. . . . . . . . . . "Das Geheimnis des Schachturms" . "The crow and the castle" . "The crow and the castle"@en . . . . . . . . . "Missing chesspiece, two gangsters, sinister strangers, an eccentric old man, and a pair of wisecracking 16-year-old detectives." . . . "Detective and mystery stories"@en . "Detective and mystery stories" . . "Crows Stories." . . "Schach." . .