To the aristocratic denizens of Gullhaven, Helium is the almost priceless commodity used to lift their airships above the smothering air of the city. To Baron Jasper Brundheim, it is his livelihood. That is until Parliament frames him and seizes his family's Helium mine for their own. On the run, the young noble must join with other rebels and fight to clear his name. They must flee their beloved city, evade brutal gunsword-wielding soldiers, and...