"Death by biggest company known to man", Emma said while handing Mary the Apple watch. "Well, not really, but you get what I mean."

"Cant you just trace back the number?" Mary asked, trying to help.

Sherlock shook his head. "I've already tried that. Unknown number."

"Can't Lestrade somehow do something?"

"Not his division", Emma recalled how he had tried, but had been unable to. Scotland Yard can do almost everything. Just not trace untraceable phone numbers. What a shame.

"What about--"

"It's most likely from a disposable phone", Sherlock butted in. "At least that's what Scotland Yard said. I said it is from a disposable phone. Payed for by cash, name wasn't given, fake email address that was given to the store. None of the workers can say who bought it because it was stolen. Money was left on the counter, email on a printed note, no sign of forced entry."

Emma looked impressed."You've done your research."

"Of course I've done my research." You were in trouble. "I'm Sherlock Holmes."

"Yes, and", Emma put her coat on. "That's my cue to leave."

"Leave?" John looked surprised. "We just got here."

"No", Emma downed her cup of tea. "We've been here for", she looked at her phone. "About seven minutes?"

"Nine." Sherlock corrected. "Keep up."

"But you're leaving?" John asked again, still not getting it.

"It's late and I'm tired. I'll work on the code, Sherlock. Goodbye." Emma walked down the steps and out of Sherlock's flat.

"I'm glad she left." Sherlock looked completely okay with her just leaving.

"Why?" John asked.

"Lets just say I still don't trust her." He sipped his bitter tea, or just tea, and bitterly sat down. "She can't be trusted."

John still looked completely confused as Emma was already in her cab.

"Where to?" The Scottish driver spoke up. His accent was thick, must be from the north. Well, of course, in Emma's mind, it wasn't an assumption. It was a fact.

"My flat."

"And where is that?" he asked.

"Oh, sorry. I forgot. You're not my mad man. Check your front pocket." She smiled sweetly, even though she felt bitter.

"What's this?" he took a card out of his from pocket. "How'd you do that?" He looked amazed. Like a little kid seeing something new in the world. Completely and utterly, and theoretically, speechless.

"One never tells their secrets."

The man laughed and started to drive towards her flat. He drove as she tried figuring out the code.

"Sherlock, you make no sense", John exclaimed. "Why can't she be trusted?"

"I didn't mean that" Sherlock said.

John angrily sprang up from his chair, throwing his arms in the air. He opened his mouth then closed it, doing this a few times like a fish on land would, until finally sitting down.

"I only said it because she was in ear shot."

"You only said it because she was in ear shot? Ear shot?" John yelled. "Do you know how stupid that sounds?"

"Excuse him", Mary spoke up between his rants. "The baby's put him on edge." She clears her throat. "JOHN! You need to calm down and remember that I'm the pregnant one."

"You also need to remember that I only do things that have a purpose", Sherlock spoke up.

John took deep breaths, calming down and thinking. "Get her motivated to figure out the code quicker."

"Looks like John has finally been paying attention", Mary joked.

"Oh, shut up."

Emma looked up from the piece of paper with the code written on it. It was a red light so she looked in the rear view mirror, seeing the driver looking back at her. Don't be suspicious. She giggled.

"What?" the driver asked.

"Nothing just, I'm thinking of this joke my friend told me. It was hilarious."

"Go on", he said. "Tell it."

"Okay, okay, hold on..." she tried to stop giggling, hoping that it would stall. A joke... a joke...

"So, two guys are hunting, and one of them accidentally shoots the other. He doesn't know what to do, going completely mental, and he calls the police, right?" she started giggling uncontrollably as the light changed. "Sorry... sorry...." she kept laughing and after what seemed like forever, but was really only thirty seconds, she continued. "So the lady on the line says 'hello, what's the emergency?' and the man starts to explain what happened."

She changes her voice so it's one of a male. " 'My friend and I were hunting, when I shot him. I think he might be dead and don't know what to do.' " Switching back to her own voice, " 'First, you need to make sure he's dead.' The woman hears a shot go off and then the man speaks again. 'Okay, now what?' "

She started laughing uncontrollably again. "Come on, wasn't that gold?"

The driver laughed, and then focused on the road.

Emma slowly stopped laughing, trying to make it believable. Something was off with this driver.

He wasn't the only person who was off.

"Sherlock?" Mary asked.

John stopped laughing and looked at him. "Sherlock, what's wrong?"

"Did you see that?" Sherlock was standing at the window.

"See what?" John joined him there. "I don't get what you're saying."

John and Sherlock looked towards each other. John was confused while Sherlock had a look that said I'm-Sherlock-Holmes-I-Should've-Seen-It-Sooner.

"The cab. She can't get a cab that quick."