The fifth book of the #1 New York Times bestselling I Am Number Four series

The Garde have suffered an unbearable loss. Number Five has betrayed them. Eight is gone forever. Ella has been kidnapped. The others are now scattered.

In Chicago, John makes the unlikeliest of allies: a Mogadorian named Adam, who has switched sides. Adam knows the Mogs secrets, and he knows where to hit them: their command base near Washington, DC. But during the assault, John learns he and the Garde might be too late. The Mogadorians have commenced their ultimate invasion...

The seventh and final book in the #1 New York Times bestselling I Am Number Four series brings the Garde's story to a breathtaking conclusion.

The Garde didn't start this war, but they'll do whatever it takes to end it once and for all. . . .

The Mogadorians have invaded Earth and the Garde are all that stand in the way, but they'll need an army of their own to win this fight. They've teamed up with the US military, but it might not be enough. The Garde need reinforcements, and they've found them in the most unexpected place. Teenagers from across the...