Chameleon Boy is revealed as the winner of the contest in the previous issue, and spends almost all of Adventure 376 (Jan 69) in solo action in another dimension, even getting a romantic storyline, thanks to Jim Shooter.
The story reveals how Chameleon Boy beat Psyche, and adopted the identity of Bouncing Boy, having Proty II impersonate him to complete the cover-up.
Although he has won the championship, and was teleported to the dimension to face off against Kodar, the King gets upset that his daughter, Princess Elwinda, has fallen for the Durlan, and wants to stop him from fighting to save the kingdom. Pretty racist king there, willing to lose everything just to keep his daughter from marrying a man he doesn’t like.
But though he defeats Kodar, the Legionnaires track him down just as he is undergoing a bizarre wedding ritual (derived from the native ritual in the wedding between John Smith and Pocahontas, in fact), and teleport him back to “safety,” which also seals the gap between the worlds.
Chameleon is less than pleased to be home. Princess Elwinda never appears again, but he will meet a woman who resembles her in a story in Action Comics.