Eventually, the Silver Surfer rebelled against Galactus, who confined him to Earth as punishment ... Mephisto brainwashed ...
A convoluted story revealed that Shalla-Bal had her consciousness replaced by Mephisto, with the latter marrying her as a Latverian peasant girl and forcing ... must defend Earth from a ravenous ...
The synopsis for First Steps teases Shalla-Bal’s role as Galactus’ herald, with the description reading: They [the Fantastic Four] must defend Earth from a ravenous space god called Galactus ...