The sickness destroyed everyone over the age of fourteen. All across London diseased adults are waiting hungry predators with rotten flesh & ravaged minds. Small Sam & his unlikely ally The Kid have survived. They're safe with Ed & his friends at the Tower of London but Sam is desperate to find his sister. Their search for Ella means Sam & The Kid must cross the forbidden zone. & what awaits them there is more terrifying than any of the horror they've suffered so far.. .