While the Clock Ticked

Frank and Joe solve the mystery of the secret locked room in the spooky Dalrymple Mansion.

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For action, mystery and cliff-hanging suspense, read THE HARDY BOYS MYSTERY STORIES® – featuring the thrilling adventures of America’s favorite detective duo, Frank and Joe Hardy. Millions of young readers have teamed up with the Hardy Boys, helping them in their quest to bring criminals to justice. Be a part of the fun! Start your collection of original hardcover Hardy Boys® Mysteries today!