Naasir is the most feral of the powerful group of vampires and angels known as the Seven, his loyalty pledged to the Archangel Raphael. When rumors surface of a plot to murder the former Archangel of Persia, now lost in the Sleep of the Ancients, Naasir is dispatched to find him. For only he possesses the tracking skills required, those more common to predatory animals than to man.