"Girl Power, Part V of V: Supergirls": On the surface of the Moon, the real Supergirl and her evil doppelgänger square off against one another. Dark Supergirl taunts Kara, claiming her father Zor-El hated his brother and sent her to kill
- You can't just arrive in Gotham City... and not tell... Batman.
Synopsis for "Girl Power, Part V of V: Supergirls"
On the surface of the Moon, the real Supergirl and her evil doppelgänger square off against one another. Dark Supergirl taunts Kara, claiming her father Zor-El hated his brother and sent her to kill her own cousin. Supergirl retorts she's just lying and pounces. As they trade blows and Dark Supergirl keeps taunting Kara, the JLA turn up, regrouped and ready to fight, but Dark Supergirl flies off into space. Supergirl tells Martian Manhunter to read her mind and "warn him they're coming" before pursuing.
Supergirl and Dark Supergirl clash in space. As they carry on attacking one another, Supergirl lures her evil duplicate into following her to Gotham City. Both girls crash-lands in Gotham Harbor where Batman is already waiting for them. Dark Supergirl scoffs at Batman and tries to kill him, but Superman and Wonder Woman arrive to help Batman out.
The evil Supergirl power-dives into the real one and switches their costumes at super-speed. Now the Leaguers have no way of knowing which one is the real Supergirl and which one is the duplicate. Superman attacks both of them, thinking the real Supergirl will not defend herself, but both girls strike back. Wonder Woman manages to subdue Kara while Superman clashes with Dark Supergirl -still dressed as Supergirl-. Dark Supergirl hits him, recalling him everyone tells she's stronger. Superman hits her back and replies she shouldn't believe everything she hears because he's always instinctively holding back and he's sure he can stop her whenever he wants. Dark Supergirl invites him to test his theory, but Batman separates them with his Kryptonite Ring. Suddenly Supergirl breaks in and states there's one way to end this: Wonder Woman's Lasso of Truth.
Wonder Woman binds them together and commands the Supergirls to tell her who is the real Kara Zor-El. Since the mystical properties of the lasso can not adequately distinguish between the two, it merges them back together and Supergirl is once again whole.
Superman hugs his cousin. Kara states she's still missing most of her memories but it doesn't matter: the three of them are her surrogate family now and her mentors from now on. Later Supergirl flies around freely, thinking her story is just beginning, and what it's up to her finding out her true self... but she knows she's Kara Zor-El, Supergirl, and that's what truly matters.
Appearing in "Girl Power, Part V of V: Supergirls"
- Dark Supergirl (Dies)
- Green Kryptonite
- Green Lantern Ring
- Hawkman's mace
- Kryptonite Ring
- Lasso of Truth
- Lex Luthor's Warsuit (Flashback only)
- Nth Metal Wings
- Sunstone (Flashback only)
- Issue shipped with two alternate covers illustrated by Ian Churchill, Michael Turner and Peter Steigerwald.
- This issue is reprinted in the Supergirl: Power and Supergirl: The Girl of Steel trade paperbacks.
- Issue includes flashbacks to events from Superman/Batman #19 and Supergirl (Volume 5) #3.
- Last issue of the series to be written by Jeph Loeb.
- Dark Supergirl's claims were eventually proven wrong when Kara Zor-El's backstory was revealed, establishing her parents sent her to Earth to save her life and asked her to look after her cousin.
- Superman/Batman Annual #5 too revealed Dark Supergirl was the embodiment of Supergirl's self-loathing, post-traumatic stress disorder and survivor's guilt caused by her family's loss.
- Supergirl comments that there was time enough for only Kal-El's rocket left the galaxy implies that Krypton was outside the Milky Way Galaxy rather then only 27 light-years distant as shown in Action Comics #979
- One of the ships seen in Gotham Harbor is named Loeb III after writer Jeph Loeb.
Main article: Supergirl Recommended Reading
- Supergirl Recommended Reading
- Action Comics (Volume 1)
- Adventure Comics (Volume 1)
- All-Star Comics (Volume 1)
- Supergirl (Volume 1)
- Superman Family (Volume 1)
- Supergirl (Volume 2)
- Infinity Inc. (Volume 1)
- Power Girl (Volume 1)
- Supergirl (Volume 3)
- Supergirl (Volume 4)
- Supergirl (Volume 5)
- Supergirl and the Legion of Super-Heroes (Volume 1)
- Power Girl (Volume 2)
- Supergirl (Volume 6)
- Worlds' Finest (Volume 1)
- Supergirl (Volume 7)