Betrayed by the man supposed to love and care for him, Callum watches his dreams disappear before his eyes. Only a twist of fate saves him from a life of beatings and misery, and Callum knows how lucky he is. Treated like a cherished protégé and raised to be more than he'd ever thought possible, Callum is grateful for everything his master has given him. So when that master asks him for help pursuing a worthy goal, how could Callum possibly refuse? How far will Callum go to repay the man who's given him everything?