Moon Over Soho by Ben Aaronovitch
Moon Over Soho is funny and dark and full of magic. This time around we've got a jazz vampire on the loose in London. And a potentially very dangerous unethical wizard.
This is the second in the series. Peter Grant is a cop/ apprentice wizard in London. He's called to the morgue where Dr. Walid wants him to note the definite vestigia about a dead man. Peter gets a clear sound of jazz sax, the kind of clue that only comes with strong magic. As Peter traces the steps of the jazz musician's life, he ends up meeting his former girlfriend, Simone, as well as his band-mates.
I don't acutally have a lot to say about this one although I thoroughly enjoyed it. Peter's a great character, although he maybe lets his heart lead him a bit too much. I loved the jazz references and the bits of London history that were thrown in. There were a few rather creepy scenes....