BOOKS ARE SOMETIMES published posthumously. In the nineteenth century, books were occasionally written posthumously when spiritualist mediums claimed to receive communications from the spirits of famous writers anxious to keep in touch with their public from beyond the grave. Oscar Wilde wrote his last book twenty-six years after his death, Oscar Wilde from Purgatory: Psychic Messages (1926), edited by Hester Travers Smith, the medium who received the messages while in trance and inscribed them through the process known as “automatic writing.” The book was highly regarded in the spiritualist community, boasting a preface by Sir William Barrett, a famous physicist, a member of the British Association for the Advancement of Science, and – along with a number of other illustrious men of science such as physicists Sir William Crookes and Oliver Lodge as well as biologist Alfred Russell Wallace – a convert to spiritualism.