Darkrise (The Rhenwars Saga, #3)

Some Bonds Are Meant to Be Shattered.

Darien Lauchlin betrayed his allegiance to the Rhen when he sold his soul to the God of Chaos. Now the unthinkable has occurred: war between Malikar and the Rhen looms on the horizon. As Darien prepares to lead an invasion against his former homeland, he struggles to unite a diverse people who still view him as the enemy. Darien is forced to abandon his former loyalties and confront the tragedies of his past. With the help of Azár, he embarks on a series of trials that will forge him into the Battlemage his people desperately need him to be. But will the price of becoming a weapon be the last of his humanity?