The hunt for 39 hidden Clues that lead to an unimaginable power has taken a heavy toll on fourteen-year-old Amy Cahill and her younger brother, Dan. They’ve just seen a woman die. They’re wanted by the Indonesian police. They’re trapped on an island with a man who knows too much about the death of their parents. And a tropical storm is rolling in. Just when they think it can’t get any worse, it does. Because the Cahills have one more rattling skeleton for Amy and Dan to discover . . . the terrible truth about their family branch.

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