Book excerpt: 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. 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.Five years ago, a deadly plague killed off most of and who did it. They must head straight into danger -- to Pisgah, the heart of the Keepers' power.