The Final Warning Maximum Ride Series, Book 4.

Hold on tight for the wildest ride yet as Max and the flock take on global warming-Earth's biggest threat-in this #1 New York Times bestselling series. Maximum Ride and the other members of the flock are just like ordinary kids-only they have wings and can fly. It seems like a dream come true...until they're hunted by the world's nastiest villains. Max returns in a chilling adventure unlike any other. Safe havens for the six highly-sought-after...