This is book four in the eight-part Terraway series, which is based in Filipino folklore. Running off with Captain Finn to deliver a portion of the stone to Silo seemed to October like the perfect way to get some breathing from her two Reapers, but she soon learns how horrible life without them can be. Despite her best efforts to slip through Silo unnoticed, October soon finds herself swept up in a war against an army that turns out to be worse than her greatest nightmares. She's determined to hold her ground, until a budding friendship with the uncaring and violent Captain Finn turns her world upside-down.