The Four Sky Serpents

Flying high above the continent of Acarn, never seeming to land, are four dragons. They are wingless and have elongated bodies, measuring about half a kilometer. They have never been seen together. They have never acted with hostility but their very presence creates powerful magical effects that can be dangerous.
One such dragon is Orion the Dreamer. It is believed that it sometimes stops it's airborne journey to slumber for years or even decades. When it does, it surround itself with a relatively small stationary hurricane. It is said that at the heart of the hurricane, Orion wraps itself in a large floating landmass. These islands and their inhabitants are reflections of the dreams of Orion. Some claim to have visited Orion's dream island but they could not bring back anything other than the memories they made there.