I really liked this book because of the way the author wrote it. What happens is that when the main character, Tamara is taking a "shortcut" with her friend, Marshall, he gets beat up by another guy called Chad. In order to defend Marshall, Tamara grabs this weird looking mud and throws it at Chad's face. The next day, Chad goes missing, and Tamara has these weird little bumps on her hand which are actually single celled organisms that were mutated so they could survive in oxygen. They eventually spread and they were very deadly. I thought that this book was a really great book and I would love to read it again.