When the zombie apocalypse strikes without warning the fearless American bulldog Riley quickly discovered that it was up to her to keep the pack safe. Together with Yorkshire terrier Ben-Ben and former archenemy Patches the cat, Riley struggles to keep the zombies at bay while helping her favorite human, Jessie, as they travel cross-country. They are a rag-tag group of survivors, who, when pushed to the limit, realize that they are all each other has. Books 1-4 Plus bonus Short Story Pulse