"Cassie Sullivan, the survivor of an alien invasion, must rescue her young brother from the enemy with help from a boy who may be one of them"--Provided by publisher of original edition.

The enemy is Other. The enemy is us. They're down here, they're up there, they're nowhere. They want the Earth, they want us to have it. They came to wipe us out, they came to save us. But beneath these riddles lies one truth: Cassie has been betrayed. So has Ringer. Zombie. Nugget. And all 7.5 billion people who used to live on our planet. Betrayed first by the Others, and now by ourselves. In these last days, Earth's remaining survivors will need...

The riveting follow-up to the New York Times bestselling The 5th Wave, hailed by Justin Cronin as “wildly entertaining.”
 
How do you rid the Earth of seven billion humans? Rid the humans of their humanity.
Surviving the first four waves was nearly impossible. Now Cassie Sullivan finds herself in a new world, a world in which the fundamental trust that binds us together is gone. As the 5th...