sentences:  One particularly well-planned escapade requires the efforts of the Justice League of America and the Justice Society of America (in one of their dimension-crossing team-ups, which DC produced annually from the mid-1960s to the mid-1980s), as well as a group of heroes of Captain Marvel and King Kull's home universe of Earth-S, referred to unofficially as Shazam's Squadron of Justice.All of these are required because Kull has captured both the wizard Shazam who grants the Marvel Family's powers and the ancient gods and goddesses the powers are drawn from after gaining access to the Rock of Eternity with a faster-than-light ship, paralyzing them with a device that slowed down their impulses, except for the swift Mercury who was able to get away in time; after Shazam makes telepathic communication with him he warns other heroes from the Three Earths about King Kull.Johnny Thunder's Thunderbolt helps the Marvels get their powers back in the final issue and transports them to the Rock of Eternity.