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Charlie Thorne and the Last Equation by Stuart Gibbs
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Charlie Thorne and the Last Equation

$20.99

Get for $14.99 with membership
Narrator Emily Woo Zeller

This audiobook uses AI narration.

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Length 7 hours 39 minutes
Language English
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“Fast-paced, smart, and action-packed...a real page-burner.” —Chris Grabenstein, #1 New York Times bestselling author of the Mr. Lemoncello’s Library series

From New York Times bestselling author Stuart Gibbs comes the first novel in a thrilling new series about the world’s youngest and smartest genius who’s forced to use her unbelievable code-breaking skills to outsmart Einstein.


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.

Stuart Gibbs is the New York Times bestselling author of the Charlie Thorne series, FunJungle series, Moon Base Alpha series, Once Upon a Tim series, and Spy School series. He has written screenplays, worked on a whole bunch of animated films, developed TV shows, been a newspaper columnist, and researched capybaras (the world’s largest rodents). Stuart lives with his family in Los Angeles. You can learn more about what he’s up to at StuartGibbs.com.

Illustration of person sitting

Shop small, give big!

With credit bundles, you choose the number of credits and your recipient picks their audiobooks—all in support of local bookstores.

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Phone showing make the switch message

Limited-time offer

Get two free audiobooks!

Now’s a great time to shop indie. When you start a new one credit per month membership supporting local bookstores with promo code SWITCH, we’ll give you two bonus audiobook credits at sign-up.

Sign up today
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