INCOMING! Amy and Dan have been found UNHARMED! But perhaps not for long - the ruthless Irina Spasky is right on their tail.
And WHAT are those crazy kids doing poking their noses into Lucian secrets?!?
Are they TRYING to get themselves killed?

Edgar, a gifted climber, secretly scales the treacherous walls separating the three worlds of Atherton: the humble grove that is his home...a mysterious highland realm of untold beauty and sinister secrets ...and a vast wasteland below, where a monstrous danger lurks that could destroy them all.
While searching the forbidden cliffs for a treasure lost in his faded memory, Edgar discovers the first of many startling revelations to come: the three realms are beginning to collapse, turning his entire world inside out. Atherton is not what it seems, but something far more dangerous, with a history locked inside the mind of a madman and a future beyond Edgar's wildest imagining.

Bestselling author Patrick Carman sends Dan and Amy on a twisting thrill ride adventure in the highly anticipated Book Five of the 39 Clues series.
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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.