In the empire of the saviours, the people are forced to live in fortified towns. Their walls are guarded by an army of Heroes, whose task is to keep marauding pagans out as much as it is to keep the People inside. Several times a year, living Saints visit the towns to exact the Saviours' tithe from all those coming of age - a tithe often paid in blood. When a young boy, Jillan, unleashes pagan magicks in an accident, his whole town turns against him. He goes on the run, but what hope can there be when the Saviours and the entire Empire decide he must be caught? Jillan is initially hunted by just the soldiers of the Saint of his region, but others soon begin to hear of his increasing power and seek to use him for their own ends. Some want Jillan to join the fight against the Empire, others wish to steal his power for themselves and others still want Jillan to lead them to the Geas, the source of all life and power in the world. There are very few Jillan can trust, except for a ragtag group of outcasts. His parents threatened, his life in tatters, his beliefs shaken to the core, Jillan must decide which side he is on, and whether to fight or run.