Power Girl loses control! After the terrifying events from the Nightmare Realm, Karen is reunited with Helena Wayne of the JSA after both beings were trapped for decades after going up against Eclipso last. However, with Eclipso being left in the Nightmare Realm, his presence is still felt - inside Power Girl! Witness as both heroes are pitted against each other under the binding spell of Blackbird. Blackbird has been running an illegal meta school, where those who fail are never seen again. With Power Girl going undercover, both heroines hope that Blackbird's plans can be put to a halt before completion. But what do these heroines learn about each other? What dark secrets unravel? Power Girl [Vol. 2], originally named Huntress & Power Girl [World's Finest], collects chapters 4-8 of this thrilling series leading up to the Justice Society of America and the 'Absolute Power' event.