Take Shelter — Chris Kreie

Several days after the aliens attacked Earth, Austin and his mom have reached an emergency shelter. But even the most prepared shelters weren't ready for an invasion like this. Overcrowding, low food rations, and limited medical supplies are just the beginning of the list of problems at this place. Austin and his friends are tempted to leave and look for somewhere better. But beyond the shelter's gates there are no guarantees. Is it worth the risk? Perfect for survival-story enthusiasts, this Attack on Earth novel is packed full of action and drama to engage reluctant readers.