John Dee was not just a mystic and mathematician, adviser to Francis Drake and astrologer to Queen Eliazbeth I: he also kept the first great diary in the English language. Now his private journals and spirit diaries are brought together for the first time, compiled from the original documents in the Bodleian Library and the British Museum. They tell the story of hiw his soaring ambition led him to believe that he could discover the key to all knowledge through the mysterious alchemist and spirit-raiser, Edward Kelly. His quest took him to the court of the holy Roman emperor, Rudolph II, and from there to a secluded castle in Bohemia where the diaries reveal how he and Kelly signed a pact to share their wives in common. The diaries also chart Kelly's success as an alchemist, while Dee himself ended up discredited, alone and misunderstood.