After the sickness known as the Doom destroyed civilization, magick has become commonplace, and Fallon Swift has spent her young years learning its ways. Fallon cannot live in peace until she frees those who have been preyed upon by the government or the fanatical Purity Warriors, endlessly hunted or locked up in laboratories, brutalized for years on end. She is determined to save even those who have been complicit with this evil out of fear or weakness...

Discovering a way to build a super-computer using stolen fairy technology, young criminal mastermind Artemis sets out to blackmail a Chicago businessman but runs into a trap that leaves Butler mortally injured.