The Insider

MARI HANNAH (ORION, £7.99)

When the body of a woman is found posed on railway tracks, it confirms the worst suspicions of Northumberland’s Murder Investigation Team – they have a serial killer in their midst. With four high-powered women already dead, the race is on for DCI David Stone and DS Frankie Oliver to find the culprit before he strikes again. But as the troubled pair plunge deeper into the investigation and realise the killer may be someone close to home, tragic events from their own pasts threaten to derail the investigation. The second novel in the Stone and Oliver series, this is a pacy, gritty and authentic read.