The crew of the S.S. Beatrix returns for an epic steampunk tale of airships, super robots, political plots and evil cultists. When genius inventor and revolutionary Desmond Ellington is kidnapped by the Empire of Rabasa to complete a colossal weapon, Captain Dunbar, Josie, Hooper, and two new commrades--Dr. Nella Chatterjee and Mackie MacMillan--embark on a journey of danger and intrigue to find