The Power of Six by Pittacus Lore (2011, Hardcover)

Synopsis
Alien teens on the run with numerous enemies in hot pursuit, including the FBI, must not only cope with evading capture, but must find a way to meet with members of their own kind so they can join forces. In this fast-paced, adventurous sequel to I AM NUMBER FOUR, John, Sam, and Six are desperate to keep one step ahead from the evil Mogadorians. The narrative alternates between John Smith, Number Four, and the newly introduced Number Seven, a girl with a very powerful Legacy named Mariana. This is the second book in the bestselling Lorien Legacies series by James Frey.

Key Details
Author:	Pittacus Lore
Language:	English
Publisher:	HarperCollins Children's Books
Series:	Lorien Legacies
Format:	Hardcover
ISBN-10:	0061974552
ISBN-13:	9780061974557

Size
Length:	406 pages
Thickness:	1.2 in
Weight:	16.8 oz

Publisher's Note

I've seen him on the news. Followed the stories about what happened in Ohio. John Smith, out there, on the run. To the world, he's a mystery. But to me . . . he's one of us.

Nine of us came here, but sometimes I wonder if time has changed us—if we all still believe in our mission. How can I know? There are six of us left. We're hiding, blending in, avoiding contact with one another . . . but our Legacies are developing, and soon we'll be equipped to fight. Is John Number Four, and is his appearance the sign I've been waiting for? And what about Number Five and Six? Could one of them be the raven-haired girl with the stormy eyes from my dreams? The girl with powers that are beyond anything I could ever imagine? The girl who may be strong enough to bring the six of us together?

They caught Number One in Malaysia.
Number Two in England.
And Number Three in Kenya.
They tried to catch Number Four in Ohio—and failed.

I am Number Seven. One of six still alive.

And I'm ready to fight.