The Son of Light Book 1: Rebirth by Chris Parker

When it comes to family, most people would do anything. And for Nick, doing anything for family—specifically his brother—results in a struggle for sanity that will lead him to the types of places mostly confined to our nightmares. For Nick, the struggle is found in trying to keep his brother safe from the Demon Lord, Hexen while bearing the mantle of leadership; for Josh, his confinement for his own protection results in a corrosive mental and emotional instability.