Alfred Hitchcock and The Three Investigators in The Mystery of the Vanishing Treasure #5

Random House, New York, 1966. Hardcover. Very Good condition. Pictorial hardcover, 158 pages. First printing of book five in the Alfred Hitchcock and the Three Investigators series (series is listed up to The Secret of Skeleton Island on rear cover). Cover is bright with some wear and corner bumping. No references to Gibraltar Library binding. Abrasions to bottom and top of spine, slight toning to textblock. "A baffling museum robbery, assist a lady troubled by a bad case of gnomes...adventurous exploits."