Seventeen-year-old Kiva Meridan has spent the last ten years fighting for survival in the notorious death prison, Zalindov, working as the prison healer. When the Rebel Queen is captured, Kiva is charged with keeping the terminally ill woman alive long enough for her to undergo the Trial by Ordeal: a series of elemental challenges against the torments of air, fire, water, and earth, assigned to only the most dangerous of criminals.