Note: Sorry for the shorter chapters, I haven't had much time today to write. Longer chapters from now on!

John's mouth fell open.

"How do you know that?!"

Sherlock walked over and scooped up the girl, spinning her in the air. Lucy shrieked as she spun, barely missing the skull on the mantel.

"She is a genius, John. Like me." And to the giggling one, he said, "You, my dear, are smart. Do you have a mind room?"

Lucy grinned. "Oh yes! When mom doesn't want to play, I go to my head!"

John raised his eyebrows, wondering where this was going.

Sherlock looked pleased. "Then will you change your name to Gwen?"

….

"And he keeps asking her to change her name to Gwen!" the doctor exclaimed, clearly annoyed.

Molly shook her head. It was so Sherlock to ask a child that.

She peeled off her gloves, hands sweaty. She ruffled her hair and sighed.

"So how long do you have her for?"

"A month, supposedly. But Sherlock made it sound like Irene wasn't pleased with the girl, so I'm thinking longer."

"If you need anything, be sure to stop over. And if you need someone to watch her when on a case, I'd be happy to help!"

John took a deep breath. "See, that's the other thing. I think Lucy/Gwen might be coming with on a few cases. She could be a clone of Sherlock. She looked at me and knew I was a doctor!"

Molly gasped. "You mean it? That's amazing! A mind so complex at that age!"

"I know. And I don't know what to do, because he seems pretty infatuated with her too. Spun her around and everything."

His phone buzzed.

"Sherlock?"

"Yes, hi John. Where did you go off to? Gwen is having a fit."

"I'm talking with Molly. What about? What did you do to the poor girl?"

I best be getting back, he mouthed to Molly. Sounds like she's not too happy.

She gave him the thumbs up and waved goodbye. John started down the stairs.

"So you got in a fight with her about who was smarter? Jesus Sherlock! She's only 8!"

"Well, she was being sassy!" the detective exclaimed, clearly confused as to how someone could be so arrogant.

John laughed. "Sherlock, that's what it's like living with you."

There was a huff on the other line and then a sudden crash. "Gwen!"

"Sherlock!" The doctor could hear the high pitched squeal. "Look! A finger!"

The phone clicked dead. John raised his hand for a cab, and realized that this might be more interesting than he first thought.