Cat instead. Following the success of Whale's The Invisible Man, producer Carl Laemmle, Jr. realized that Whale was the only possible director for Bride; Whale took advantage of the situation in persuading the studio to let him make One More River. Whale believed the sequel would not top the original, so he decided instead to make it a memorable "hoot". According to a studio publicist, Whale and Universal's studio psychiatrist decided "the Monster would have the mental age of a ten-year-old boy and the emotional age of a lad of fifteen". Screenwriter Robert Florey wrote a treatment entitled The New Adventures of Frankenstein — The Monster Lives!, but it was rejected without comment early in 1932. Universal staff writer Tom Reed wrote a treatment under the title The Return of Frankenstein, a title retained until filming began. Following its acceptance in 1933, Reed wrote a full script that was submitted to the Hays office for review. The script passed its review, but Whale, who by then had been contracted to direct, complained that "it stinks to heaven". L. G. Blochman and Philip MacDonald were the next writers assigned, but Whale also found their work unsatisfactory. In 1934, Whale set John L. Balderston to work on yet another version, and it was he who returned to an incident from the novel in which the creature demands a mate. In the novel Frankenstein creates a mate, but destroys it without bringing it to life. Balderston also created the Mary Shelley prologue. After several months Whale was still not satisfied with Balderston's work and handed the project to playwright William J. Hurlbut and Edmund Pearson. The final script, combining elements of a number of these versions, was submitted for Hays office review in November 1934. Kim Newman reports that Whale planned to make Elizabeth the heart donor for the bride, but film historian Scott MacQueen states that Whale never had such an intention. Sources report that Bela Lugosi and Claude Rains were considered, with varying degrees of seriousness, for the role of Frankenstein's mentor, Pretorius; others report that the role was created specifically for Ernest Thesiger. Because of Mae Clarke's ill health, Valerie Hobson replaced her as Henry Frankenstein's love interest, Elizabeth. Early in production, Whale decided that the same actress cast to play the Bride should also play Mary Shelley in the film's prologue, to represent how the story — and horror