United as One

The epic conclusion to the New York Times bestselling I Am Number Four series!

The Mogadorian invasion has come to Earth, and they have all but won the battle for our planet. Their warships loom over our most populous cities—like New York City, Tokyo, Moscow, Beijing, and New Delhi—and no army will risk making a move against them. The Garde are all that stand in their way . . . but they are no longer alone in this fight. Human teens from across the globe, like John Smith’s best f…