The Lost

Teenagers keep vanishing from Piper's hometown, and the adults around her shrug it off as runaways. When one more person disappears, Piper and her best friend Hazel doubt that explanation. They decide to look into the disappearances themselves and get to the truth.

Their search works better than they intend. It leads straight to the people responsible, who take both girls captive. Piper and Hazel are locked inside a secluded property in the middle of a privately owned forest.

The building is more than a prison. It is designed so that no one leaves alive, and each room works as a test of whether the prisoners can get through it. Failing a test means being lost for good.

The book is a thriller aimed at a young adult audience, built around survival and escape. Reading it means moving from room to room with two friends, where every door raises the question of who gets out.