Whispers Under Ground - Ben Aaronovitch

In Peter Grant's third adventure, the ethically challenged wizard apprentice detective constable is quite literally driven to the dark depths of London as he is trying to solve the murder on the son of an American senator which may involve some weird shit (e.g. Magic)...

 

I'm not too familiar with Urban Fantasy, but from what I've heard this is a nice example, as it really blends the fantasy-bits in with the more believable London. I enjoyed it for sure! It is written in such a witty style, making you laugh out loud on the train - and thus being looked at as if there was something wrong with me. It also involves quite some references! (You can never put to many in a book!). And now, all that's left is to wait till the new book is published...