Daemon Heart: Siddeth

Myles Garber was having a bad week. He was broke, failing his exams, and facing eviction.. Then he picked up the wrong passenger, and his bad week turned into a fight for survival in a forest full of things that wanted to eat him.

Thrust into the realm of Verdantyre, Myles is given a choice by a violet-eyed stranger: die as a human, or live as something... else. To save a stranger's life, Myles accepts the "Gift"-a dark transformation that grants him immense power but strips away his humanity.

Now, stuck in a body he barely recognizes and soul-bound to a princess with trust issues, Myles has to navigate a world of ancient magic and political betrayal. All he wants is a way home. But the deeper he goes, the more he realizes that the monster he's becoming might be exactly what this broken world needs.