The plot of the detective novel touches on events related to the 19th century. It immerses the reader in an adventurous story of investigating thoroughbred Orlov horses that were stolen from the Tula stud by horse thieves. The detective story is a continuation of the novels: “The Case of the Sect of the Skoptsy” and “The Treasure of Alyetver’s Khudeyar.” The book is the third in a series of novels describing life and everyday life of representatives of different social strata in Russia of this period, but it is fully independent in its plot.