Monstrum Nox (Books of Ys, #2)

When Adol Christin arrives in the historical city of Balduq, famous for its ancient fortress serving as a high security prison, he doesn't expect to get arrested at the city gate by the prison warden himself. Nor does he expect that an escape attempt would throw him into an encounter with a mysterious woman, whose magic bullets can turn a person into a Monstrum—a supernatural warrior, trapped in an eternal battle with monsters born from people's nightmares.

To break his curse, Adol must emba...