During a trip on the metro, Nadezhda Lebedeva enjoys watching a young artist who very talentedly draws passengers. But soon she witnesses an accident in which the girl gets into. Nadezhda manages to save the artist’s bag with drawings from a thief, and she decides to return it to its owner. But, upon arriving at the hospital, Nadezhda witnesses another attempt on the girl’s life! She decides to find out what Katya has that makes a real killer hunt her. Previously, the book was published under the title “The Enchanted Box”