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WHERE ARE AMY AND DAN CAHILL? The two kids were last seen in Egypt, hunting for one of the 39 Clues that could make them the most powerful people on earth. But no one has seen the siblings since. Has the ruthless Irina Spasky finally tracked them down? Or worse . . . the Madrigals?
No one knows where the Clue hunt leads next. But one thing is certain - Book 5 is gearing up to be Dan and Amy's most dangerous adventure yet.

Patrick Carman is the “New York Times” bestselling author of such acclaimed series as the Land of Elyon and Atherton, the teen superhero novel “Thirteen Days to Midnight”, and the first Dark Eden book. A multimedia pioneer, Patrick authored “The Black Circle”, the fifth title in the 39 Clues series, and the groundbreaking Skeleton Creek and Trackers books. An enthusiastic reading advocate, Patrick has visited more than one thousand schools, developed village library projects in Central America, and created author outreach programs for communities.