The Edge of the Unknown. Collected Articles, Letters & Pamphlets

The Edge of the Unknown is Arthur Conan Doyle's final major work, a collection of essays and articles delving into mysterious and psychic phenomena. Compiled in the twilight of his life, this volume finds Doyle investigating assorted "unsolved" mysteries-from the uncanny powers of Houdini to ghostly encounters and spirit communications. Written with conviction, Doyle uses each chapter to champion the spiritualist cause, offering what he sees as compelling evidence of an unseen reality.
He addresses skeptics head-on, discussing mediums, haunted houses, automatic writing, and other occult topics with a mix of storytelling and reportage. Serving as a capstone to his spiritualist writings, The Edge of the Unknown provides a fascinating glimpse into Doyle's relentless quest to prove the existence of the paranormal, written with the fervor of a believer intent on sharing his "new revelation" of the unseen world.