From back of book: Even mortal, Joanna Archer was nobody's idea of a victim. But now, infused with the supernatural power to alter the battle between Shadow and Light forever, what she's become is a target. And when a toxic virus invades the valley, so do all of her allies. To find a cure that will save them, Joanna must embrace her Shadow side...even if it leads her into an all-out battle with the demons of her past.

Being mortal isn't easy. Being a superhero is even harder.

(Source: Avon)