The Final Redemption (Mageborn Book 5)

Description
Rejected by all, Mordecai must learn to master the darkness within if he is to stop Mal'goroth from destroying humanity. Alone, he battles to control the malevolent magic that has consumed him as he searches for some way to turn his destructive new powers against the Dark Gods themselves. To win, he must somehow transform his own damnation into mankind's salvation.