Long ago, when the Dragonborn Empire of Arkhosia thrived, the flying citadel Ustraternes was undone by tiefling magic. Now, a dragonborn zealot with dreams of renewing the lost glory of his ancestors explores the ruins—and unleashes a plague of rampaging drakes on the terrified locals. The story offers PC's the chance to tame a Warwing Drake, disperse a mob, parley with undead, and battle within an alpine meadow that defies gravity.