Dust storm!

"Separated from their group during a sixth-graders geocaching trip, Jen Chiu and her mortal enemy, Martin Diaz, are caught in a dust storm in the desert near Las Cruces, New Mexio desert. When their van gets a flat tire in the middle of nowhere, they decide to bike off on their own to get a head start, Without warning, a blinding wall of dust and debris barrels toward them, Separated from their field trip group and in the desert alone, they will have to use all their knowledge and grit to survive, They'll also have to figure out how to save their friendship."--back cover.