While sorting through an old archive, Professor Bartenev and his assistant Glafira Voznesenskaya came across a strange letter. As it turned out, it is connected with the fates of famous people who lived two centuries ago. A woman’s earring was also found in the envelope. The search for her owner led to amazing discoveries and... attracted the attention of criminals. After all, rarities are expensive. Very expensive... Where will the path of the poet's last letter to the one he idolized all his life end? Elena Dorosh writes for those who do not become despondent, are not afraid of trials and expect only good things from life. Her books are not just detective stories. They are not only about love. Each reveals a fascinating, sometimes little-known side of human existence.