Back cover copy:

Until the day I met John Smith, Number Four, I'd been on the run alone, hiding and fighting to stay alive.

Together, we are much more powerful. But it could only last so long before we had to separate to find the others. . . .

I went to Spain to find Seven, and I found even more, including a tenth member of the Garde who escaped from Lorien alive. Ella is younger than the rest of us, but just as brave. Now we're looking for the others—including John.

But so are they.

They caught Number One in Malaysia.
Number Two in England.
And Number Three in Kenya.
They caught me in New York—but I escaped.
I am Number Six.
They want to finish what they started.

But they'll have to fight us first.

Main description:

In Pittacus Lore’s The Rise of Nine, third in the New York Times bestselling I Am Number Four series, the stakes are higher than ever as John, Six, and Seven try desperately to find the rest of the Garde before it’s too late.
 
The Mogadorians who destroyed the planet Lorien continue to hunt down the Garde, the small group of Loric survivors who have taken refuge on Earth. The Garde must come together. They are Lorien and Earth’s only hope.
 
During the dangerous mission at the Mogadorian base in West Virginia, John found and rescued Nine. But even with their combined powers, special abilities known as Legacies, the pair barely escaped with their lives—and they lost Sam in the process.
 
In order to save our world and their own, John and Nine must join forces with Six and Seven who have been battling the Mogadorians in Spain, and who are now trying to locate Number Eight in India.
 
Power in numbers will save us all.

Review quote:

“A breathless page-turner of a sci-fi novel that will have readers rooting for the teen alien who must save himself, his human friends, and the planet. So, gear-up sci-fi fans, the battle for Earth is on and there’s a new kid in town!”

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“Action–packed.”

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“Lore picks up and expands on a strong premise that originated in the first novel. An intriguing potential romantic triangle brewing between John, Six, and Sam adds layers as they search for answers.”

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“Riveting.”

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“Terrifically propulsive.”

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“The action is taut, the characters are fascinating, and the fact that the teens are slowly finding one another and learning about Lorien secrets is sure to yield an impressive all-out battle down the road. This series continues to head in interesting directions.”

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“There’s genuine suspense…it’s easy to get lost in the world of the sweet teen from another planet.”

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“This is a can’t-put-it-down book.”

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PRAISE FOR THE I AM NUMBER FOUR SERIES:“Number Four is a hero for this generation.”