About the book: 2014 / The collection includes texts dedicated to the mysterious and deadly worm of the Gobi Desert - Olgoy-Khorkhoy. Among them there are science fiction stories, and reports of travelers and researchers - as well as cryptozoological articles and one bold scientific hoax... The second edition of the book is supplemented with new materials and a note about the influence of I. Efremov on the formation of modern ideas about Olgoy-Khorkhoy.