Alexander is back in the electrifying conclusion to The Iron Chronicles. Refusing to return to Eton College, Alexander joins the Sky Raiders as a crewmember on the Sparrowhawk. With the baron's daughter captured by the vile Colonel Hendrix, Alexander discovers the terrifying machines created by the inner circle to enslave the world. Betrayed by his allies, but aided by a mysterious woman and her clockwork owl, the race is on from the snow-covered peaks of the Himalayas, to the shining capital of the New World. In a steam-powered Victorian world where secret societies play with destiny like a game of chess, and pirate airships prowl the sky, Alexander learns it is not gender, race, or age that determines a warrior's worth, but can he turn down becoming one of the dreaded Iron Horsemen, even if it means saving Genevieve?