Prompt #1 - Beginnings.

I looked round as I waited for an answer to my ring. A pretty improvement on Montague Street – but how the devil had the man been able to afford this? Last I'd seen, his landlord was threatening eviction over a combination experiment-gone-wrong and three weeks' back-rent.

Landlady was an improvement, too, thank heaven.

Holmes was waiting in a snug sitting room for me, impatient as always.

"Finally swallowed your pride over that forgery, Lestrade?"

Insufferable amateur.

I glanced up quizzically as limping footsteps sounded above us.

"I've a fellow-lodger," self-proclaimed genius stated the obvious.

Poor innocent chap, whoever he was.