It is 1897 and the skies are haunted by mysterious airships and unfathomable secrets. Tasked with hunting down these strange vehicles of the air and determining their origin and intent, two U.S. government agents toil under unusual conditions to supply their shadowy superiors with information. But that information proves to be as elusive as the airships themselves. Ride with Agents Valiantine and Cabot across the Midwest as they encounter reports of strange lights, phantom soldiers, unreliable witnesses, and the ultimate source of their airborne prey. They are the Airship Hunters, and they cannot be waylaid from their path to uncover the greatest mystery of them all.