One

One year ago, Astin Fell grew horns and wings. One year ago, he fought the Taint, a malevolent force bent on devouring the entire universe. And, one year ago, he won.

But, it's far from over.

What he thought destroyed is back, and stronger. His oldest ally, Nemesis--Goddess of Vengeance--is trapped inside a homeless girl named Kylie. His newest ally is an untrustworthy kitsune. And, worst of all, there's a new breed of Tainted stalking the streets... one that Astin's burgeoning powers can't destroy.

The Taint is evolving. If Astin and his friends don't evolve along with it, there will be nothing left to stop them.