253. "Superman: The War Between Jimmy Olsen and Superman!", "Supergirl: The Secret of the Super-Orphan!", "Congo Bill: The Destroyer of Congo Bill!"

Superman takes Jimmy Olsen to his Fortress of Solitude in order to show him some of his latest discoveries, including a Venusian Chameleon Jewel, and the Bottle City of Kandor before returning him back to Metropolis so that he can write the story.