Matt Wallace is the Hugo–winning author of Rencor: Life in Grudge City, the Sin du Jour series, the Savage Rebellion series, and BUMP. He’s also penned over one hundred short stories in addition to writing for film and television. In his youth he traveled the world as a professional wrestler, unarmed combat, and self-defense instructor before retiring to write full-time. He lives in Los Angeles with his wife, Nikki.