Secret of the Old Mill (Hardy Boys, Book 3), The

Franklin W. Dixon

Set in the sleepy town of Bayport, the Hardy Brothers, Frank and Joe, embark on a suspenseful journey to unravel the secrets of the old mill. As they delve deeper into the mystery, they encounter secrets, danger, and adventure, testing their problem-solving skills and courage. But will their detective work be enough to uncover the truth before it's too late?