According to history books, Roman Emperor Constantine has been dead for hundreds of years. However, the mysterious deaths of Constantine, Vlad Tepes and others like them are history's way of covering up an ancient conspiracy to take over the world. The gods who manipulated these men gave each of them a magical relic that, when united, would unleash the powers of the Aztec gods.Now Constantine is in New Orleans, and he's falling in love. But to claim the woman who can save his soul he has to save her life. For Helen, the guardian of an ancient Aztec stone related to the relics, is still learning -- and making mistakes. When she makes a trade with Constantine's nemesis she places herself in grave danger. Now she needs Constantine's help to save the world, and she might just lose her heart along the way.