Ibis and Taia next appear in a Justice League/Justice Society crossovers as members of a team referred to as Shazam's Squadron of Justice. These heroes live in a parallel universe on a world called Earth-S. Along with many other Earth-S characters, they were imprisoned in Doctor Sivana's Suspendium globe, but released twenty years later when it drifted near the Sun. Ibis was a member of the Squadron of Justice, organized to defeat King Kull when he paralyzed the Marvels and tried to destroy all three Earths. Ibis helped stop Mr. Atom from destroying the futuristic City of Tomorrow on Earth-One.