Imprisoned, starved and left with no memories, Thalia awakens to find at the mercy of an evil cult known as the Septori. Their leader has chosen Thalia as the test subject for a torture device on untold power, designed to change and twist her into something that is neither human nor Denai. Escaping, Thalia finds an unwilling warrior to protect her and an unlikely Denai to befriend her. After finding a home at the Citadel as a servant, Thalia's worst...

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 ...