"A 'rar' file," Watson whispered, his hand hovering over the hilt of his cane. "The anarchists in the East End use them. They pack data tighter than a powder keg. If you try to open it without the right key..."
A particular of steampunk (e.g., sky pirates, clockwork horror)? More focus on the mystery or the action ? A.Study.in.Steampunk.rar
"There," Holmes said, grabbing his deerstalker and a pair of brass goggles. "The archive is open, Watson. And it leads straight to the heart of the rebellion." "A 'rar' file," Watson whispered, his hand hovering
"The extraction," Holmes corrected. He stood, his long coat sweeping the floor. "The victim’s memories weren’t just stolen. They were archived. Compressed into a format the Scotland Yard analysts can’t even recognize." If you try to open it without the right key
They stepped out into the night, two shadows against a sky lit by the orange glow of a thousand furnaces.
If you tell me more about the setting you're looking for, I can expand this further: Specific you want included?
Dr. John Watson , leaning heavily on his steam-powered prosthetic leg, limped toward the sideboard. The boiler in his thigh hissed, venting a small plume of white vapor. "The murder, Holmes? Or the evidence?"