The new book by E. Muldashev is dedicated to the expedition of S. Levanevsky that disappeared in the 30s. The author of the book, a world famous ophthalmologist and researcher, decides to raise his old diaries of four Yakut expeditions of 1982-1985 to search for the missing crew of Levanevsky and write a book on them... nearly 30 years later. He reads into his field records and, as it were, relives those adventures with deadly risk that fell to the members of the expeditions. The events described in the book are so fascinating that the work is read in one breath.