Imagine being 16 years old, alone and hiding in the wilderness with no means of communication and forced to trust no one, and not even sure of where to go or what you will find when you get there.
Sixteen year old Cassie might possibly the last human being on earth, having survived the first four "waves" of destruction intended to eliminate all of civilization on planet earth. "The Others" really want the planet for themselves. Which is why is told to "trust no one", not even those who may look like human beings are really are not.
She knows her parents are dead, but she refuses to believe that her little brother is not alive, and she searches for him among the conflagration, the emptiness and the loneliness and loss she experiences.
I found this novel to be addictive—you don't have to love sci-fi to keep the pages turning. It's a masterpiece of tension: there is heart-pounding action and gut-wrenching decisions to be made. There are characters that Cassie and the reader are just not sure of. I found this to be an exciting new read in teen fiction.