The Traitor God by Cameron Johnston

A city threatened by unimaginable horrors must trust their most hated outcast, or lose everything, in this crushing epic fantasy debut.

After ten years on the run, dodging daemons and debt, reviled magician Edrin Walker returns home to avenge the brutal murder of his friend. Lynas had uncovered a terrible secret, something that threatened to devour the entire city. He tried to warn the Arcanum, the sorcerers who rule the city. He failed. Lynas was skinned alive and Walker felt every cut. Now nothing will stop him from finding the murderer. Magi, mortals, daemons, and even the gods – Walker will burn them all if he has to. After all, it wouldn’t be the first time he’s killed a god…