On October 11, 1988, Thomas Disch (the author of The Brave Little Toaster) had met with Fink and Roy E. Disney to discuss the idea, and within the next month, he had written a nine-paged treatment entitled King of the Kalahari.[19][20] Throughout 1989, several Disney staff writers, including Jenny Tripp, Tim Disney, Valerie West and Miguel Tejada-Flores, had written treatments for the project. Tripp's treatment, dated on March 2, 1989, introduced the name "Simba" for the main character, who gets separated from his pride and is adopted by Kwashi, a baboon, and Mabu, a mongoose. He is later raised in a community of baboons. Simba battles an evil jackal named Ndogo, and reunites with his pride.[21] Later that same year, Fink recruited his friend J. T. Allen, a writer, to develop new story treatments. Fink and Allen had earlier made several trips to a Los Angeles zoo to observe the animal behavior that was to be featured in the script. Allen completed his script, which was titled The Lion King, on January 19, 1990. However, Fink, Katzenberg, and Roy E. Disney felt Allen's script could benefit from a more experienced screenwriter, and turned to Ronald Bass, who had recently won an Academy Award for Best Original Screenplay for Rain Man (1988). At the time, Bass was preoccupied to rewrite the script himself, but agreed to supervise the revisions. The new script, credited to both Allen and Bass, was retitled King of the Beasts and completed on May 23, 1990.[21]