Li Yao picked up a twig and wrote Nether World on the moss. He explained, "On the Gloomy Wind Islands at the North Pole of the Blood Demon Sector, in his secret base named Nether World, Elder Nether Spring once caged the experts of both human beings and demons—including Suo Chaolong, Han Tuhu, the Fire Ant King—for the experiments of the Demon God Virus. But I snuck into the base, investigated the surroundings with Neltharion, and planted bombs. In the end, I demolished the Nether World, which was a major blow for him.
"During the battle, I observed Elder Nether Spring at a close distance through Neltharion multiple times. Although he didn't perceive it on the spot, he must've noticed the existence of such a piece of magical equipment later and remembered the features of Neltharion's spiritual waves!
