Twilight — Megan Derr

More than seventy years have passed since Neirin du Lac was banished from the dragon clans he called home. Though he misses them, he and his dragon Troyes have built a happy life with his lover Barra, and their friends Devlin and Midnight. It is a not a life he would ever trade, not even for a chance to return to the clans. Then the very last person he ever expected to see again comes begging for help: Prince Avalon Pendragon, ruler of the clans, a man Neirin once called friend, once wished to call lover. When Avalon tells him why he needs Neirin's help, it's not a request he can refuse, nor can his friends refuse to help him. But the people bold enough to steal from the clans are not to be trifled with, and in the midst of fighting for their lives Neirin also finds himself caught between the man he loves now and the man he never truly left behind...