The designation "Earth-TRN973" used in this article is an unofficial Temporary Reality Number assigned by our wiki exclusively for internal archival purposes until an official designation is provided by Marvel.
History
Invisible Woman's history is presumably similar to her Earth-616 counterpart's. When the Kree attacked Earth, she and rest of the Fantastic Four planned to leave with Earth's many superheroes to fight the Kree. She tried to convince the Sub-Mariner to join her and the others, but the Sub-Mariner considered defending Atlantis to be his main priority and refused to join them. Sue later left with the other superheroes and never returned.[1]