Long before the sky fell silent, Chrissy Fey was a girl who never quite fit in. People felt strange things around her, and she kept her distance from everyone. Years later she appeared to be an ordinary woman, but the child inside her had never gone away. Then came the Day of Decimation, when the streets of Downtown Los Angeles were torn apart, and something dormant inside her finally woke. It gave her purpose, a calling and a new name. Dementia would answer when history demanded it. Across the wider universe, another story unfolds beneath the surface of the United Lands of Earth, where colossal machines called Guardians rise from scaffolding and officials speak of protecting humanity from impurity.