Arcadia was once a beautiful world. Now it is a land under siege. Against the horrifying creatures known as Thanatos, there is only one known defense: Purifiers, rare humans gifted with the ability to exterminate the life-draining monsters. But Purifiers are few and the Thanatos are multiplying, so when the mysterious Nyx discovers 16-year-old Angelique, he becomes doubly committed to recruiting her for the team of Purifiers he is organizing.

Not only is Angelique a Purifier, she's the first female Purifier in recorded history. Moreover, there is an ancient prophecy Nyx is aware of: one of a woman with special powers, the "Queen's Egg," whose future will be inextricably tied to the fate of Arcadia!