Sally Lockhart hasn't been this happy in a long time. She lives in an old mansion with her little daughter and servants, her business is going well, her best friends travel the world. But suddenly, like a bolt from the blue, a notice comes from the court... Sally will need all her courage, all her natural intelligence and determination to single-handedly confront the cruel conspiracy. She will begin her investigation and find herself dangerously close to the tiger - the treacherous and vengeful Tzadik. This detective story takes place in London in 1881 and is connected with real events of that time.*** For many years, Sally Lockhart and her friend Jim searched for Adelaide, an orphan girl whose trail had disappeared in the London slums. Their search led them to the tiny kingdom of Raikavia, whose independence is in danger. The heroes of the novels “Ruby in the Darkness”, “Shadow of the North Star”, “Tiger in the Well”, as well as their new friend Becky, find themselves in the thick of historical events. Whether the kingdom will remain on the map of Europe depends on their will and courage.