About the book: 2004 / Sally is sixteen years old and unusually pretty. Her knowledge of literature, languages ​​and music leaves much to be desired, but she knows how to run a business, dashingly ride a horse and shoot a pistol without missing a beat. When her father dies under mysterious circumstances, Sally is left alone in foggy London. She is in danger, although she doesn't know it. As the smog thickens over the city, so does the mystery, on the solution of which her life depends. And the culprit is an ominous secret contained in a ruby..