"The League's biggest threat ... is one of their own. Vixen has been a member of the Justice League of America for many years, but she's never ranked among its most powerful. Until now. A mysterious force has changed her powers, enabling her to copy the abilities of her teammates ... but draining them of their talents at the same time. And, what's worse, she's kept it all a secret from them. And now that choice has come back to haunt her. The League learns the truth and dismisses her from its ranks. And to compound the situation, the android Amazo returns to finally destroy the team whose abilities he can mirror. Against the will of her teammates, Vixen returns in an effort to save them. But with her new power surge comes a terrible revelation: the force behind them could not only destroy the League, but it may erase them from reality. Forever."--Publisher description.