Supergirl and Power Girl in the same comic. It's a cool idea considering they're sort of the same character, only from different 'worlds.' EARTH 2 writer, James Robinson has said the unofficial rule is you can't have an Earth 2 and Earth Prime version of the same character. Clearly Power Girl is the exception to the rule.

Last issue, with all the craziness of last month's titles, we not only saw a confrontation between the two, but also the return of Power Girl's original costume. With issue 20 out next week, things aren't looking too good for Supergirl. Check out our exclusive preview courtesy of DC Comics.

SUPERGIRL #20

Supergirl is dead—Long live Supergirl! Or so it seems as the strange connection between the Karas has Power Girl becoming Supergirl again.

Written by: Michael Alan Nelson

Art by: Mahmud Asrar

Cover by: Emanuela Lupacchino

Color/B&W: Color

Page Count: 32

U.S. Price: 2.99

On Sale Date: May 15 2013