Koronnyĭ nomer mistera X : roman

Summary: "Detective Ivan Podushkin unwittingly became involved in a very complicated case. A daughter and assistant of the famous magician Henry Donnelly came to his office. Svetlana is terribly frightened: she hears voices in her head, which require that she jump out the window. She excitedly told about how one night in her bedroom, a bearded man came and gave her an injection behind her ear. Since then, she has hears voices and pursuers. Ivan decided that she is mad, and refused to help. She ran away, leaving the hall empty. A few minutes later she jumped out the window of the neighboring house. When a private detective came down the street, the police had already arrived. During a difficult and dangerous aftermath, Ivan Podushkin and investigator Barbara Kosova had to make sure that no tricks had been played in this mysterious case..." -- cataloger's literal translation and interpretation of cover.