The Lion and The Mouse: A Story Of American Life

Klein's best-regarded drama, The Lion and the Mouse (1905), was prompted by a visit to the U.S. Senate. The story concerns a young woman taking on a powerful business tycoon. One of the corporate figures in the play was made to look like one of John D. Rockefeller's partners, H. H. Rogers. It was even made into a movie in 1928--a very early talkie using the Vitaphone process--starring Lionel Barrymore. This book was reissued again by Grosset at that time.

The Lion and the Mouse was seen as a powerful, skillful and not very subtly veiled portrait of Ida Tarbell and John D. Rockefeller.