Suddenly, Xiaoyuan and I saw that the rope in Lao Cao's hand was like a living volatile poisonous snake. It kept twisting in the water and "swimming" towards the bottom of the pool... One end of his hand was kept gently placing it forward. "This pool is indeed very deep! I have placed it for 14 or 5 meters long, but I haven't even touched the bottom yet? Maybe the rope is not long enough."

Lao Cao seemed a little surprised. I knew that his phoenix rope looked short and could be carried easily around his waist. But in fact, it could be placed at most twenty meters long! It was very magical. But if the depth of this pool exceeded twenty meters, it would probably be useless... What is the concept of twenty meters deep? It is almost equivalent to stuffing a seven-story building! So I could only pray silently in my heart, hoping that the depth of this pool would not be so abnormal. Even if there are cracks connected to underground rock formations or other small gaps in the mountain below, at least there is a bottom that allows us to find out the situation. What is hidden in the "Huangquan Pool" gathered in the three Yins? I have a strong intuition that there must be some strange thing here! Finally... Lao Cao suddenly said in surprise. "The rope is at the bottom! The depth of this Huangquan Pool is about seventeen meters."

"That's great!"

I was also excited and looked at the pool with my eyes intently. Lao Cao's movements did not stop. He continued to put about two meters in the pool before stopping. He grabbed the end of the last meter of rope and said with a smile. "Fortunately, I left three meters in length, otherwise I would not be able to deal with the situation."

Think about it, if the length of the rope is exactly the same as the depth of the pool, it can only be used as a detection tool. It must have an extra length to tie it at the bottom of the water and roll things up. So Lao Cao slowly closed his eyes. He relied entirely on his mental perception, and his mind controlled the front end of the rope at the bottom of the pool that was more than ten meters deep. He wandered carefully like a snake at the bottom of the pool, looking for any strange and evil things... Xiaoyuan and I were holding our breath beside us, and we watched Lao Cao look around so that we would not suddenly rush out some evil monsters to attack them-although those human-shaped spider monsters have been ours.

It was completely destroyed, but it is not an exaggeration to be cautious in such an evil place! Fortunately, everything went smoothly, and no other evil spirits appeared. Perhaps the evil cultivator who created this ghost place felt that it had hidden so deep underground, and there were more than a dozen human-shaped spider monsters. In addition, the Yellow Spring Pond itself is very deep, let alone ordinary people, ordinary monks are helpless, so there is no other defense. Suddenly! Old Cao opened his eyes suddenly, and a hint of joy flashed across his face. "Here! I can feel that a supernatural thing was touched at the front of the rope. It was a very strange force."

I asked quickly, "Living or dead? Can I tie it up and drag it up?"

Lao Cao shook his head. "I can't confirm yet, let me try it first... Hey, wait! It's so easy? And it seems to be very small. It's a bit strange."

He seemed a little unbelievable. It was probably that the front end of the rope that reached the bottom of the pool had successfully wrapped the supernatural object! Xiaoyuan flapped his wings twice and stared at the water excitedly. "If you entangle, pull it, old man Cao! Hurry up and pull that thing out of the water to see what it was. Let a certain evil cultivator use such great energy to tinker with so many strange things deep underground."

I patted the fat bird's head with a snap. "Don't urge it! Let Lao Cao calm down the ropes, just wait patiently. It takes some time to pull the pool up at a 17-meter-deep depth. And you have to be careful whether there will be danger when the thing comes out of water."

Xiaoyuan muttered impatiently. "I know, I know, I'm so rude. Also, if you hit me in the head, you will be at your own risk. I will never finish this with you!"

I laughed, too lazy to pay attention to it. This stupid bird has said this "threatening" word countless times. Anyway, I always have my left ear and my right ear... We didn't say anything anymore, and there was silence around me. Only the sound of Lao Cao pulling a rope from the water. After a while, he reminded me. "There is two meters left and the water is about to come out! Be careful."

Xiaoyuan and I were immediately ready for battle, and at the same time, our curiosity had reached its peak. "Give me a water! Huh, ha!"

Old Cao exhaled, took a few steps back, and finally shook his wrist and pulled it up. He pulled out the thing tied by the phoenix rope from the "Huangquan Water Pool" in front of him... rattle! A small yellow water splash suddenly splashed on the turbid water surface - it seemed to be very small. Then we saw a black thing appearing in the air in front of us. Then, the three of us, including Old Cao, were a little unbelievable. Because the rope was tied up and bound, there was a small black iron plate the size of a palm! Xiaoyuan was the first to shout. "What's the situation? The strange thing under the pool... is a broken iron plate?"

The force on Lao Cao's hand was loosened and gently landed on the ground with a rope. A "boom" sound of a heavy object falling to the ground. I moved my heart slightly and realized this unusual scene. Lao Cao's skills in using the phoenix rope were superb. He was able to remove the black iron plates that were just a punch larger than the palm, and they should have fallen on the ground. But it still made a muffled sound of a heavy object falling to the ground! Sure enough, the next moment, Lao Cao said in a surprise tone. "This thing is not heavy! It's not like ordinary metal. I have carried a coffin all year round and have a very keen perception of weight. When I just rolled this thing up and pulled it up, I felt something was wrong. And once I left the Yellow Springs Pool, the weight suddenly increased after it came out of the water."

It is probably because I didn't expect that the weight would increase sharply after the water was discharged, so Lao Cao was not able to remove the force enough. After the iron plate landed, it made a "boom" sound of falling. Lao Cao dragged the iron plate not far away in front of him, and approached his feet. Xiaoyuan and I also leaned over to observe carefully. It was indeed a black metal brand, with a long diamond shape. The front end was a triangle, which was large on the top and small on the bottom. "Damn it, can I? I created so many complex and weird things just for such a broken brand?"

Xiaoyuan widened its bird's eyes, feeling both incredible and a little disgusted. Seeing that there was no danger, Lao Cao untied the phoenix rope wrapped around it. In this way, we can observe it more clearly. In addition to the appearance we just saw, we can also see some strange talismans engraved on the surface of the iron plate - different from the flying monster hidden on the stone wall of the first underground space under the outermost grave before, these talismans do not feel evil and weird.

It is just a normal Taoist talisman, but it is very profound and obscure, and it is very difficult to understand. After reading it carefully for a while, I only recognized one of the talismans - representing the meaning of [gathering], which can absorb and accommodate various spiritual energy of heaven and earth, yin energy, earth evil energy, etc.... After listening to my explanation, Lao Cao nodded slightly and said, "Then this makes sense! Just like what Xiao Wu said just now, the three yin gather here. All the yin energy is actually to nourish this iron plate."

That's right! I continued, my tone of doubt. "But the aura of this iron plate and the talismans on it are not evil or weird. This is a bit strange!"

From what I saw and heard here just now, I can basically confirm that the one who caused these things was an evil cultivator - a righteous cultivator would never make a monster flying head, a human-shaped spider monster and other ghosts. But the purpose and nourishment that an evil cultivator finally achieved was a mysterious black iron card that was not evil... Xiaoyuan, the big fat bird, spoke again. "By the way, Wu, Old Man Cao. This bird suddenly felt that this black iron card looked familiar. I should have seen it when I was in Northeast China before..." Is it? I was a little surprised and said quickly. "That's good! Fat bird, please remember the memories carefully. What is this weird little black iron card?"

Xiaoyuan stood on the ground, staring at the black iron plate with her head tilted, and she looked at it for a while. A rare and uncomfortable feeling suddenly appeared in her eyes, and she could only shake her head. "I really can't remember it, I'm a little bit of a vague impression. But when I think about it in depth, I feel a headache. The more I think about it, the more I feel, the more I don't think about it anymore... I've made my head dizzy. It really makes the bird angry."

It shook its head and took a few steps back, turning its head proudly, unwilling to look at the iron card more. Although I usually fight with this fat bird, I don’t think it’s uncomfortable at this moment. Perhaps this mysterious black iron card really brought back some very unpleasant memories - even if it may not be remembered clearly. "Okay, okay, you stupid bird, don’t think about it if you can’t remember it. Just a small broken iron card."

I smiled and rubbed its furry head. Xiaoyuan hummed. Lao Cao reached out and picked up the iron plate from the ground, and a strange color flashed in his eyes. "Sure enough! This brand as big as a palm actually weighs more than twenty kilograms. It is indeed much heavier than ordinary steel and other metals."

What? Just such a small brand weighs more than twenty pounds! I was a little unbelievable, so I took the iron card from Lao Cao. I immediately felt that my hand suddenly sank down, which was indeed quite heavy. If I were not mentally prepared, I would probably not be able to handle it... "What is this? I kept absorbing a large amount of the most yin energy in the Yellow Springs pool deep in the ground, and it was also made of mysterious metal."

I looked over and over again. Lao Cao patted my shoulder. "It's okay, let's take this thing out. When you go home and ask Xian Gu Qin, she must know! There are probably not many things in this world that she doesn't know."
Chapter completed!