The Truth of Spiritualism. Individual Articles, Letters & Pamphlets

The Truth of Spiritualism is an essay or article by Arthur Conan Doyle in which he lays out a concise case for the reality and reliability of spiritualism. Writing with evangelical zeal, Doyle summarizes years of evidence - spirit photographs, voice recordings of mediums, accurate trance messages, and personal experiences - to assert that spiritualism is not a delusion but a proven fact. He likely addresses common criticisms ("It's all fraud or imagination") and counters them with documented instances that skeptics struggle to explain.
The tone is confident and didactic: Doyle presents spiritualism almost as one would present a legal case, hence "The Truth of Spiritualism." He might highlight one or two exemplary proofs, such as a séance where a medium revealed verifiable information unknown to them, or a materialization witnessed by many. Moreover, Doyle emphasizes the positive implications: if spiritualism is true, it confirms the afterlife and can comfort humanity.
This piece, written near the end of Doyle's life, distills his core message after years of lectures and books: that through rational investigation, the continuation of consciousness after death has been demonstrated. The Truth of Spiritualism is thus Doyle's rallying cry for recognition of what he sees as the most important discovery of his era.