Mo Hayder introduces Detective Jack Caffery in Birdman and he returns in The Treatment. Download both ebooks for a special low price.

Birdman

Five bodies, all young women, all ritualistically murdered and dumped near the Millennium Dome in southeast London. A post-mortem examination tells the police they're dealing with a sexual serial killer. Detective Inspector Jack Caffery knows he has only limited time before the sadistic killer strikes again.

The Treatment

In a residential neighbourhood in south London, a husband and wife are found tied up and imprisoned in their house. Their young son is missing. Detective Jack Caffery is called in to investigate. When the child's body is found, he attempts to unravel the motive and sequence of events, especially when he discovers that a tragedy in his own past is indirectly connected to the murder.