Even though Penny's stubborn attitude and free spirit constantly get her into trouble. Everyone learns not to underestimate her. Having spent her whole life in the foster system, her life was already challenging enough, but now with a zombie virus taking over the world and trauma and secrets taking over her mind. She must learn who she can trust on her journey of survival.
I may be zombie'd out. Characters from series to series blend together, you get the "good soldier", young people searching for family, certain misfits that find each other, evil survivors and a corrupt army. Some of the characters in this, while likeable, just don't ring true to circumstance. That said, this is a good solid zombie read.