The Despair Gladius. The Hollow Sword Master, #5

Kevin is dead. His soul is lost. The Mind Demon has won. Or so Malikhil believes. Trapped in the Valley of Despair - a psychic prison engineered to erase identity - Kevin's fractured spirit wanders through the archives of his own memories. He watches helplessly as Malikhil uses his body to wage war on Rowen. Every attempt to intervene only spreads his trauma like a contagion, turning the people he tries to save into weapons pointed at the people he loves.
On the surface, Carl Jackson refuses to accept his best friend's surrender. With his father Knuckle, his J-Clan brothers, and the reluctant new Sword Master Paz, Carl leads a desperate assault - not to win, but to buy Kevin the time he needs to make a single choice. Fade into oblivion. Or fight his way back to life. Kevin has spent twenty years running. He built an entire world to avoid one unbearable truth.
Now standing at the edge of non-existence, he must answer the most terrifying question he has ever faced. Am I worth saving?The answer requires him to do the one thing he has never been able to do - forgive himself. The final book. Complete the journey today. Perfect for fans of Will Wight's Cradle series and Michael J. Sullivan's Riyria Chronicles.