Castle in the Clouds

The Land of Azurth 5e campaign continued last night, with the party returning from crystalline Mount Geegaw on just one of the flying swanboats. After stopping for the night to rest (and heal), they are perhaps only half a day from Riverton when their vessel is buffeted by an unnatural wind. A whirlwind grips Waylon the Frogling, and a leering face forms out of mists to taunt him. The group manages to free Waylon, but a fierce gust tosses Dagmar, Shae, and Kairon from the boat. The wind seems to catch them, and its voice extorts their cooperation in return for not letting them drop.

The living gale introduces himself as Zykloon. He carries their ship even higher into the air to a cloud with a strange castle on it (something more like a sci-fi amalgam of futurism and brutalism than anything the PCs have seen before). He demands the crystal they took from Mortzengersturm--the magical Whim Wham stone. They reluctantly agree, but do manage to capture its reflection in the magic mirror the Princess Viola gave them before turning it over.

The dishonorable Zykloon smashes the front of their boat, stranding them, and flies off laughing. Luckily, the party finds the cloud is spongy but solid enough to walk on, so they go looking for another way back to the surface.

They find a dock with a giant-sized airship, and a number of man-sized, blue-skinned Cloud Folk. The leader of the Cloud Folk (Prince Thunderhead) explains that the Zykloon, a sorcerous giant, has been forcing them to raid the surface for captives and riches while holding their king, Cumulo, and other important Cloud Folk hostage. The Prince and his people are honor-bound not to attack Zykloon, but if the party could free their people they would share the wealth of Zykloon's castle with them and return them to the surface.

The party agrees. Thunderhead gives them healing gels and a medallion which will show the other Cloud Folk they are working together. They also are provided with a guide they meet at the gates of the castle: a young and feckless Cloud Boy named Nimbus.

Nimbus leads them through the castle's first floor to the dungeon where they free a number of prisoners: five Cloud Folk including the king, a frogling thief named Woggin, two merchants and a peasant farmer.

The poor farmer is killed during their escape by a bestial boggle (as the Cloud Folk call them) guard. Soon, the party is locked in a pitch battle with more of the creatures...