The Edge of the Unknown Author:Sir Arthur Conan Doyle Preface: — "There is a passage in that charming book "The Bridge of San Luis Rey" which runs as follows: 'She was one of these persons who have allowed their lives to be gnawed away because they have fallen in love with an idea several centuries before its appointed appearance in the history of Civilization. She hurled herself against the obstin... more »acy of her time.' We who believe in the psychic revelation, and who appreciate that a perception of these things is of the utmost importance, certainly have hurled ourselves against the obstinacy of our time. Possibly we have allowed some of our lives to be gnawed away in what, for the moment, seemed a vain and thankless quest. Only the future can show whether the sacrifice was worth it. Personally I think that it was. Among the various chords which are struck in this little book there may be some to which the mind of the reader will respond, and which may entice him also in the search for the Holy Grail."