Kiss of Danger - The Dragonfire Novels, #10

Alexander knew he had to fulfill his duty to his kind, the dragon shape shifters called the Pyr, even at the price of abandoning his new wife and young son. After he and his fellows were enchanted for centuries, then finally set free in a future long after their own time, Alexander feared he would never return to his love. Against all odds, the darkfire crystal makes his dream come true, flinging him across the centuries to the world he left behind.
Is this his chance to regain the life he lost? Has Katina waited for him? Or has the darkfire crystal sent him back in time for some mysterious purpose of its own?