Molly huffs out a laugh. Sherlock talking about patience is pretty funny.

"Sounds like a big undertaking," she says. "But, I'll admit, terribly interesting."

She grins right back. He knows her too well. She's going to be in heaven poking through the old things and trying to make sense of whatever organs might be in those jars. There's a lot they have in common when it comes to solving puzzles and mysteries - hers just tend to be a little more focused on the mysteries of the human body.

"Oh, I do hope there's a brain."