In the beginning, the Church ruled all the Spheres of the Apostles. But that was millennia ago, before the origins of this massive, artificial realm were forgotten. Now, drought, plague, and war afflict the Spheres that make up the world of Man, fragmenting society into antagonistic sects that carry out ruthless pogroms.

Thrust into the midst of this chaos, Thomas is forced to embark on a journey to the highest of all Spheres, Heaven. As he struggles through his chaotic, crumbling world, he witnesses cruelty and violence—and chances upon unexpected moments of courage and self-sacrifice. In this turmoil, his faith becomes doubt as he is forced to make soul-rending choices between what his faith commands him to do and what he must do to survive.

The Book of Thomas, the first volume in The One Book series, is the unflinching tale of the battle that reason and religion wage for a boy's soul.