Great Huan Dynasty, Nine Dragons Imperial Capital.
After discussing the Nine Heavens Ten Earths God-Refining Formation with the Great Huan generals stationed in the Marshall Islands and more than a dozen titans of the Jianghu, Huan Emperor Jian Shang returned to the Nine Dragons Imperial Capital. He intended to hold the Great Huan Dynasty's enfeoffment ceremony while the formation's foundations were being forged, a ceremony that would steady the people's hearts and strengthen the dynasty's civil and military officials as a whole.
As for the Nine Heavens Ten Earths God-Refining Formation, Old Man Tianyi's description had been fairly simple, but putting it into practice was extraordinarily difficult.
First, they had to modify the Celestial Cycle Star-Dipper Formation, relocating its core to the largest volcanic island in the Marshall Islands to make it easier to draw upon subterranean fire and increase its power. They also had to cut fire channels and build ritual platforms on the various volcanic islands. This undertaking alone demanded incalculable manpower, resources, and money.
Second, they had to merge the Celestial Cycle Star-Dipper Formation and the Nine Heavens Ten Earths God-Refining Formation, two extraordinary formations that also had to align with the geography of the Marshall Islands. Put simply, the Nine Heavens Ten Earths God-Refining Formation had to be divided into three main components: the Nine Heavens, the Ten Earths, and God-Refining. The Nine Heavens drew upon the power of the stars throughout the celestial cycle, while the Ten Earths drew upon the power of the earth veins throughout that cycle. The "refining" in God-Refining required sufficient firepower-the firepower of the many volcanic islands. These three components required meticulous coordination. Channeling star power, scouring with earth power, and drawing in firepower all required exceedingly complex pathways and exquisite control over those forces, consuming considerable effort and materials.