"Juvenile works" . . . . . . "The reader is asked to solve five mystery stories using clues hidden in each story."@en . . . "Alfred Hitchcock's"@en . "Alfred Hitchcock's solve-them yourself mysteries"@en . . . . . . . . . . . . . . . "Solve-them-yourself mysteries"@en . "Solve-them-yourself mysteries" . "Alfred Hitchcock's Solve-them-yourself Mysteries. Illustrated by Lennie Sak"@en . . . "Mystery fiction" . "Solve-them-yourself-mysteries" . . . . "Alfred Hitchcock's solve-them-yourself mysteries"@en . "Alfred Hitchcock's solve-them-yourself mysteries" . "Alfred Hitchcock's Solve-Them-Yourself-Mysteries" . "Alfred Hitchcock's solve-them-yourself-mysteries" . . "Fiction" . "Children's stories" . . "A collection of five mystery stories, in which clues are provided for the reader to solve the mystery himself." . "Juvenile works"@en . . . "Mystery fiction." . . "Mystery and detective stories." . . "Detective and mystery stories." . .