Embers:The Path of fire Book One
Keenin is a young thief whose efforts for a better life end with him trapped in a burning building when he tries to rescue a friend. The god of death makes a deal: his life for his friend’s. But a fire elemental interrupts the deal and bestows a powerful fire magic on Keenin.
With Keenin’s new power to control fire, everyone wants him on their side. A holy knight wants to train him, an enemy army wants to capture him, fate wants to make him the hero, and the death god still wants him dead.