the Invisible Girl, a.k.a. Susan Storm, charter member of the Fantastic Four. Although female characters would develop and become cornerstones of the Marvel Universe, their early treatment would show a struggle to be recognized as equals. Supergirl of DC Comics went through such a struggle as she fights against the title of "Superman's kid cousin" to earn her own title as Power Girl. Bronze Age of Comic Books The Bronze Age of Comics reflected many of the feminist tensions of the era. The number of female characters, both heroes and villains, increased substantially in the 1970s, in response to the feminist movement, and in an attempt to diversify readership. However, these characters were often stereotypical, such as the man-hating Thundra or angry-feminist parody Man-killer. Meanwhile in the underground comix circle The Women's Liberation Basement Press published a one-shot comic titled It Ain't Me, Babe in 1970 that featured many of the most famous female comic icons. This would evolve into Wimmen's Comix, an underground anthology series that would run through 1992, dealing with many controversial women's issues. Other all-female underground anthology series soon followed, the most notable being Tits & Clits Comix and Twisted Sisters, as well as the one-shot Mama! Dramas, published by Educomics. The character Ms. Marvel is an example of Marvel's struggle with the issues of feminism. Debuting in 1977 at the height of the women's liberation movement, with the honorific "Ms." part of her cryptonym, the heroine's name was a strong symbol of feminist solidarity, as was her civilian job as editor of Woman magazine (a reference to the then-new Ms. Magazine). The first couple of issues of her self-titled comic book even included the cover line "This Female Fights Back!" The reality, however, was decidedly mixed. The controversial Ms. Marvel rape was handled poorly by Marvel Comics: Ms. Marvel was the victim of a man's attempt to escape from Limbo, and gave birth to the child of the man that raped her; her teammates were confused as to why she would not want the child, and she subsequently fell in love with him and moved into Limbo with him. Chris Claremont, a writer most famous for the Uncanny X-Men series, shared in the disgust in the misogynistic treatment of Danvers in that story and wrote a follow-up in response. Danvers, who has returned to Earth and is living at Professor Charles Xavier's school, is visited