Challengers of the Unknown 78
February 1973

"The Isle of No Return"

"The Sorceress of Forbidden Valley!"

Cover: Jack Kirby
20¢
Story and art © DC Comics

Reprints "The Isle of No Return" from COTU 7 and "The Sorceress of Forbidden Valley!" from COTU 6.

The Challs' uniforms are recolored yellow and red to reinforce their superhero image.

Instead of a letters page, there's a text page, "The Return of the Challengers!" It gives a quick history of the Challs, then talks about the many reprints DC is putting out: Metal Men, Doom Patrol, Four Star Battle Tales. None of them lasted more than four issues. The Challs got three.