Fire Dragon Blazes Through by Toshi Drake

Fire dragon shifter Reno only wanted to prove a point, but the spell he accidentally cast bound his reluctant treasure to him, and Blue’s hasty retaliation changed Reno… quite literally.
While Reno finds solace in his tower and the meticulous nature of his research as a master magic user, he is unable to undo his long-ago spell and struggles with guilt—especially when a prickly Blue drops in for his unannounced visits. But something is terribly wrong; Reno is losing his dragon scales—a life-threatening condition. Is it the stress of trying to help so many others… or is something more sinister happening in his own home? When Blue turns up, willing to put aside his animosity to help, Reno must find the courage to move past his fears and give this spark a chance.
With the sweet burst of heat between them, Reno is about to discover Blue is much more than treasure… he is Reno’s mate.