Monument 14 by Emmy Laybourne

The bus ride to school takes a fateful turn in this gripping, completely engrossing apocalypse story. Boulder-sized hail and a deadly bus crash are just the beginning, and a group of kids (kindergarten through high school) are forced to persevere during an epic crisis.

Fortunately, they're trapped inside a superstore. As they find ways to be safe, stay well, and keep busy, the kids form a community - complete with romances, rivalries, and disagreements.

I loved this book, until I got to the very end: This book has NO conclusion. Perhaps they're planning on a series. Even with that plan, there needs to be some resolution at the end in order to make a stand-alone story. I needed something! Instead, there's action-action-action ... blank page.