Adventure Comics #315

In "Part I: The Legionnaire's Super-Contest!", the Legion of Super-Heroes sets up a challenge to find a new member, drawing in contenders from across the galaxy—including the Subs, a group of young heroes with a unique bond. When Stone Boy emerges as the victor, his decision to remain with his fellow Subs sets up a moment of quiet defiance, testing the values of the Legion itself.

In "Part II: The Winner of the Super-Tests!", the Subs face their final trials under the watchful eye of Saturn Girl, each pushing their limits in ways that test more than just strength. Night Girl triumphs over the tyrant Sun Woman, and the others complete their tasks—except Stone Boy, who walks away, leaving everyone stunned. But when Saturn Girl reveals his true reason, it becomes clear that his choice wasn’t defeat, but sacrifice, and the outcome surprises even the most seasoned of judges.