The second half of the 5th wave was focusing on a theme of how resilient people can be and how just a sliver of hope can go a long way. This is shown in the main character, Cassie‘s persistence to continue to fight for the human race. Once the main character, Cassie, finds out Evan Walker who is another important character, is actually the one who shot her and that he is actually an alien,the whole book is flipped on its head.

The 5th wave is a post apocalyptical world where humans are no longer at the top of the food chain. Through the first four waves of an alien force‘s deadly attack ninety nine percent of the worlds population is gone and now Cassie has to find a way to survive. This book is told in first person but the person who‘s viewpoint it is in swaps back and forth. If I could compare this book to another book I would choose contagion by Teri Terry.