Welcome to The Seventh Tower, a mountaintop fortress where light is the ultimately commodity and isolation from the outside world is complete. Tal lives among the Chosen people, but his position is far from secure. In a desperate attempt to save his family's name, he tries to steal a precious sunstone. He fails...and falls from the Castle -- straight into the unknown.

Milla, an Icecarl maiden, finds Tal in the wilderness. They are complete opposites. He was born in the cultured world of the castle; she in the stark world beyond the walls. Together, they must unravel the secrets of The Seventh Tower and fight to survive.