On a multigenerational colony ship five hundred years off course, a lagomorph warrior must survive using only his wits and his sword. Jiao Tu has been hired to rescue a young kidnapped mousling. A tip leads him to the Below, home to the engines that keep the world in motion. His mission has hardly begun when an encounter with a monstrous being plunges him into the midst of a struggle not only for control of the Below but for the world...