A unique book. A book that has collected a harvest of prizes and nominations for prizes simultaneously in the genres of detective, science fiction, fantasy and modern prose. A book whose genre is difficult, almost impossible to determine. A novel that critics compare with the works of Saphon and Borges, Kafka and Calvino. This is the story of Charles, an ordinary clerk in a detective agency, investigating very unusual crimes in a city where it always rains. When the agency's most famous detective disappears under mysterious circumstances, Charles is forced to take his place. He is handed a strange “Textbook for Detective” - then the newly minted investigator will have to act on his own and remember: in labyrinths, things are not what they seem...