#100 The Secret of the Island Treasure
Frank and Joe return to the scene of their first case -- and uncover a new twist in an old crime!
A 300-year-old secret leads to a mystery as deep and dark and dangerous as ever!
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The landmark Tower Mansion, site of the Hardys' first triumph, is being converted into condos, and the construction workers have unearthed a pirate map leading to a cryptic message: "Here lies the greatest treasure of them all." Frank and Joe take the challenge and take the case, leaping into action once again!
But the Hardy boys have seen plenty of action, and one thing they've learned: The greater the treasure, the trickier the trail. A mysterious modern-day pirate, whose greed knows no bounds, is determined to keep The Secret of the Island Treasure all to himself ... even if it means getting Frank and Joe out of the way -- for good!
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