocker," Dean exclaimed sarcastically. Libby picked up the closest object, a baseball, and chucked it at Dean. It hit him in the gut, making Dean crouch over in pain, the wind knocked out of him. "Oh, you little bitch," Dean wheezed. Libby just smirked at him.

"I wasn't meant to be pure. I was meant to be a warrior. To fight along my father and his brothers. As you can see, that didn't exactly work out. So when I was given the sword I destroyed it. Or at least I thought I did," Libby explained to the boys. "If that sword falls in the wrong hands then we don't have to worry about the Apocalypse because there won't be a world for it to happen on." Sam and Dean exchanged glances, Dean still rubbing his stomach where the baseball hit him.

"How far away is Kripke's Hollow?" Dean asked.

"About a day's drive," Sam replied, already packing up his stuff. "We gotta get moving. Libby's our only chance at winning this for now." Libby bit down on her tongue to keep herself from objecting to Sam's statement.

"We only know this sword can kill Libby. What other powerful creature can it kill?" Dean inquired, shoving his clothes into his duffel bag rather messily. Libby gulped.

"Anything I want it to."

"So you and this sword have like a psychic connection?" Dean asked, glancing at Libby in the rearview mirror as they sped down the highway. Libby nodded her head to the side.

"If you want to call it that, sure. I can control what it does. Say I stab someone but don't want to kill them, then the sword doesn't kill them. It can make them appear dead," Libby told the Winchesters. Sam nodded in understanding.

"So you can make it create illusions."

"Exactly," Libby confirmed. Sam nodded. "Which would come in handy if I were a warrior. The power is in the crystal." Dean grunted.

"Of course it's in the crystal. It's always in the magic gem," he grumbled. Libby chuckled. "So what's so special about the crystal that gives it the power to kill anything you want it to?"

"Well, this crystal was one of the first things ever created by God. It's from one of the other worlds he had created before it was destroyed. He somehow kept it safe in Heaven. When I was born he created a blood link between the sword and I. The crystal has my blood in it," Libby said. She felt like she was giving the boys a history lesson. Sam and Dean took a few minutes to process everything Libby had just explained. The power came from a crystal from another world and was filled with Libby's blood. "I don't know if it can kill my father, but there's a good chance it can. There are only two things it can't kill, and we don't have to worry about one of them."

"Okay, so this is the ultimate weapon that can win the war?" Dean asked. Libby nodded. "Then why does everyone want you so badly? You're supposedly the most powerful being next to God, yet this sword is the thing that can kill Lucifer himself."

"Because the sword is more powerful with me. Yes, I'm very powerful. It is true that I could destroy the world with a single snap of my fingers, but this sword can destroy the universe if I wanted it to." Sam's eyes widened. "It can only be used by me, but in the wrong hands this thing can end the world."

"How?" Sam questioned.

"If someone breaks the Crystal then we're all screwed." Dean let out a low whistle.

"That's quite the weapon God created. I wanna touch it," Dean said with a grin. Both Sam and Libby rolled their eyes at Dean, Sam looking down at his laptop and Libby glancing back down at a book in her lap. Sam had lent it to her after making her promise not to tell Dean that it was his. Libby opened up to page one of Circle of Secrets. It was directed more towards teenagers, but Sam and Libby couldn't care less. It was still a good book.

Sometime on the road, Libby had laid down across the backseat of the Impala, book in her grasp above her as she read. But now she was asleep, the book rested face down on her stomach as her chest rose up and down in a steady rhythm. Sam turned around in his seat to say something to Libby only to find her sleeping. A small smile took over his lips and he chose not to wake her, as she hadn't been getting much sleep in the past few weeks due to the stress of the Apocalypse and her father constantly trying to come in contact with her. Dean took his eyes off of the road for a moment and glanced over at his brother. "You think Libby's telling the truth about this sword?" Dean asked. Sam sighed, shrugging.

"We can only hope, right?" Sam replied. Dean nodded, his eyes focusing back on the road. "Besides, Libby's only told small lies. She wouldn't lie about something this big. Not when it can end the whole Apocalypse." Dean nodded, drumming his fingers on the steering wheel to the beat of the music echoing through the Impala.

"I think she was lying about that gas station being out of pie," Dean said. Sam just rolled his eyes.

"Dean, you gotta lay off the pie, man. I think Libby is saving your health." Dean, confused for a brief moment, shook his head.

"No, no. Not that. I think she was meeting up with someone or ran into them. She seemed pretty pissed and eager to get out of that town. You think she ran into a demon or an angel?" Dean asked. Sam just shrugged. "I mean, think about it. Libby does everything that's possible to please us, and just out of the blue she forgets everything she went in the gas station for. That's not right, Sammy. Something's up with her. Like why mention the sword now? Why not in the beginning?"

"Dean, I don't know. I really don't," Sam said honestly. Dean sighed, nodding and continuing to drum his fingers on the steering wheel.

"She likes you." Sam looked to his brother in confusion. "Libby. You seem to be her favorite. She clings to you more than me or Cas. She's always gotta be around you to protect you. It's like she's got a thing for you." Sam shrugged again, thinking about it. Dean was right, though. Libby was constantly around Sam, either needing his protection or vice versa. It was rare that she stuck to Dean. "She stayed with me when you took off only because she needed to stay on top of all things supernatural for this war. Had there not been a war, she would've followed you like a lost puppy," Dean explained.

"Dean, whatever it is, I'm sure it's temporary. Maybe it's like a puppy love crush. I don't know. I mean I wouldn't mind having a relationship." Dean stared at Sam in disbelief.

"Dude, seriously?"

"What?"

"You know we can't have that type of relationship with anyone, especially Libby. Not only is she Lucifer's daughter, but she's gonna be leaving right after this war. I highly doubt she'll stick around. Besides, if you're with her then that's just leverage for the angels and demons. They'll use you to get to her. She killed a demon to save me before she even knew us. Imagine what she would do for you if you two were together. She's a ticking time bomb, Sam," Dean scolded, his voice growing louder with each word. But Libby never woke up to hear anything that the brothers said. She was too far deep in her slumber, reliving each and every memory of Hell from the past few millenniums.

"Dean-"

"I'm serious, Sam."

"Okay," Sam gave in. Dean looked between the road and Sam, shocked that it was that easy.

"Okay? That's it? You're not gonna put up a fight or anything?" Sam shook his head. "Wow. That was easier than I thought." Dean leaned closer to the steering wheel, struggling to read the dimly lit sign. They were nearing Kripke's Hollow, Sam's nerves building up with every mile left behind them. They all knew they were walking into a fight. If Libby knew where the sword was then that meant Lucifer and Michael would, too.

It was a war between two brothers and one's child. A war that would end in blood, death, tears, and heartbreak. A war that would end in revenge. They all knew that only one would die. No one of the three would risk their life for the other. They were all on opposite sides. Michael; the archangel for Heaven. Lucifer; the fallen archangel for Hell. Libby; the hybrid for Humanity. It was a war that lives would be lost in. Innocent lives that had no idea that the supernatural even existed.

Dean pulled the Impala up to the pawn shop, cutting the engine and turning around to wake Libby. "Libby," Dean said. The redhead didn't budge. "Yo, Copper Top. Wake up," Dean said again, this time nudging her. Libby let out a gasp, her eyes flying open as she shot up. She breathed a sigh of relief when she saw it was just Dean. "You alright?" Libby nodded and set the book aside.

"Yeah, are we here?" The brothers nodded. "Great. Let's go get that damn sword and get out of here," Libby said before stepping out of the Impala. She stretched her arms and legs, letting out a yawn, before heading inside the pawn shop. The door was unlocked despite the fact that it was midnight. Libby's slowed to a stop just inside the store, glancing around and listening for any sign of life in the shop.

"What's wrong?" Dean asked.

"The door. It was unlocked," Libby whispered. Sam and Dean exchanged confused glances before the three of them stepped further into the pawn shop. "Split up and find the sword. This place isn't that big so it shouldn't take long." The brothers nodded, Sam going to the left and Dean the right while Libby headed for the back of the store. She rummaged through a few shelves and display cases before her gaze landed on a closet locked from a keypad.

"Hey, Sam," Dean said. "Check it out." Sam turned around, jumping before glaring at his brother who held up a clown. "You want it?" Dean asked with a grin. Sam shook his head, rolling his eyes at his brother's maturity. Or lack thereof. The brothers went back to searching as Libby tried a code on the door. There was a loud beep, letting Libby know that she typed in the wrong code. She scowled at it, mentally cursing out modern technology. She tried again, another loud beep echoing throughout the store. Suddenly glass shattered, the trio stopping and exchanging glances to see if it was one of them. No one had a guilty look on their face, letting them know that someone else was among them.

"Libby!" Sam hissed as she walked away to investigate it. "Libby, get back here!" Sam tried again, but Libby didn't listen. She was too focused on the sound of the heartbeat. The sound of the breathing. As the beating got louder she pulled out her knife, ready to stab anything that came across her. A snow globe dropped behind her and she spun around, the redhead swinging the blade at just air. She let out a sigh, dropping her arm to her side just as a demon came up behind her and kicked her in the back. Libby stumbled forward, catching herself on the counter before spinning around.

"Elizabeth, it's been a while," the demon greeted. Libby scowled at him.

"Amy," Libby hissed, glaring at the demon. Amy's lips curled into a smirk, a blade in his hand.

"I heard you were looking for your pretty little sword," he said. Libby nodded. "Well, that's too bad. You're not getting it."

"Last I checked it was the Sword of Elizabeth, not the Sword of Amy. I suggested you give me what I want before I get angry," Libby threatened. Amy just chuckled, his laugh cold and dark like every demon's. Libby heard the sound of chaos in the main part of the shop, signaling that Amy wasn't alone.

"I'm under strict orders not to let you near it." Libby nodded her head towards the locked closet.

"It's in there, right?" Amy shrugged, not giving up its location. "I'll take that as a yes." Before Amy could even blink, Libby flicked her wrist sending Amy into a shelf next to them. "I want my sword, Amy," Libby said as she walked towards him, the sound of her high heeled boots echoing throughout the small shop. Amy pushed himself off of the ground, the shattered glass crunching beneath his feet. Libby tossed him against the wall behind him. "And I won't ask again."

"You're not getting that sword," Amy told her, yanking a large piece of glass out of his vessel's arm. "Even if I have to die."

"I said give it to me!" Libby roared, swinging at the demon. He ducked, dodging her punch and lunging for her torso. The force brought both Libby and the demon to the ground, the pair now wrestling on the ground. Libby managed to get on top of him, pinning his arms down next to his head. "Ever since I met you I've hated you," she hissed. The demon just smirked.

"That's not nice, sweetie," he taunted before headbutting her. Libby rolled off of Amy. As he got up she swung her legs out behind him and knocked him in the back of the knees, the demon falling next to Libby with a grunt. Libby shot up from the floor, stepping on his back and letting the heel of her boots dig into his skin.

"Where's the sword?" she demanded.

"What sword?" Libby scowled at him.

"You know what I'm talking about. The Sword of Elizabeth, where is it?" Libby shouted as she whipped her blade out of her boot and pressed it against the back of the demon's neck. The demon didn't reply. "I know you have it. I promise I'll spare your life if you give it to me. It's not you I want dead," she assured the demon. He let out a defeated sigh, pointing to a locked closet. Libby grabbed the demon by the back of his shirt, yanking him off of the ground, before dragging him next to her towards the closet. She shoved the demon towards the keypad roughly. "Open it," she ordered. The demon typed in a code before the door beeped. Libby looked up for any traps, satisfied when she didn't see any. The demon pulled open the door and gestured for Libby to go in first.

"Ladies first," he told her. She shook her head, grabbing the collar of his shirt again.

"I wasn't born yesterday," Libby sneered before tugging the demon in with her. She glanced around the closet-converted-into-safe before her eyes landed on an ancient box, Enochian symbols carved into it.

"No one can seem to open it," Amy informed Libby. Libby nodded, running her fingers across the rim of the box. The symbols all glowed before she heard a click, the lid popping up. "How'd you do that?" the demon asked with wide eyes. Libby let him go, pushing him away from her, before picking up the sword gently. It had been millenniums since she had seen the sword. She felt the power radiating off of it and into her, a smirk curling onto her lips as she gripped the handle of the sword.

"Let's test it out," Libby said before spinning around and driving the blade through Amy's chest. The inside of his body glowed a bright purple and his skin started to disintegrate before he fell to the ground as a pile of ash. She grinned. The Winchesters were definitely going to win this war.

Libby walked out into the main part of the shop to see three slaughtered bodies on the ground, Sam and Dean's faces splattered with blood. They looked up the sound of Libby's entry, panting. She held up the box a bit. "I got it," she announced with a sheepish grin. Dean nodded his head towards the door, the trio leaving the shop.

"Alright, so let's see this thing," Dean said after they all climbed into the car. Libby opened the box to reveal the sword, pulling it out. The silver glistened in the faint light of the surrounding street lamps. Dean stared at it in awe, reaching out to touch it when Libby pulled it back.

"No, Dean. I don't know who exactly has touched this or what they've done to it," Libby said. "Amy said that they could never open the box, but that doesn't mean someone else hasn't." Libby pulled an old sheath from the bottom of the box, sliding the sword into it.

"Did you carry that around?" Sam questioned. Libby nodded.

"It was mostly for show. The angels wanted people to know what could happen if they rebelled. Needless to say, nobody ever rebelled that had to deal with me." Sam nodded, an impressed look on his face. Suddenly his phone buzzed and he glanced down at it.

"Who is it?" Dean asked. Sam stared at the phone in confusion, rereading the text.

"It's from Chuck. Says we need to get to the Pineview Hotel. It's urgent." Dean slammed on the gas, speeding off towards the Pineview Hotel.

"Who's Chuck?" Libby asked, putting the sword away.

"You're about to find out," Sam said with a sigh. "Can't say you'll be excited about it, though." Libby just raised an eyebrow, but didn't reply. She had a bad feeling deep down in her gut about this.