WhileontheJusticeLeague’sorbitingWatchtower,analertofdualemergenciesinGothamCitycallsBatgirlandSupergirlintoaction.Theystepintotheteleporter.Inthesamemoment,somethingattacksanddamagestheWatchtower’stech.ThetwogirlsreturntoEarth...butasonecombinedSuperHero!Astheytrytoundothemashupmishap,themergedpairalsoneedtostopTwo-Face’sdouble-troublecrimespreethat’swreakinghavoconthecity.Canthetwofriendsworkthroughthefusionconfusionandfightasone?Findoutinthisaction-packed,illustratedchapterbookthat’sperfectforyoungDCSuperHerofans!