This is a classic science fiction short story by Stanley G. Weinbaum that was originally published in Astounding Stories in 1935. It tells the story of an experimental medical procedure on a woman close to death. The procedure brings her back from the brink but gives her unexpected powers of adaptation, making her incredibly dangerous. The pair that created her must find some way of stopping her, but will they find a way to nullify her superhuman abilities? Find out in this classic tale of human enhancement. This work is part of our Vintage Sci-Fi Classics Series, a series in which we are republishing some of the best stories in the genre by some of its most acclaimed authors, such as Isaac Asimov, Marion Zimmer Bradley, and Robert Sheckley. Each publication is complete with a short introduction to the history of science fiction.