The extent to which Holmes opened Clemens’s eyes about the head readers as frauds, served as his leading guide into the pseudo-science of phrenology, and provided a template for him to lampoon the head readers is addressed in this chapter. Three questions are asked. First, was Clemens familiar with Holmess writings? Second, did he meet Holmes? And third, is there evidence to suggest that Clemens “borrowed” some of Holmess ideas and humorous ways of presenting his thoughts about the head readers and their so-called science? Each of these questions is answered in the affirmative using the letters they exchanged, showing when they met, and by examining their writings. Most notable is how Mark Twain used the same two-column structure that Holmes had used in 1859 to present what the head reader was telling a client but really thinking. This chapter is particularly important because Holmes has not been recognized for having such an influence on Clemens/Twain. Nor had it been shown how Mark Twain borrowed rather freely from Holmes. Then again, scant little has been published on Clemens’s/Mark Twain’s forays into phrenology and there is nothing on Holmes and the head readers.

Clemens must have continued to have his doubts about the head readers into the 1870s, because he decided to conduct an experiment of his own on a leading head reader in 1872. Having discovered some of the tricks mediums were using, he made two trips to Lorenzo Fowler’s phrenological emporium in London. He dressed and acted like a nobody during the first trip. Then, after some weeks had passed, he returned and presented himself as the famous American humorist and author Mark Twain. He would later describe his great awakening in a short but serious published letter, and with humor and artistic liberties in an autobiographical dictation and his posthumous but never-completed novel Eddypus. The letter and phrenological parts of his dictation and Eddypus are presented in this chapter. Being told on his first visit that his head had a cavity above the organ for a sense of humor and on his second that he had a Mount Everest in the same spot would change how he would depict the head readers in his most famous novels. Writing as Mark Twain, Samuel Clemens would now set forth to educate the gullible public.