Lies (Goone book #3), Michael Grant

Welcome back to the FAYZ! This is Book 3 in the series that Stephen King calls a ‘driving, torrential narrative’. It happens in one night: a girl who died now walks among the living, Zil and the Human Crew set fire to Perdido Beach, and amid the flames and smoke, Sam sees the figure of the boy he fears the most. As life in the FAYZ becomes more desperate, no one knows who they can trust.

The GONE series is Lord of the Flies for the 21st century. In turns breathtaking, harrowing, and utterly terrifying.