When the doors of the lift crank open, the only thing Thomas remembers is his first name. But he's not alone. He's surrounded by boys who welcome him to the Glade, a walled encampment at the centre of a bizarre and terrible stone maze ...

Luc is an orphan living in debt slavery in Gabon. Then a man calling himself Prof comes to town with a mysterious mission. When Luc tries to rob him, the man isn't angry. Instead, he offers Luc a job. Together, Luc and Prof head into the rough, dangerous jungle in order to study the elusive chimpanzees. There, Luc finally finds a new family--and must act when that family comes under attack.