The book "The Second Floor Thief" by the famous American writer Sinclair Upton tells a story about intrigue, betrayal and danger. The main character is a highly educated criminal who specializes in thefts in large buildings. His confidence and skill are admirable, but can he escape the trap set for him by people from his past? In this book, the author reproduces the atmosphere of tension and risk of each crime, where every step could be the last. "The Second Floor Thief" is an exciting story that leaves the reader in suspense until the last page.