Ben Aaronovitch has written for TV, his credits including Doctor Who and Casualty; his Rivers of London novels have been international bestsellers Andrew Cartmel is a novelist and screenwriter, who has worked on and the comics.

-Very well written, and well drawn- - Outright Geekery -Really enjoying this book, these characters, this creative team, and Peter Grant's London...4 out of 5- - Nerdly -Verdict: Buy it now and get addicted to this series.- - Talking Comic Books -I was impressed with how well Black Mould blends spooky, scary elements into the real-world setting of the London streets.- - CG Magazine -Get Rivers of London: Black Mould and get yourself hooked on your latest geeky addiction. Lose yourself in the Rivers of London.- - Warped Factor