After the 1st Wave only darkness remains, after the 2nd, it was only a lucky escape, after the 3rd, an UNlucky escape and finally after the 4th. Trust NO-one
Now it's only the last few humans left on Earth, and Cassie Sullivan is one of them. Running through the ruins of planet Earth. Scared of the sight of any other survivor. Cassie is suspicious though. Something is going on, and she is going to find out!!
I recommend this book for boys and girls aged 11+.