“Jap Herron” is a controversial book attributed to Mark Twain, the renowned American author known for classics like “The Adventures of Tom Sawyer” and “Adventures of Huckleberry Finn.” The story behind “Jap Herron” is as intriguing as the book itself. In the early 20th century, a medium named Emily Grant Hutchings claimed to have communicated with Twain’s spirit after his death in 1910. Hutchings said that the novel was dictated to her and medium Lola Hays from beyond the grave by the deceased Twain through use of a Ouija board.