Since he couldn't collect the Heaven and Earth Spirit Pool, Li Qing could only leave helplessly. All the methods have been tried, and there is really no way to break this cyan light mask, even the Heavenly Sword is useless for this, so he will no longer do useless work.

Of course, you still have to scavenge before leaving, this place has such a rich aura, many ordinary things will become very valuable, and collecting them all is a lot of wealth.

Even ordinary stones are moistened to be crystal clear, with mysterious powers, of course he will not let go of such a good thing, and it can be used as a precious refining material when it is dug back.

In addition, there are many treasures on Mr. Ghost One's body, Li Qing found a lot of strange evil things from his body, of course, it is impossible to accept them, so he threw them away, leaving only valuable spirit stones and weapon materials and other things.

In addition, there is a Yin Yang Order, plus five on Li Qing's body, just six, all of them are collected.

Walking out into the larger cave outside, you can see that there is still a small vein of spirit stone, buried in the surrounding stone wall.

This spiritual stone vein is actually not big, and it can't even be regarded as a vein, but because the aura here is too strong, it is produced over time.

The turquoise spirit stones were inlaid on the stone wall, shining faintly in the darkness, looking like stars.

Li Qing estimated that there were at least nearly 100,000 spirit stones, although they were not worth mentioning compared to real treasures, but they were very useful to Li Qing, and spirit stones were the things that were most closely needed by martial artists who were innate and strong.

After half a day of hard excavation, Li Qing dug out all the spirit stones on the stone wall, counted them, and got a total of more than 80,000 pieces, and his net worth skyrocketed in an instant, and there was no shortage of spirit stones to use from then on.

The things in the two caves, one large and one small, as long as they were valuable, Li Qing did not let go of anything. In line with the principle of taking light, digging light, and prying light, the two ancient caves were all searched by him, leaving only a spiritual pool in the center and a few white jade pillars that produced 10,000-year-old spiritual milk.

After searching all these things, he turned around carefully twice, feeling that there was no more missing, and Li Qing reluctantly left this place.

..........

Walking towards the passage outside, returning to the upward along the original path, passing through the range of the source of heat and cold in the ground again, the temperature continued to alternate, and Li Qing had a new understanding in his heart.

He hadn't understood what this big array was for, but now that he thought of the Heaven and Earth Spirit Pool and the Pure Spirit Blue Lotus in the Ancient Cave, he finally understood.

It is rumored that there is a magical formation in the world, called the Water and Fire Pregnancy Array, which can give birth to the holy relics of heaven and earth.

Walking up the whirlpool passage, after a long time, he finally came to the end, and Li Qing came out of the mouth of the earth fire cave under the Sun Moon Dan furnace.

Now that Mr. Oniyi is dead, no one will come to attack Li Qing in this ruin, and he is the only one left in this place, so he doesn't have to worry about falling into the trap of the enemy.

Li Qing looked at the huge Sun Moon Dan Furnace in front of him, such a good thing can't be let go, he must find a way to get it. After all, this thing is more precious than ordinary Dao weapons, and I am afraid that there are not a few Dan furnaces of this grade in the world.

Reaching out and stroking the carvings on the Dan Furnace, Li Qing suddenly felt the intimacy of the spirituality inside the Dan Furnace, which made him a little surprised.

When he wanted to collect it before, the spirits in the Dan furnace were very resistant, but he didn't expect that now he had changed his attitude and become closer.

After thinking about it for a while, he understood, because he could be said to have obtained the inheritance of the Yin Yang Demon Emperor, and even the Yin Yang Great Grinding Plate had already recognized him as the master, not to mention this spirit weapon-level Dan furnace.

This Dan Furnace is a treasure refined by the Yin Yang Demon Emperor, Li Qing has obtained his inheritance, and the Sun Moon Dan Furnace feels this, so naturally it will not resist anymore.

Thinking of this, Li Qing's face showed a hint of joy, and the true yuan in his hand kept entering it, and he shouted in a low voice: "Collect!"

I saw that the Sun Moon Dan Furnace seemed to be slowly revitalizing, emitting a faint spiritual light, and then it gradually shrunk, and soon shrunk to the size of a wine glass, and flew to Li Qing's palm.

Seeing this small and delicate Dan furnace in the palm of his hand, it was hard to imagine that it was a huge behemoth a moment ago.

The artifact is truly magical! It can be scaled up and down with ease. Li Qing included it in the space ring and left the alchemy hall.

..........

In the following period of time, Li Qing explored several magnificent halls around him in a row, but the results were all fruitless. For example, there is a spirit animal garden, which contains many precious spirit beast eggs, but it seems that time has passed too long, and all of them have become ancient fossils.

Li Qing put all these ancient fossils into the space ring, although it is no longer possible to hatch spirit beasts, but there is always no harm in keeping them, maybe it will be useful in the future.

In addition, there is a talisman hall, and the talisman seal inside has long been invalid, and there is a pile of waste paper, which is useless. Li Qing returned empty-handed again.

Feeling a little depressed, Li Qing walked out of these halls and began to move on to the next building.

"Hopefully this building down there will be something to be paid off. He thought to himself, concentrating on defending against the dangerous mechanisms on the road, and struggling to move forward.

After walking for a long time, this road finally came to an end, and Li Qing looked forward and couldn't help but be a little shocked.

In front of him, a huge square appeared!

"Huh...... What kind of place is this?"

Seeing the scene that was very different from other buildings, Li Qing was refreshed, and he felt that he should have arrived at an important place.

This square is extremely huge, and there is a huge black and white yin-yang fish carved in the center of the ground, although it has long lost its luster, but it still exudes a simple charm.

Looking ahead, as far as the eye can see, at the end of this square, stands a magnificent hall, exuding the atmosphere of the ancient wilderness.

"This hall is extraordinary! There, it should be the core hall of this ruin!" Li Qing's eyes were clever, and he saw the extraordinaryness of this hall, and his heart was slightly excited, and he finally arrived at the core of this ruin.

Hurriedly walked forward, passing through the huge square, and quickly approached the magnificent core hall.

Not long after walking on the square, Li Qing felt that the aura here seemed to be very strong, which was very different from other places, and he couldn't help but have some doubts in his heart.

"The depth of the aura here is not much worse than the spiritual pool space underground! Could it be that this is also the center of the terrain of Wanchuan returning to the sea?" Li Qing guessed in his heart, "That hall is very likely to be located directly above the underground spiritual pool space, and it is the center of Wanchuan returning to the sea, no wonder the spiritual energy is so strong!"

Since it is the central place, then Li Qing can confirm the guess in his heart, this hall is indeed the core place of this ruin!

Quickly passed through the square, walked to the steps of the main hall, and looked forward, Li Qing saw that on the plaque above the door of the main hall, there were four big characters: Yin and Yang Palace!