A blonde beauty queen, missing children, six suspicious deaths, and the twisted Mormon doomsday writings of her fifth husband are only the beginning of a tragic crime saga that gripped Americans and instigated frantic searches all over the country.

It all started when Lori Vallow met Chad Daybell at a doomsday prepper event. Their story grew like a wildfire that creates its own weather, and what happened next will shock even the most experienced true crime reader.

Clinging to and manipulating one another, Lori Vallow and Chad Daybell believed the return of Jesus Christ was imminent and that God had chosen them to lead the 144,000 and usher in the new millennium. When the people closest to them began dying, it became clear they would stop at nothing to be together and fulfill their mission. When the bodies of Lori's missing children--J.J. and Tylee--were discovered in Chad's backyard, the strange and complex story of their fundamentalist Mormon beliefs were revealed in all their true horror.

Author Lori Hellis, a retired criminal lawyer, had just moved to Arizona when news of J.J. and Tylee's disappearance broke, and there were reports about these missing children that linked them to a neighboring community. She began to follow the case closely, trying to understand this perfect storm of people and circumstances that culminated in the death of innocents. In Children of Darkness and Light, Hellis digs deep into the investigation, trial, and verdict to craft a haunting narrative that illuminates one of the most confounding crimes in recent memory.