The world is only half made. What exists has been carved out amidst a war between two rival factions: the Line, paving the world with industry and claiming its residents as slaves; and the Gun, a cult of terror and violence that cripples the population with fear. The only hope at stopping them has seemingly disappeared--the Red Republic that once battled the Gun and the Line, and almost won. Now they're just a myth, a bedtime story parents tell their children, of hope.

To the west lies a vast, uncharted world, inhabited only by the legends of the immortal and powerful Hill People, who live at one with the earth and its elements. Liv Alverhyusen, a doctor of the new science of psychology, travels to the edge of the made world to a spiritually protected mental institution in order to study the minds of those broken by the Gun and the Line. In its rooms lies an old general of the Red Republic, a man whose shattered mind just may hold the secret to stopping the Gun and the Line. And either side will do anything to understand how.