After the death of a mysterious patient, night nurse Nico Reyes inherits something impossible. For over a thousand years, the dying woman carried an ancient fox spirit that passed from life to life, absorbing memories, power, and the souls of those who came before. Now the spirit lives inside Nico—along with eight centuries of voices that are not his own. But the transformation has done something no fox spirit has ever achieved. Nico is still human. As the hidden world begins to notice him, ancient predators and immortal councils move to control—or destroy—what he has become. Because if Nico succeeds, the system that has quietly fed on humanity for millennia may finally break. And the beings who built it will do anything to survive. Refusing to accept a world where innocent lives are the price of balance, Nico chooses a different path: one that could change the hidden world forever. If it doesn’t kill him first. CHAINBOUND is a literary urban fantasy novel about legacy, hidden worlds, and the burden of carrying many lives within one soul. For readers of Neil Gaiman, Nghi Vo, The Fox Wife, and American Gods.