The mighty Craniopolis falls. But a darker shadow takes its place.
A shocking revelation rocks the survivors to the core. With everything at stake, the factions unite, but motives are suspect and mistrust runs deep among former foes. Rumors surface of a murderer at large within the city and Derry’s leadership as head of the new Council is further plagued when the sweeps resume and the Undergrounders are forced to restart the toxic Superconductor. Aided by the mysterious archer, Lou, Derry devises a last-ditch plan to pull off the unthinkable and strike at the heart of the sweepers' regime. But, there’s more at stake than Derry realizes, and the forces she encounters are even more deadly than she could have imagined, forcing love to make the ultimate sacrifice.
Locked in a gripping race against time, The Undergrounders’ final stand unleashes a chaos that can only end in death or victory.