Forgotten Crown

About 10000 years ago, when Nirrula was a place where primal beings still ruled the lands, the demons just started grouping up and making clans to have a chance at survival. There was one demon who rose up above them all. Der’kal a demon who proclaimed himself as the King of Nirrula. Wearing a molten crown that gave him the powers of a demigod he ruled over others with an iron fist. Anyone daring enough to disobey his orders were sentenced to a duel to the death with the king himself. Der’kal showed his power was unmatched so the others followed him. He swore to make every clan bow to him. Der’kal waged war on every clan he came upon, giving the chance to live only to those who pledged allegiance to him. Upon gaining control of over 20 clans he declared for a castle to be built to show his superiority over these lands. When the castle was finished he called his 8 deadliest warriors to meet up in the main hall. To each of them he gave a weapon made with his powers, each made to unlock their true abilities. And a saber for himself, so sharp it could cut through obsidian as if it was just swinging at air but also so tough nothing could break it. Once the castle was complete they marched further and left s bloodbath in their path some even from the kings own army. The weak had no place in his clan, you either died a weakling or kept moving forward becoming stronger with every encounter. Der’kal now had around 5000 demons under his control, and decided to shift his focus on the beasts roaming his lands. He sent the 8 warriors on this task an soon there would be little to no worries about beasts in his territory. During all this a small group of demons were planning on how to take him down from the shadows. Plan was to let one challenge him to a duel and then during the midst of battle to rain arrows on the king. But when the challenge was proposed Der’kal unleashed his power growing flaming wings, two more arms and flaming rings around him he sliced the betrayer in half turning him instantly to ash after one swing from his saber. This display of difference in power just showed why he was king. One day on a march looking for clans he came upon a glorious temple on a hilltop. Inside was no living being except for a single beacon of light. Going closer to it he was greeted by a creature of pure fire, with a figure of a demon. It simply asked to not be disturbed by his march. Upon seeing how the king was naming any reason to take these lands the creature summoned a beam of white fire down smashing through the roof and killing half of his men. Seeing that Der’kal instantly apologized and promised to never walk on these lands again. To signify his promise he wrote it on a wall, for is he to ever return he can't lie to it. During the next decade he had conquered more clans and bestowed upon his followers “the Kings Gift” an enhancement spell making everyone feel like in their prime of life. However with such power comes a cost, his body has been starting to become weaker for the past 2 years. The effect could be stopped if Der’kal would take off the crown but he feared that as soon as he did, he would be assassinated. Over the next months his body withered away more and more to the point where his bones could be easily seen. When his body was fully withered away and the crown no longer had a wearer all of Der’kals followers turned to ash as he gave them the Kings Gift. Nothing except the buildings and weapons were left of them. The crown and the 9 weapons have been lost to time over the millennia even to this day. With all his people gone there was no one who knew of his accomplishments. It is said  that the one who wears the crown will have those same powers as he did. But even if people started searching for it, they couldn't find anything as most of everything has been lost to time. Even the castle has not been found yet, maybe one day there will be another demigod warmonger on the loose.