The covens are at war. They wage a deadly battle over one small relic, an artifact of immense power shaped by the most powerful witch in history. Seeing the artifact in a vision and desperate to find it before his ancient dark enemies, Marcus Croft moves his coven to San Francisco to continue the search. But the battle follows them there and the whole coven is pulled into the conflict including Marcus' adopted son Aidan. Born both a witch and a vampire, he is the coven's most powerful warrior destroying any of the dark witches or their vampire servants he finds. Sworn to protect humans, Aidan is torn between his indifference to them and his guilt over killing his own kind; lost to anything but the thrill of the hunt. All of this changes when he meets Tess, a young college student. As their relationship grows, Aidan finds that his undeveloped powers of witchcraft begin to manifest. But events spin out of control when Tess is almost killed by an agent of the dark coven. To save her, Aidan must reveal his true nature. As the attacks increase, he and Tess find themselves caught up in a desperate search across two continents for the elusive artifact. Guided by a spell bound set of clues, they must pass a deadly series of tests to prove they are worthy of the artifact. The two covens collide in a final battle and Aidan discovers he must make a terrible decision that could destroy them both.