"Mystery and detective stories." . . . . . "Krimischule für junge Privat detektive" . . . . "Krimischule für junge Privatdetektive" . . . . . . "Puzzlers for young detectives. Trs. H. Meyer"@en . . . . "Krimischule für junge Privatdedektive" . . . . . . . "Sixteen-year-old Harry solves twelve crimes with the aid of Detective Fox and cousin Connie. The reader can formulate his own conclusions or consult the answers given at the back of the book." . "Puzzlers for young detectives" . "Puzzlers for young detectives"@en . "Sixteen-year-old Harry solves twelve crimes with the aid of Detective Fox and cousin Connie. The reader can formulate his own conclusions or consult the answers given at the back of the book."@en . .