An abandoned old shack. A scrap of paper. Clues in a Rubik's Cube®. Twelve-year-old cousins Jo and Maggie plunge deep into a mystery when they enter an old, abandoned shack on the family farm and find a scrap of paper that says, 'I hid the ten thous...' When two neighbor boys show up to join the hunt, the competition is on. Who will find the treasure first? Don't miss Book Two: Secret Passage Mystery.
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