“An adrenaline-charged thriller… Charlie is a terrific hero—outrageously smart, courageous, and still believable as a kid. After this explosive start, young readers will eagerly await her next adventure.” — Publisher’s Weekly

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Charlie Thorne is a genius.

Charlie Thorne is a thief.

Charlie Thorne isn’t old enough to drive.

And now it’s up to her to save the world…

Decades ago, Albert Einstein devised an equation that could benefit all life on earth—or destroy it. Fearing what would happen if the equation fell into the wrong hands, he hid it.

But now, a diabolical group known as the Furies are closing in on its location. In desperation, a team of CIA agents drags Charlie into the hunt, needing her brilliance to find it first—even though this means placing her life in grave danger.

In a breakneck adventure that spans the globe, Charlie must crack a complex code created by Einstein himself, struggle to survive in a world where no one can be trusted, and fight to keep the last equation safe once and for all.

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Books by Stuart Gibbs: 

Gibbs Charlie Thorne
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Charlie Thorne and the Lost City
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Gibbs Spy School
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Gibbs Camp
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Gibbs Evil
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Gibbs Ski
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Gibbs South
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Gibbs Secret Service
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Gibbs British
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Gibbs Revolution
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Gibbs Belly
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Gibbs Poached
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Gibbs Big Game
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Gibbs Panda
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Gibbs Lion Down
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Gibbs T - Wrecks
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Funjungle Bear Bottom
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Gibbs Space Case
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Gibbs Waste
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Gibbs Spaced Out
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