The aeronaut's windlass

"Captain Grimm commands the merchant ship, 'Predator.' Fiercely loyal to Spire Albion, he has taken their side in the cold war with Spire Aurora, disrupting the enemy's shipping lines by attacking their cargo vessels. But when the 'Predator' is severely damaged in combat, leaving captain and crew grounded, Grimm is offered a proposition from the Spirearch of Albion--to join a team of agents on a vital mission in exchange for fully restoring Predator to its fighting glory. And even as Grimm undertakes this dangerous task, he will learn that the conflict between the Spires is merely a premonition of things to come."--Provided by publisher.