Legion of Super-Heroes — DC Comics
Issue: #266 MJ
Bouncing Boy and Duo Lass accidentally free Kantuu from his centuries-old prison, and they and Element Lad and Colossal Boy Take Kantuu on in a battle that comes to a cliffhanger climax.Bouncing Boy and Duo Damsel accidentally release a demon called Kantuu when they are on a trip on an isolated planet of frost. The demon moves directly for Earth and Duo Damsel informs the Legion of the events, wit...
First appearances: Kantuu
Creators: John Costanza, Dick Giordano, Gerry Conway, Gene D'Angelo, Frank Chiaramonte, Jimmy Janes, Jack C. Harris
Characters: Bouncing Boy, Colossal Boy, Element Lad, Duplicate Girl, Kantuu