When everyone's a vicious beast, it's hard to spot the monsters ... The first book in S. J. Wills' blockbuster teen horror series, perfect for fans of Stranger Things, Fear Street and Skulduggery Pleasant.

Sel Archer lives in a normal town with normal residents, except for one night a month ... When the full moon comes out, almost all of the adults turn into werewolves, and it's up to the young people to protect themselves from danger.

But, as this quiet life begins to unravel, and the Turned start to escape, can Sel and his friends uncover exactly who – or what – is watching their every move, before it's too late?