Having finally returned to New York, Elizabeth finds herself still struggling to come to terms with Toad's death. Haunted everywhere she goes by reminders of her dead family, she finds refuge in a surprising place. But when people start dropping dead in the streets, Elizabeth and her new friends face the horrifying possibility that the zombie threat is far from over.

Meanwhile, Thomas makes an important decision. Finding nothing worth staying for in New York, he decides that it's finally time to go and search for his missing sister. Can he persuade Elizabeth to go with him? What dangers will he find once he hits the road? And will he finally find Martha waiting for him at the farm?

Days 195 to 202 is the ninth book in the Mass Extinction Event series. The book ends with a cliffhanger, and readers are advised to start with the first part of the series.