Author. Arthur Machen is the author of The Novel of the Black Seal, which was included in The Hastur Cycle as a precursor to The Whisperer in Darkness. He also wrote the non-mythos tales The Rose Garden and The White People.
Machen was a keen student and proponent of mystical belief and developed a deep interest in legends, such as those of King Arthur and of the Holy Grail.
Following the death of his first wife and a subsequent spiritual crisis, he was persuaded by his close friend A.E. Waite to join, for a time, the Hermetic Order of the Golden Dawn (see also). Machen also took up acting, his first wife having had a passion for the theatre.