Shi Feiyang had Bai Lingzi compile a register of every member of Demonkind under his command, recording their names, original forms, cultivation levels, and other details.
Paper could not be used underwater, so they used Merfolk Silk instead.
Merfolk could spin silk and were skilled weavers. Shi Feiyang found a small basin and had the Merfolk King settle there with his people. "From now on, this place will be called Divine Merfolk Valley."
He also had the Monsters gather huge stones and colorful shells to help the Merfolk build homes. Within a few days, they had constructed a simple palace.
Underwater buildings required entirely different considerations from those on land. On land, the main concern was resisting gravity. Seawater provided buoyancy, so the foundations and pillars served chiefly to keep the palace from being swept away by the currents, rather than supporting it against collapse.
The palace interior measured over ten zhang in both length and width. Its base and four walls were built from stone, while its roof, doors, and windows were fashioned from shells bonded together. The Merfolk then spun silk and wove three layers of netting through it, making everything completely secure.
He had the Merfolk help Bai Lingzi complete the register. First they wove merfolk silk into scrolls, then embroidered the writing onto them. Bai Lingzi directed the work, while they carried it out.
Shi Feiyang wanted only the lowest-quality Merfolk Silk. The Merfolk all possessed some magical power, so the register scrolls were produced fairly quickly. In less than a month, they had completed five scrolls, listing a total Aquatic Beings population of four thousand six hundred and fifty-one.
During this time, Shi Feiyang learned much more about the Monsters. He sorted them into five major divisions: fish and snakes went into the Jade-Scale Division;