About the book: 1991 / "Steel Jump" by Per Wahl (1926–1975), known to Russian readers mainly for detective stories created by the writer in collaboration with Mai Schöwall (r . 1935), in form - a police novel, in essence - a dystopia. Written in 1968, the book is not outdated. Now it looks less fantastic. The reader will again meet Commissioner Jensen, the hero of the fantastic-sociological detective story “The Death of the 31st Department”».