A Legion of Super-Heroes tale featuring the first appearances of Chameleon Boy, Colossal Boy and Invisible Kid! The Legion travels back in time once again—but this time they're looking to recruit Superman's cousin, Supergirl!

Written By:
Henry Boltinoff, Jerry Siegel, Otto Binder
Henry Boltinoff, Jim Mooney, Wayne Boring
Henry Boltinoff, Stan Kaye, Jim Mooney
Cover By:
Curt Swan, Stan Kaye