There are also unverifiable rumours that the occultist Aleister Crowley sought to contact Hitler during World War II. Despite several allegations and speculations to the contrary, there is no evidence of such an encounter. In 1991, John Symonds, one of Crowley's literary executors, published a book: "The Medusa's Head or Conversations between Aleister Crowley and Adolf Hitler", which has definitively been shown to be literary fiction. That the edition of this book was limited to 350 also contributed to the mystery surrounding the topic. Mention of a contact between Crowley and Hitler—without any sources or evidence—is also made in a letter from René Guénon to Julius Evola dated October 29, 1949, which later reached a broader audience.