The Mystery of the Vanishing Treasure (Alfred Hitchcock and the Three Investigators Series 5) By Arthur, Robert Books / Paperback Fiction › Mystery & Adventure Publisher: Armada Books, January 1968 Price $12.51 Free Shipping Send to a friend Used - Good Good condition. (Detectives, mystery, fiction) $12.51 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store.