The cave is less than two meters high, and at its widest, it can only accommodate two people side by side.

Zhu Yunwen released his divine sense to protect the two of them and took the lead, and Zhang Yan followed closely behind Zhu Yunwen without leaving. Although the two of them are in this dark environment, they can also see the movements around them clearly.

It's just that for Zhang Yan, it is the first time to grope in such a narrow environment. Although there is a master in front of her, she is still faintly afraid in her heart, which is all due to the nature of women.

After walking for a while, Zhu Yunwen noticed Zhang Yan's uneasiness, and then he came to his senses, bent his fingers, and cast a lighting technique. A round ball of light captured in front of the two of them, illuminating the dark cavern.

The cave has no bottom in sight, and it is not known how long and deep it is. Zhu Yunwen felt that the cave tunnel that the two of them walked through had already meandered down from the top of Jade Mountain to the foot of the mountain.

But the cave was still winding down, and after a while, it had dropped below sea level, but the cave tunnel had not yet reached the end. Zhu Yunwen could clearly feel that the further down he went, the more intense the aura in the cave became.

Even in Zhu Yunwen's divine sense, the aura in the cave in front of him was already foggy. This made Zhu Yunwen's interest even greater, and he guessed in his heart that in the cave here, either some kind of spiritual root was born, or, it was connected to a certain secret realm or a certain space-time barrier.

Half an hour later, Zhu Yunwen and Zhang Yan were already deep into the cave. At this time, the depth of the cave is already at the bottom of the East China Sea, and it is still meandering down.

Finally, when the cave suddenly turned into a wide underground karst cave in Zhu Yunwen's divine sense, Zhu Yunwen calculated in his heart and found that the two of them were more than 2,000 meters deep under the sea.

The two quickened their pace and quickly rushed to the underground cave. I saw that this underground cave was as wide as two or three football fields, and the cave was full of aura.

In the center of the cave, there is a natural pool in the shape of Yin and Yang Taiji. It's steaming hot, it's cold. And the source of the aura in the cave is also overflowing from this pool.

Zhu Yunwen took Zhang Yan's figure and stood by the pool. Just a cursory look at the situation of the pool, Zhu Yunwen frowned.

On the steaming side, Zhu Yunwen estimated that the temperature of the water here was several hundred degrees high. Miraculously, at such a high temperature, the water inside was not evaporated. On the other side, the temperature of the cold water is hundreds of degrees below zero, but it is only low and not frozen.

Such a magical place, Zhu Yunwen is really the first time to see it. Not to mention Zhang Yan, she has never even been out of the palace a few times, and she has never even seen a few mountains and rivers in the Ming Dynasty, let alone such a magical place.

Zhu Yunwen looked around, and after checking it with his divine sense, he said to Zhang Yan: "Yan'er, this place has a strong aura, which is suitable for your cultivation." In this way, you can practice by this pool for a while, and arrange a few formations for the master first. ”

Zhang Yan nodded, approached the side of the pool of steam, and sat cross-legged on the ground. Zhu Yunwen thought about it for a while, flicked his fingers repeatedly, and after laying out a guardian formation beside Zhang Yan, his figure flickered and disappeared from the pool.

When he reappeared, Zhu Yunwen had already appeared on the top of Jade Mountain again. Seeing that there was no one left and right, Zhu Yunwen took out several array flag array disks from his arms, and flicked his fingers into the soil layer under the ice and snow on the top of Jade Mountain.

There was a ripple in the air, then it calmed down again. It's just that the aura that originally emerged from the top of the Jade Mountain is quietly fading, and the cave hidden under the ice and snow has also quietly lost its trace. After a quarter of an hour, there was no more aura, seeping from the top of the jade mountain.

Zhu Yunwen nodded slightly, his body shook, and he appeared in the underground cave thousands of meters deep again. Seeing that Zhang Yan had entered the deep silence, Zhu Yunwen walked to the edge of the pool and sat cross-legged on the ground, releasing his divine sense and exploring into this mysterious pool.

A larger cave appeared in Zhu Yunwen's consciousness, and Zhu Yunwen was stunned. Under the pool, there was an underground cave that was several times larger than the one where it was now!

Zhu Yunwen looked carefully, and saw that in the middle of the underground cave, a huge stone pillar reached the cave where he was now. Zhu Yunwen thought about it carefully, and suddenly found that this huge stone pillar was the pool in front of him. The miracle of the Creator is beyond anyone's imagination!

Zhu Yun was amazed, the huge stone pillar below was hollow. Inside, a pool of water was magically divided into two water sources, hot and cold, and the stone pillars were still unharmed.

Zhu Yunwen looked at Zhang Yan who was in the middle of the meditation, thought about it, and after laying down a protective formation next to Zhang Yan again, he sat cross-legged on the ground, slowly submerged into the ground, and the next moment, he had already appeared in the wide cave on the next floor.

The first thing that caught my eye was a bright red tree that was only a foot tall growing at the base of the huge stone pillar. The branches and leaves, and even a few bare roots, were all bright red.

Zhu Yunwen was stunned for a moment. When he used his divine sense to probe just now, he clearly didn't notice the existence of this strange little tree. Zhu Yunwen thought about it, closed his eyes, and released his divine sense again.

What is displayed in the divine consciousness is still a wide karst cave, and this strange little tree still cannot be detected. Zhu Yunwen was immediately overjoyed, approached the small tree in a few steps, leaned down and carefully observed this magical little tree.

I don't know how many years the tree has grown, or what kind of breed it is. But without thinking too much, Zhu Yunwen can be sure that this little tree is a heaven and earth spiritual root that even his Cave Dzi World does not have!

Zhu Yunwen laughed excitedly, flashed into the cave dzi, came to the inheritance place, and looked through the inheritance left by Guangchengzi to see if he could find the information of this heaven and earth spiritual root in it.