She\'s traversed time and space, fixing everything she messed up, but one (pretty dang big) question remains: Just who the heck gave Harley Quinn a time machine in the first place? The answer needs to be seen to be believed! Harley\'s time-hopping, universe-screw-upping adventure comes to a close in this Starro-studded finale! (W) Frank Tieri (A) Logan Faerber (CA) Amanda Conner