Provost Faurious has procured an Aethervane, an astrolabe-like instrument tied to Kythri that's used to navigate manifest zones. Unfortunately for the Provost, the Riedran ship that was carrying the Aethervane across the Sea of Rage to deliver it to their agent in Regalport fell victim to piracy. The player characters are dispatched to Regalport to meet up with the Provost’s agent there and petition High Prince Rygar for more information about the stolen cargo. When the characters dock in Regalport, they meet the Provost’s contact and are ushered into a meeting with High Prince Rygar. Wishing to show his intolerance for piracy, Rygar charters one of his own ships for the party’s use as they investigate the stolen cargo. Upon arriving at the crash site of the stolen cargo, the party is set upon by a fleet of pirates known as the Wind Whisperers. When things turn sour, a new surprise reveals itself as an unnatural storm rolls in, a stolen airship at its heart. The Wind Whisperers have found a way to convert the Aethervane to serve their own purposes. Seeking aid from Rygar and House Lyrandar, the heroes chase after the pirates by sail and airship. As they do, they are bedeviled by the Chaos Fleet—strange ships sailed by an even stranger crew that are drawn to the Aethervane and the chaos it brings. In a final airborne confrontation, the party boards the rogue airship and retrieves the sought-after artifact, with a chance to salvage or sink the stolen vessel in the process…