Tristan protects those he loves above all else. The fact he couldn't save his mother or sister a decade ago still sits ill with him, but he makes up for it by helping the little ones learn to control their dragons; a dragon who loses control is a danger to everyone.
Then Tristan is assigned a human female sacrifice and his life changes forever. He never expected a human to be the one who fill his heart and make him whole again, let alone give him the family he always desired. Yet once she captures his heart, Tristan will die trying to make his human happy.