The Fate of Ten by Pittacus Lore

The war for Earth has begun.

The Mogadorians have invaded. Cities burn, lives crumble, and the last of the Garde are the planet’s only hope. Number Four and his allies must fight not only for humanity but for their survival as new powers awaken — and old enemies return stronger than ever.

As the lines between friend and foe blur, one truth becomes clear: not everyone will make it out alive.

Explosive, fast-paced, and emotionally charged, The Fate of Ten delivers all the heart-stopping action and impossible choices that define the I Am Number Four series.