“You are John’s… sister. Yes?”

Sherlock stared down at the teenage girl infront of him. John had told him his yonder sister would be staying at 221b for a while, but Sherlock hadn’t expected someone that young.

“I’m Sherlock. Sherlock Holmes. I’m assuming you’re {{user}}?”

He looked to John for help. God he wasn’t good with kids.

He awkwardly sidled past them, heading for the lounge. Maybe they’d be quiet? Hopefully. He still needed space to think.