Cloud Dwarves

There is a Twist in the Myth

The tale of the Cloud Dwarves is one told to children when they did a thing which had bad results like a burned dinner or the death of a pet. It is a story to be honourable, to take care, be careful in what you are doing - prepping dinner, hammering away in the smithy, playing an instrument - and be considerate and compassionate.
So lets hear the story from when the clans weren't divided and just had themselves to tell the tales of foreign dwarves.

There was a time when the Dwarves were one. Were the only things to worry about were Orcs and Dragons. Sometimes both, sometimes Dragonborn, sometimes Elves and sometimes on really rare occasions all of it combined.
But there were a Dwarf who was thinking of different things. Of having a mine inside a mountain and getting rid of the shell to have a sweet castle made out of the mountain. A very complicated undertaking, but they thought it was worth it.
So they gathered friends and followers who wanted to try it. They searched for a lonely mountain somewhere in Koria and started to dig and dig and dig. At first they undermined the mountain and brought up a lot of valuable minerals, created artefacts and dug upwards to flesh out the castle.
After decades of digging and building they were ready to get rid of the outer shell of the mountain. The rubble should be used as material for walls and towers, just in case.
But they weren't getting to that. They saw that their mountain breached through the clouds which were white and glittering. So they stopped their work on the outer shell and crafted supporting pillars to hold platforms. They wanted to know what was beyond the clouds.
As they breached the white ceiling, they noticed that they could stand on the clouds. And even the most frightened Dwarves were coming to take a look, leaving the mountain behind, an empty husk of former glory.
The last Dwarf attempts the climb and as they reached the clouds, the white fluffy surface closed and trapped them in the purest white, sunshine, snow and despair. Because the clouds were not made out of diamond and were mean to surface dwellers, meaner even to underground dwellers like the Dwarves.
The Dwarves try to get back to the world they know. With hammer, axe and steel and sometimes larger hammers and explosives. Everytime you hear a roaring thunder or hear a thunderstorm, you know that the Cloud Dwarves are trying to escape their fluffy prison once more.