Betrayed. Branded. Left to die in the Abyss.
Kael was a loyal bastard of a noble house until the kingdom he swore to protect cast him into darkness with the cursed Shadowheart Mark. Everyone expected him to die.
Instead, he awakened a forbidden system tied to an ancient power feared by gods.
Now, Kael rises from the shadows stronger, colder, and ready to burn the empire that betrayed him. With each kill, his power grows. With each choice, he loses more of his soul.
Torn between a princess who broke his heart and an assassin who would die for him, Kael must decide:
Will he be humanity’s last hope... or its final ruin?