Now in paperback, this is the 5th book in the bestselling series featuring PC Peter Grant. Following on from "Moon Over Soho, Rivers Of London, Whispers Under Ground" and "Broken Homes", it sees Peter leave London and head to a small village in Herefordshire where the police are reluctant to admit that there may be a supernatural element to the disappearance of some local children.

Before becoming a bestselling author, Ben Aaronovitch was a screenwriter for Doctor Who and a bookseller at Waterstones. He now writes full time, and every book in his Rivers of London series has been a Sunday Times Top Ten bestseller. He is published in 14 languages and has sold more than 2 million copies around the world. Aaronovitch is also a trustee on the board of Cityread London and is a long-time supporter of Nigeria's premiere arts and cultural festival, The Aké Festival. He still lives in London, the city he likes to refer to as 'the capital of the world'.