Emily and Reese are best friends who see each other only over summer vacation, where they both pass the time lazing on the beach or going to parties, hoping to pick up a summer fling. After a strange organism washes up on the local beach, the girls meet Steve and Dave, two ‘foreign-exchange students,’ their whole summer turns upside down. Steve and Dave are strange, giving Emily and Reese the idea that they don’t really know how to be human. It turns out that Steve and Dave are really alien organisms called up from the depths of the ocean and manifested in human form. Their goal? To try and stop the threat of increasing global pollution, which threatens to destroy their ocean home. Blake Nelson’s novel is an amusing look at a very real and frightening problem.