Flight

Storme Tate's whole world revolves around keeping her younger brother, Colton, safe. That would be easy-- if there wasn't an apocolypse going on. One second she's in the park with her family, the next on the run, with no idea where her parents are. Suddenly it's angels vs. demons and human possession. Humans are fresh meat for the demons, and rapidly turning on each other in fear and confusion. In the midst of the chaos, Storme and Colton don't matter to anyone but each other.

And their guardian angel.