A young fighter who is trained in combat against robots finds herself part of a fight against a brutal rebellion in her city Tamzin Pook is a fighter in the Amusement Arcade, where she does battle with Revenants - reanimated brains within armoured engine bodies - and is never sure whether she'll survive another day.
In the wheeled city of Thorbury, a rebel faction has brutally seized control and it will take someone skilled at fighting revenants to save teh day...enter Tamzin.
Along with an oddball gang of mercenaries and a teacher named Miss Torpenhow, she must outwit a pair of assassins to secure a peaceful future.