Dates
- Cover date
- July 1971
- On sale
- May 20, 1971
- Pages
- 36
Editions and covers
- Original editionSource ↗
Creators
pencils: Neal Adams, Bob Brown, George Tuska, Jack Kirbyinks: Neal Adams, Murphy Anderson, George Tuska, Frank Giacoialetters: Gaspar Saladino, Ben Oda, Joe Letteresescript: Leo Dorfman, E. Nelson Bridwell, Murray Boltinoff, Cary Bates
Stories
- The Secret of Superboy's "Sister" · 15 pages
The Kents take Kathy in when her mom is injured in an accident. Kathy acquires mental ability when she absorbs all the knowledge from a space-brain.
- Invisible Invader! · 7 pages
Chemical King and Invisible Kid have to work together to thwart a criminal who has duplicated Invisible Kid's invisibility serum.
Reprinted in
Superman Supacomic (1959), The Best of DC (1979), The Legion of Super-Heroes Archives (1991), Showcase Presents: Legion of Super-Heroes (2007), DC Finest: Legion of Super-Heroes: Zap Goes the Legion (2024)