9174. Chapter 9174 The Secret of Lingcheng 1

"Yes." The two of them took the order and stood up and retreated.

After they left, Tong Yan said, "Little brother, follow me, I will take you to a place."

Hearing this, Leng Xuan was curious and hurriedly followed. Not long after, they arrived outside Lin Hao's former residence. Looking at the dilapidated mansion, Tong Yan sighed and walked in.

Under the leadership of Tong Yan, the group soon came to a bedroom. Judging from the furnishings in the bedroom, this bedroom should be Lin Hao's residence. In a corner of the bedroom, Tong Yan knocked on the wall lightly. Suddenly, there was a sound of "click", and a secret door opened and appeared in front of everyone.

Through the secret passage, Leng Xuan was surprised to find that this secret passage leading to the underground was actually built with red soil. Such a long secret passage would consume a lot of red soil. In Huangquan, the value of red soil is second only to the power of souls, and it is a very important resource. However, for now, Leng Xuan's understanding of red soil is limited to its ability to condense the body. As for other effects of red soil, he is not very clear.

Along the secret passage, the four people walked dozens of meters and finally arrived at the end of the secret passage. Leng Xuan estimated that the place where he is now should be about 20 meters from the ground. Coming out of the secret passage, both Leng Xuan and Yan Chengfeng were shocked by the scene in front of them.

In this underground, as far as the eye can see, there are mountains of red soil, which is difficult to describe in quantity. No wonder Lin Hao said that the resources in Lingcheng are inexhaustible. Leng Xuan secretly marveled that the resources hidden underground are too huge.

Without giving them too much time to be shocked, Tong Yan continued to go deeper inside. Seeing this, Leng Xuan and others hurriedly followed, fearing that they would miss something.

Not long after, a river appeared in front of Leng Xuan. In the river, the yin air was gloomy, and the sound of ghosts crying came from it from time to time. Looking at the river, Leng Xuan nodded secretly. Sure enough, this river was the same as the one he saw when he first came to Huangquan, and all the souls flowing in it were lonely souls.

This river runs through the bottom of Lingcheng, from east to west, and you can't see the end at a glance. After Leng Xuan looked at it for a while, his eyes were fixed on the side of the river. There, there was a huge skeleton, which seemed to be the skeleton of some strange beast. One end of the skeleton was deep in the river, and the other end was connected to the ground. Those souls passing through the river were absorbed by the skeleton every time they passed through the skeleton, and then spit out and put back into the river.

However, in the process of sucking and spitting, Leng Xuan was surprised to find that those souls gradually became transparent, as if all the soul power in their bodies had been absorbed.

And in the center of the skeleton, there was a bead. Every time a soul passed through it, the color of the bead became brighter and more dazzling.

"Little brother, this is Lin Hao's secret." Tong Yan pointed at the bead and said.

Leng Xuan and Yan Chengfeng walked closer, looked at the bead carefully, and asked curiously: "What is this thing?"

"That is the inner elixir, which has a miraculous effect and can automatically absorb the soul power in the soul. The souls in this river will have some impurities, but this inner elixir can filter out the impurities and then store the pure soul power for others to practice.