The Oak Island Mystery: The Secret of the World's Greatest Treasure Hunt (Mysteries and Secrets Book 1) / Lionel Fanthorpe, Patricia Fanthorpe

In 1795 three boys began to dig, and what they uncovered started the world's greatest and strangest treasure hunt but nobody knows what the treasure is. After years of research, the authors have finally solved the sinister riddle of Oak Island, but their answer is challenging, controversial, and disturbing.