Coils of Revenge by Kris Ruhler

Sacrifice a few for the greater good or save your loved ones? Sometimes, deciding what’s right is the greatest challenge yet.
How can Kallum ignore his visions when they show him the deaths of the people he cares about? Clinging to a thread of hope, left with no choice, he takes matters into his own hands and returns to Levitor—only to be caught and arrested.
Now, stuck in a prison cell, his fight for survival begins. Not only is he pitted against a Reaver, but the Aeternas suddenly show up and demand the city hand him over.
Kallum’s very existence becomes a life-or-death chase. But he vows to fix the aetherium, seek out his father, and escape the Aeternas.
Doing so won’t be easy.
Doubts torment him, and his thirst for blood is all-consuming.
Failure isn’t an option. Kallum must push himself and decide how far he’s willing to go.