To the 130th anniversary of the birth of Mikhail Bulgakov! “A novel about the Devil” - this is how Bulgakov himself defined the concept of “The Master and Margarita”. What kind of relationship did the great writer have with evil spirits and how did his main novel change from the first version, entitled “The Black Magician”, to the penultimate one - “The Prince of Darkness” ?What is the detective line of Bulgakov’s masterpiece based on? Who are considered the real prototypes of Woland, Azazello, Korovin, Behemoth? And what price did Bulgakov have to pay for trying to look into the Abyss and penetrate the “department of Satan”? Answering all these questions, this book unravels the secret ciphers and dangerous mysteries of the greatest novel of Russian literature.