Aliens are among us. And humanity's only hope just happens to carry pom-poms. Laura Clark thought she was just your average college freshman-until the day she saw a cheerleader on a skateboard get into a superhuman brawl with a lightning-wielding stranger in a trenchcoat. And the weirdest thing of all? Nobody else saw it happen. Nobody, that is, except the beautiful but standoffish Shailene, one of the mysterious (and possibly...