Jaeger needs blood. Half Vector, half human, newly coming of age, he is now drawn to human blood for the first time in his already long life. Rhiannon, a witch, has a problem with her blood - she produces too much iron to safely live. She decides on a partnership with the Vectors, but before she can approach them, she is attacked and left for dead beneath a pier. Jaeger finds her, unconscious and bleeding. Fighting against the lure of her blood, he helps her instead. His actions set them both on a course of pain, hunger, terror and love. But can he save her from himself?