Five years ago, a deadly plague killed off most of the world's population - at least all the grown-ups. Only a small group of children survived. So they formed a family and managed on their own. Then they came across some adults who had survived - the Keepers. But no adults were better than these adults.
In this riveting conclusion to the Fire-us trilogy, the family is once again on its own - with a mission. They must find out why their world was destroyed and who did it. They must head straight into danger - to Pisgah, the heart of the Keepers' power.