Rivers of London

Second read: Downgrading from 5 to 3 stars. Some important stuff doesn't make sense upon a second reading.

First read: Wooo, what a ride! Up late every night reading, up well past midnight last night to finish. This is my type of fantasy book: grounded in the real world with magic and/or magical beings layered on top, and British humor veined throughout. Bonus points for the historical bits.