After years of hiding her powers and heroic deeds from the public, Supergirl is finally revealed to the world! The story of one of history�s greatest heroes continues as Kara Zor-El defends the planet from the likes of Lex Luthor, Mr. Mxyzptlk and more, while teaming-up with Superman, the Legion of Super-Heroes and her new pet, Comet the Super-Horse. Supergirl: The Silver Age Vol. 2 collects Supergirl�s backup stories from Action Comics #285-307, by such talented writers and artists as Jim Mooney, Leo Dorfman and Jerry Siegel.