"Mystery of the green cat"@en . . . . . . . . . . . . "Solving of the mystery of the green cat helps bring a family of four children closer together. Grades 5-7." . . . "Fiction"@en . "De geheimzinnige buren" . . . . . . . . "Mystery of the Green Cat"@en . . "Detective and mystery stories" . . . . . . "Das Geheimnis der grĂ¼nen Katze" . . . . . "Mystery of the green cat" . . .