Lee did not want Sue to have super strength, "to be Wonder Woman and punch people", so eventually he came to invisibility, inspired by works such as Universal Pictures' "The Invisible Man". His original two-page plot summary for the first issue of "The Fantastic Four", reprinted in the "Marvel Masterworks" and "Marvel Epic Collection" editions of the first ten issues, handled Susan's powers similarly to "The Invisible Man", which required her to take off her clothes, but noting concern that that might be "too sexy" for a comic book. It also noted that she could not turn visible again, and would wear a mask recreating her face when she wanted to be seen. By the time the first issue was written and drawn, both elements had changed: Susan could turn invisible and visible at will, and doing so affected the visibility of whatever clothing she was wearing.