Oh, no! Supergirl has come to help Batman in the battle of Arkham Assylum, but Harley Quinn has a weapon she wasn't expecting. Apparently the Joker, with his knowledge of chemicals, has devised a synthetic kryptonite, which, as we can see, works effectively as poison gas against Supergirl.
This evil Arkham series continues with the following scenes:[link][link][link]
Supergirl's blouse and hotpants costume (used throughout the 70s up to 1982) has always been my favorite of her many, many costumes, and the most sexy. I added a twist by making her blouse tied up under the breasts. See my gallery for plenty more of Supergirl in this costume!