We've been into steampunk lately, and this fit the bill quite nicely. Eliza Braun, field agent for the Ministry of Peculiar Occurrences, has orders to help archivist Wellington Books for the forseeable future. Itching for action, Braun urges Books to help her solve the forgotten cases, starting with the last case her ex-lover was on, the 'Rag and Bone' murders.
Much against his better judgement, Books agrees to aid Braun, and the two set off on an adventure filled with enough action and mayhem for even Braun, and enough intrigue and machinery for the inquisitive Books.
The two follow a clue left by Braun's ex (who's now in a madhouse), and before long discover a secret society that goes back generations. Along the way, they pursue and are pursued by a mysterious woman in black. They also have to hide their investigation from their superiour, who doesn't want them in the field.
Note: graphic sexual situations and mild language.
If you like this one, try: The Janus Affair by Pip Ballantine and Tee Morris; The Doomsday Vault by Stephen Harper.