A tripod cauldron was a vessel the ancestors of Huaxia used to cook their food.
Since ancient times, food had been the people's heaven. Only by eating could they live, and only by living could they have anything else.
Many cauldrons had been cast during the era of the Three Sovereigns and Five Emperors. The most famous were Yu the Great's Nine Tripods.
Yellow Emperor Xuanyuan had also cast cauldrons, and several stood in his mausoleum. The Nine-Doubt Cauldron was the smallest of them, though their functions were largely alike.
The key to the Nine-Doubt Cauldron's standing alongside the Haotian Mirror as one of the cosmic treasures lay not in the cauldron itself, but in the Chaos Core within it. Without the Chaos Core, it remained an extraordinary treasure of the immortals, but its power fell by more than a single tier.
Shi Feiyang had first absorbed the Chaos Core into his own Chaos Dragon Pearl. Now he melted down the cauldron and incorporated it into the surrounding furnace.
After refining the Nine-Doubt Cauldron, Shi Feiyang brought out Yu's Cauldron and melted it into the furnace as well.
During the process, Shi Feiyang added Five Metals Essence, magnetic primordial true qi, Nine-Star Meteoric Iron... The immense Mountain Furnace began to change shape, its height, width, external properties, and everything else transforming.
After a full circumcelestial cycle, it finally became an enormous Three Powers Eight Trigrams Furnace over a hundred zhang tall.
Its full height was one hundred and eight zhang. Its surface looked like metal coated with glaze, yet also resembled jade. It was divided into three tiers, the smallest at the top and the largest at the bottom. Numerous symbols originally belonging to the Nine-Doubt Cauldron and Yu's Cauldron covered it, with Yu the Great's Golden Talisman on the