Killer Aliens vs. Badass Teens! (The Water Bear Cycle, #1)

Mari Cruz and her friends are bored to death with their town in the New Mexico desert. When an alien Arbitrator shows up to decide the fate of the Earth, things get a little more interesting. It's a good thing school's almost out, because the four girls have a wild summer in store for them.

Mari and her gang of misfits innocently upload a photo of a funny-looking dog they find at the local Animal Shelter. Turns out they've blown the cover of an alien who's hiding from a race of bloodthirsty ...