Wow! I heard good things but this book was great! I love me suspenseful, science fiction, mysteries! A great gateway book or teen read-a-like for Michael Crichton. It's not space SciFi, but biological. It starts out with a mysterious virus that is rapidly aging the infected in a posh college. Soon all staff are dead and people in hazmat suits are not letting the students leave! Then the book just gets better as a group tries to find out what's going on and it turns out to be something so much more. A great book!