The Sky Folk are coming together for their Centennial meeting. The Ethereal, the Fairy, and the Avian are meeting at Stormhedge, or above it really. Something dark is waiting there for them.
When Mount Agni erupted thirty years ago, no one ever knew that the shattered lands around it would become the in-between the World and the Great Under Depths. And why does that crazy old sorcerer want to go there?