Today's Fact
For her first three years Sue could only vanish — until the mailbag turned her into the strongest member of the team.
When the Fantastic Four debuted in Fantastic Four Vol. 1 #1 (1961), Susan Storm had exactly one power: she could turn invisible. She could not shield anyone, lift anything, or strike back, and in story after story her role shrank to sneaking, hiding, and waiting to be rescued while the men did the fighting.
Readers wrote in to say so. The letters pages filled with complaints that the team's only woman was also its weakest member, and Stan Lee and Jack Kirby answered the criticism inside the comic itself: in Fantastic Four Vol. 1 #22 (1964), Sue discovered she could project invisible force fields — shaping them, expanding them, and using them to move objects and protect the whole team at once.
That single addition quietly rewrote the Fantastic Four's power balance. The force fields grew from a defensive bubble into the most versatile weapon on the roster — platforms, rams, scalpels and cages — and modern readings of Sue's powers trace everything back to the 1964 fix that the fans themselves demanded.
Why It's Obscure
One letters page changed a sidekick-grade power into the Fantastic Four's heaviest artillery.
Gallery
Sue in her own spotlight — the solo covers that only exist because the force fields made her a lead, not a bystander.



Sources
Every fact on this page was checked against at least two independent sources before publication.
Bullpen Bulletins
- Invisible Woman In Comics — Marvel.com Marvel's official character history: Sue's invisibility, her force-field projection and manipulation, and her growth into the team's unifying powerhouse.
- Sue Storm: Start Here — Marvel Echoes Primer A reading primer pinpointing Fantastic Four Vol. 1 #22 (1964) as the issue where Sue's invisible force fields first appeared and transformed her role.