This is a collectors grade module new in package with no damage to package and in great shape, see photo. It looks as though it has come from a time portal, original 1983 by David Cook, for Basic Dungeons and Dragons.
David "Zeb" Cook is an American game designer best known for his work at TSR, Inc., where he was employed for over fifteen years. Cook grew up on a farm in Iowa where his father worked as a farmer and a college professor. In junior high school, Cook playing wargames such as Avalon Hill's Blitzkrieg and Afrika Korps. "I was primarily a wargamer, but there wasn't any role-playing available then," although in college, he was introduced to the Dungeons & Dragons role-playing game through the University of Iowa gaming club. Cook earned his B.A. in English (with a Theater minor) in 1977. He married his high school sweetheart, Helen, with whom he had one son, Ian. Cook became a high school teacher in Milligan, Nebraska, where his students gave him his nickname of "Zeb"; the name derives from his signature, which is dominated by a stroke resembling a 'Z'.