Superboy & the Legion of Super-Heroes #257

In "Who Stole the Legion?", the Legion of Super-Heroes finds itself torn apart when a sudden earthquake strands them across two separate locations: while Superboy, Chameleon Boy, Timber Wolf, and Mon-El attempt to break into the secluded estate of ex-billionaire R. J. Brande, the rest of the team is arrested by police at the Cosmic World amusement park. With Brainiac 5 gravely ill and the park’s closure seemingly linked to a larger conspiracy, the Legion must unravel a mystery that implicates Earth’s President Kandru—while the team races to prevent disaster, unaware that their own actions may be the very cause of the chaos.

In "Once a Legionnaire...!", Bouncing Boy and Duo Damsel, now retired from the Legion after their marriage, find their quiet life on Wondil IX disrupted when a runaway freighter threatens the planet. Forced to act, they deliberately falter in a battle against a crystalline entity, allowing a local hero to step in—and in doing so, preserve their peace while still protecting the world they’ve come to call home.