Zhu Yan and Chen Lan finally decided to take a risk, at least to see the cave and the "oasis" with their own eyes. Pen ~ fun ~ pavilion www.biquge.info

The two endured the blazing heat, went down a few hundred meters, and finally found the cave at a depth of nearly three thousand meters, where heat-eating and drought-tolerant creatures such as winged grass and golden beetles were distributed near the entrance of the cave.

Now, they were 100% sure that it was a man-made cave, because the walls of the cave were so smooth that even modern rock drills couldn't do it, and more importantly, they saw a huge stone sluice, stuck at the entrance of the cave and the volcanic tunnel, which must have been the valve that the underground humans urgently closed the entrance of the cave during the magma eruption.

As for the heat-eating creatures in the tunnel, Zhu Yan and Chen Lan suspected that they had spread out of this cave, because there were only traces of these creatures near the entrance of this cave.

"Could it be that these creatures were deliberately bred in captivity by underground humans? Could it be that this is the spiritual field they specially opened up? ”

A conjecture suddenly popped up in the minds of the two of them, and their spirits were lifted, and if that was the case, they would be furious now. Thinking about it, such a strong heaven and earth vitality is not used to cultivate heaven and earth treasures, isn't it a tyrannical thing?

At the thought of this, their feet became faster, and in a short time the two of them stepped into the cave at the same time.

The entrance of the cave is on the side wall of the volcanic tunnel, and the beginning of this section is a regular rectangular corridor, which is about two or three meters high and wide, and more than ten meters long, which looks slightly narrow. The heavy stone gate was located at the very front of the road, and it was suspended in the hollow of the rock wall, as if it could fall at any moment.

Along the corridor to "look", dozens of kinds of heat-eating organisms such as winged grass, silicon leaf grass, silver branch flower, golden beetle, etc., are densely distributed on the four walls of the corridor, and those that are particularly heat-tolerant and drought-tolerant have already spread to the tunnel wall outside the cave.

As soon as she entered the cave, Chen Lan's eyes never left the creatures on the walls of the cave on all sides, and she had already discovered that many of them were extremely rare elixirs. As she walked, she did her best to collect the best elixirs, and if it weren't for the lack of time, she really wanted to have them all in her pocket.

Zhu Yan didn't collect the elixir immediately, he was looking for the switch of the stone gate, and according to the traces of the flow of vitality on the cave wall, he quickly found a raised rock, which was the switch that controlled the stone gate.

The design of the stone gate switch amazed Zhu Yan and Chen Lan who heard the news again, it was definitely a product of high technology, the same as Atlantis's technology. That raised rock was actually an energy crystal, as long as it was activated with its psychic ability, it could make the Yuan Qi rune array on the cave wall operate, thereby controlling the lowering or rising of the stone gate.

"Let's put it down!"

After the two exchanged opinions, Chen Lan stretched out her hands and put them on the energy crystal, and as her mind flowed, the crystal gradually lit up. In a few moments, the entire wall of the cave lit up, and then there was the sound of machinery rolling in the wall, and the heavy stone gate slowly descended until it joined the grooves of the ground.

At this moment, the two of them felt that the heat outside their bodies immediately decreased a lot, as if a person walking under the scorching sun in the middle of summer suddenly entered a cool room, and the pressure on their bodies suddenly decreased a lot.

It's okay now, they don't want to return right away, although the concentration of vitality is still quite high at this time, but if you hold on for a few more hours, it will be absolutely fine. Chen Lan was even more happy and almost jumped up, for a spiritual healer, what was more exciting than a large number of top-grade elixirs?

Zhu Yan also helped collect medicinal herbs, and he mainly dealt with animal medicinal herbs like golden beetles. Since there are no special stocking containers, these animal herbs can only be killed, placed on the rock wall to dry, and then taken away when they return.

While collecting medicinal herbs with their hearts, they slowly probed into the interior of the cave, and before they knew it, they had crossed the tunnel that was more than ten meters long. At this moment, their eyes suddenly opened up, the scenery changed completely, and a cave beyond their imagination appeared in front of them.

It was a cave hundreds of meters wide and immeasurably deep, with a cave top tens of meters high, stone pillars that could not be closed with both hands, coupled with the sound of grass and insects in the distance, the jingling of flowing water in the distance, and the incomparably rich vitality of heaven and earth, it was simply the blessed land of the cave that the legendary Xiuzhen sect dreamed of!

It wasn't until the sound of running water in the distance was faintly heard that Zhu Yan and Chen Lan realized that the temperature here had dropped a lot, because there was liquid water, the temperature would inevitably be lower than 100 degrees Celsius.

They all suddenly thought of something, and smiles appeared on their faces at the same time. If the temperature in front of it is a little lower, not only the two of them, but also ordinary cultivators like Zhang Yiyi and Teacher Chen, may be able to practice here, maybe they can really build a cave here.

This is definitely good news for everyone! You must know that the reason why modern human beings are slow to cultivate on the earth is mainly because the Heaven and Earth Yuan Qi that can be absorbed by human beings is thin, and once you come to this cave with rich vitality, it is certain that people's cultivation speed will definitely increase by a hundredfold or a thousand times.

Of course, how to get them here smoothly is also a big trouble, at least they have to find a way to survive the blazing heat. Forget it, I'll leave this matter for later, but let's find out about the situation in this cave first!

When they turned the present again to the creatures in the cave, they found that they had changed again. The creatures at the entrance of the cave are not only small, but also have thick outer walls or skin, and are all particularly heat- and drought-tolerant species.

And here, the types of creatures have become complicated, full of strange creatures, there are about a thousand species, many species even Chen Lan can't tell. They are no longer so small, some small forests have appeared, and even small monsters have been spotted from time to time.

"Oh, this is the silicon cloaked grass, this is the silver branch flower, this is the Zhu Lingguo, and this is the King Kong Mouse, the Blood Jade Spider, the Gold Devouring Flying Ant, ......"

Chen Lan shouted excitedly while inspecting it, those creatures were once rare elixirs on the Atlantis continent, but they abound here.

They no longer cared about collecting the same thing, but rushed forward quickly, the herbs on both sides retreated, and occasionally one or two small demonic beasts that did not open their eyes blocked the way, and they were also pushed away by their swords.

However, they did not get carried away and remained vigilant at all times. In the memory information of the Changing Flying Snake, it ran out of the depths of this cave, which means that there may be more powerful magical beasts in the depths of the cave, and they have to guard against it.

After a few thousand meters of travel, they finally came to a huge waterfall, which flowed down from a hole in the top of a cave more than ten meters high, rushed into a pool of water with an area of several hundred square meters, and then flowed into a hidden underground channel.

Standing in front of this high hanging waterfall, they can hardly feel much heat, the temperature of this pool of water is only slightly higher than the hot spring at the base, but the rushing air waves make them appreciate the atmosphere of sauna for the first time.

In the vicinity of the waterfall, there are not only those small plants and magical beasts, but also the herbs and reptiles that can be seen everywhere, as well as a bread tree more than two meters high, a fire rabbit with two horns on its head, a four-legged snake covered with hard scales, and even the figure of a wind demon wolf jumping through the woods...

"It would be great if we could build a cultivation base here!"

Zhu Yan didn't remember that this was the first time Chen Lan sighed, such a good cultivation condition, it was impossible to say that there was anyone who didn't envy it. But ideals are often very plump, and reality is often very skinny, if you really want to build a cultivation base here, the trouble is not ordinary.

Not to mention that it is a problem to get down from the tunnel that can roast people into jerky, even if Mr. Chen and the others can come down smoothly, the demonic beasts hidden around here are definitely a hurdle that cannot be bypassed.

"Perhaps, we can get rid of them slowly! Or, as primitive people did, we fence a place from the fence, right? ”

Chen Lan still didn't give up, and she couldn't help but be inexplicably excited when she thought that her parents who were getting younger and older might be able to cultivate immortality.

"Well, there is always a way to solve the problem! Let's take a look at the situation around us, and maybe there will be new discoveries. Zhu Yan naturally understood her intentions, so she comforted and said.

They rounded the waterfall with the sound of bells and continued their way deeper into the cave. After walking a few hundred meters, a large red stone pit appeared in front of them, which looked like a mining shaft left over from ancient times.

Zhu Yan reached out and took a piece of red ore that was littered all over the place, and with a slight pinch, it turned into a pile of reddish-brown powder, and when he smelled it carefully, it still smelled of rust.

"It's hematite, and it's in good condition. But this ore is littered everywhere, and it seems that this mine is not specifically used to mine iron ore, so what kind of ore is it going to be mined? ”

"Xiao Yan, look, this ore seems to still have a little yellow, could it be gold ore?"

At this time, Chen Lan suddenly found a slightly special ore, and ran over to tell him excitedly.

"That's right, it's gold ore, but it's less gold and not very extractive."

Zhu Yan swept it with his divine sense, and then said affirmatively. The purple vitality contained in this ore is similar to the gold placer mine next to the Changbai Mountain Waterfall, but the amount of vitality is far less than that gold placer mine.

Subsequently, they found more similar gold-bearing ores, all of which contained less gold and had no mining value. And, the deeper they went down the mine, the more such ore there were, and they even found a few pieces of gold ore that were still worth mining.

Now they all know that this is an abandoned gold mine, and judging by the weathering of those fragmentary ores, the time to be abandoned should be tens of thousands of years.

Tens of thousands of years ago? This generation of earthlings is still in a barbaric period, so who mined this gold mine? Who left such a cave? Are they Atlanteans, or are they the people of the Centroid who already existed? Or, the first generation of human miners created by the legendary gods? Where are they now?

In front of Zhu Yan and them, a heavy fog rose, and behind that fog, there may be hidden secrets of ancient humans.