Six Legionnaires travel to a world with a primitive, feudal society, in search of three missing United Planets explorers. They find their old enemy Mordru in disguise, attempting to take over the planet.
Characters: Legion of Super-Heroes [Princess Projectra; Phantom Girl; Star Boy; Shadow Lass; Sun Boy; Chameleon Boy]; Mordru [Lord Romdur]; King Leon; Lord Harlund
Script: Gerry Conway
Pencils: Steve Ditko
Inks: Frank Chiaramonte
Colors: Gene D'Angelo
Letters: Ben Oda