The Immortality Key

The book explores the question of whether the communion wine in early Christianity contained hallucinogens.^[1][2] Muraresku spent 12 years researching the topic.^[3] The book discusses the Eleusinian Mysteries and their connection to early Christianity.^[4][5] Muraresku acknowledges in the book that his theory is speculative.^[6] Stone Village Television optioned the book for a television series.^[7] Muraresku had an interview on CNN to discuss the book.^[8]

The audiobook was the number 10 New York Times best seller throughout the month of November in 2020.^{[9][10][11][12]} The audiobook was number 6 in nonfiction books on Audible in October 2020.^[13]