Low $585
Mid $2.7k
High $19k
  • 1st team appearance and origin of the Legion of Super-Heroes: Cosmic Boy, Lightning Boy, Saturn Girl
  • 1st appearance of Cosmic Boy
  • 1st appearance of Lightning Boy, later becomes Lightning Lad
  • 1st appearance of Saturn Girl
Publisher DC
Published April 1958
Written By Otto Binder
Illustrated By Curt Swan