Orphans Amy and Dan belong to a rich and powerful family related to nearly everyone important in history. When their grandmother dies, she leaves 39 clues, spread across the planet, to a treasure that will make the finder immensely powerful. So all the relatives, none of them decent or honest (except Amy and Dan, of course), compete to find and solve the clues while trying to eliminate their competition. This proposed 10-book series (10 physical books followed by 29 online-only installments), each by a different author, includes cards plus a code for a Web site with an online game with cash prizes.

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