Dawn of the Void Walker. Apocalypse Adventures Chronicles, #3

What happens when a soul-eating monster becomes your only hope for survival?Darian thought his biggest problem was hiding from the Inquisition. He was wrong. After three months trapped in the Void-a place where reality bends and nightmares live-Darian returns to find his city under siege. The Inquisition has arrived with one mission: eliminate every person with magical abilities. Public executions fill the streets.
Friends disappear in the night. And Darian carries the worst secret of all. Something followed him back from the Void. The Primordial Maw hungers for souls and whispers of ancient power. It should terrify him. Instead, it might be the only thing that can save everyone he loves. But power this dark comes with a price. When Darian's closest friends are captured, he faces an impossible choice: let the monster loose and risk losing his humanity, or watch the Inquisition destroy everything that matters.
With a five-year-old oracle, a fire-wielding rebel, and a shadow thief at his side, Darian must learn to master abilities that could either save his world-or consume it. The Inquisition thinks they're hunting magical criminals. They have no idea what's hunting them back.