In the monograph, for the first time in literary criticism, the contact-typological parallel of Hesse - Nabokov - Bulgakov was identified and analyzed at the level of proximity of philosophical and aesthetic problems and artistic style (characters, genre, composition, narration, etc.). On the material of the "top" creations of these authors - "Steppe Wolf," "Gift" and "Master and Margarita" - it is shown that in the interwar period of the late 1920s - 1930s. both in Russian, metropolitan and foreign, and in Western European literature, a unique aesthetic phenomenon arose - mystical metaprose, which has a stable set of distinctive criteria.