Praying for Grace: The Grace Series, Book 5 (Unabridged‪)‬

Trying to survive in a land ruled by the dead, Zoe finds herself more alone than ever after the death of her lover. Time goes by, and life becomes even more intolerable. Never sure of who she can trust and her ability to sense the dead drastically altered, she is forced to face some major realities as what remains of the group of survivors moves to higher ground. 

This is audiobook five of the Grace Series.