Lyudmila Petrushevskaya’s new book “Sanatorium”, according to an already established tradition, consists of prose, plays and fairy tales - approximately according to the same principle by which she writes in her notebooks, alternating different genres, so to speak, as they arrive. The harsh realism characteristic of it gives way to humor (the author is a winner of the “Maly Zolotoy Ostap” prize) and what is called fantasy (L. Petrushevskaya is the only one in Russia awarded the World Science Fiction Prize). New for the author is a story in this genre, “Letter to the Heart.”