Georgii Demidov (1908-1987), a physicist, a pupil of academician Lev Landau, was arrested in 1938 and served for 14 years at the Kolyma camps. Demidov was acquainted with another political prisoner Varlam Shalamov, and later became a prototype for his story "Zhitie Inzhenera Kipreeva". This is second book of stories by Demidov, the author of "Chudnaia planeta" (2008),