Reading crease, minor edgewear/bumping. Text is starting to yellow, but clean and unmarked.
"Now! Test your wits against the fantastic boy sleuth as he tackles ten mind-astounding puzzles including 'The Case of the Mysterious Tramp' (How did John Morgan give himself away?); 'The Case of the Bitter Drink' (How had Melvin cheated?); 'The Case of the Divining Rod" (How did Encyclopedia know the divining rods were fake?) Are you stumped? The answers are all here." Black and white illustrations by Leonard Shortall.
Age Level: Grades 2-6; 6¾" - 7¾" Tall