Richard Harland’s Liberator begins three months after its predecessor, Worldshaker (2009), left off. The optimism and exuberance that marked the success of the revolution has dimmed as the inhabitants of the newly renamed Liberator struggle with the realities of running the mobile juggernaut. A saboteur breeds havoc and mistrust between the governing council of Filthies and the remaining Upper Decks folk (the Swanks), and conflicting factions vie for control. Meanwhile, the Liberator is running out of coal, and the only place where the revolutionaries can replenish their stock exposes them to direct conflict with the remaining Imperialist juggernauts.