A nameless knight comes back home from war, but he is no longer the same man.
Maybe he’s not even a man anymore.
His soul and body have been claimed to stop the decline of the world, whose balance based on the twelve elements is corrupted by the creation of a thirteenth element: witchcraft.
The Twelve Priors are dying, while a new order spreads in the form of a disease that drives men crazy and turns women into bloodthirsty monsters.
To fight this dark tide, a hero is forced to rise; neither alive nor dead, neither man nor god, inquisitor and executioner, feared by mortals and hated by immortals. Aided by Vesper, a shapeshifting cat, and Averil, a one-eyed seer, the dark Prior hunts down ancestral anointers, vampires and demons, while the kingdoms of Espero continue to make war one against the other for dominance over a world on the road to ruin.
In the darkest hour, Valka, a fallen queen, finds the courage to face her destiny and embrace the cause of the dark Prior, but sorcery now walks in the world in disguise, sowing fire and horror. The hopes of the future are threatened by the secrets of the past, because the red thread that separates good and evil is intertwined with blood ties.