Riordan Cain has spent his entire life dedicated to protecting the few remaining vampires who walk the earth. In the last few years, Riordan has found himself always one step behind a rogue vampire who seems bent on eliminating the oldest and wisest vampires among them. When Riordan catches the rogue's scent once more, it leads him straight into the arms of his lifemate, Savannah. But now, Riordan has something to lose, and he must choose between saving the love of his life and saving his race. And time is running out.