DI Jack Lennon and DCI Serena Flanagan must join forces to investigate a series of murders reaching back decades DI Jack Lennon and DCI Serena Flanagan must join forces to investigate a series of murders reaching back decades Rea Carlisle inherits a house from an uncle she never knew - and with it a leather-bound book containing fingernails, locks of hair and a list of victims. Horrified, Rea turns to the only person she can think of- old flame DI Jack Lennon. But Lennon has his own troubles, and they only get worse when a brutal murder places him in the crosshairs of one of the force's toughest detectives- DCI Serena Flanagan. Lennon soon realises that running isn't an option, and an alliance with Flanagan is the only way to find a killer with nothing left to lose. 'A thriller writer at the top of his game' Sunday Independent 'Packs a real punch' Guardian 'Neville's best yet' Sunday Mirror 'Confirms Neville's place in the first division of crime writers' Spectator