Autograph letter signed, sent by Sir Arthur Conan Doyle to General Henrik Enesy, Librarian of the Spirit Researchers' Society, Budapest. In the letter dated 8 March 1926, Doyle thanks Enesy for his invitation to Vienna, and rejoices to hear of 'the progress which our movement - the greatest in the history of the human race - makes among you...'. He also comments on spiritualism, saying that 'more and more [he] sees that the phenomena are nothing - mere signals in order to call our attention to the messages, the first clear detailed account of what awaits us beyond the grave which has ever been made to the human race'; and 'when the certainty of this is realised it will give a common bond to all mankind, draw the various religions and nations closer together.... It will be the end of the dark ages'.