Richard Milner, an American historian of science, has presented a case that Doyle may have been the perpetrator of the Piltdown Man hoax of 1912, creating the counterfeit hominid fossil that fooled the scientific world for over 40 years. Milner noted that Doyle had a plausible motive—namely, revenge on the scientific establishment for debunking one of his favourite psychics—and said that The Lost World appeared to contain several clues referring cryptically to his having been involved in the hoax.[102][103] Samuel Rosenberg's 1974 book Naked is the Best Disguise purports to explain how, throughout his writings, Doyle had provided overt clues to otherwise hidden or suppressed aspects of his way of thinking that seemed to support the idea that Doyle would be involved in such a hoax.[104]