About the book: year / The story was originally written for the world of Dmitry Glukhovsky's "Metro 2033". The world of the future. 20 years after the nuclear disaster. The surviving people live in deep bunkers and subways. A wide variety of mutants roam the surface contaminated by radiation. The author presents his version of the appearance of rapid mutations in animals. This version of the story is untied from the world of “Metro” and is an independent work.