If the daylight doesn't kill you, the diurnal ones will. But when death is the one requirement to be transitioned into a mechanized Hybrid, why spend another night lost in the dark?

Five years ago, Bain woke up on the side of the road with no prior memories. Deadly radiation has forced the population to become nocturnal in an effort to avoid the mutilating effects of daylight. While this helped for a time, rogue groups began neglecting these practices, increasing the death rate and the need to finalize a procedure to bring the dead back to life. This controversial advancement becomes means for prosperity to President Umber as he takes over the growing city of Umber Heights.

After three years of serving as a brutal Corsair for Ailand's ruthless leader, Beckett, Bain is prompted to cut ties with his current life. He must revisit his estranged friend in his safe coastal town with the proposal to join him in Umber Heights--the only place Beckett and Umber's feud prohibits Beckett from entering. Bain and Argon struggle to get their relationship back, cautiously diving deeper into their romantic feelings while trying to balance conflicting personalities and Bain's lack of readiness to open up.

Now in Heights seemingly for good, Bain must determine if the lines of right and wrong really do gray when it comes to protecting human life over man-made creation.