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With a "poof", Lu Xiao, who had fallen into the abyss, and Xiaobai, who had been staying with him, fell into an icy underground river together after continuing to fall for nearly twenty seconds.

Rao is Lu Xiao, who has excellent physical fitness and is about to complete his cultivation on the first layer of the Qi Character Chapter of the Heavenly Machine Book, shuddered fiercely the moment he entered the water.

In terms of the latitude where China is located, the temperature of groundwater about 20 meters underground is generally between 15 and 20 degrees Celsius. For every 100 meters of groundwater, the temperature of the groundwater drops by about one degree.

Lu Xiao and the others fell down from the square of the Nine Heavens Star Formation Main Formation Eye that they entered, and according to the sense of space that Lu Xiao had entered and the length of time it had just fallen weightlessly, this should just be an underground river in the Longmen Peak mountain. It is neither on a high mountain at a very high altitude, nor deep underground.

So according to conventional reasoning, the water temperature here cannot be so cold. But Lu Xiao, who shivered as soon as he entered the water, could clearly perceive that the water temperature of this underground river was close to zero, which in itself was contrary to common sense.

Not only that, but in addition to the extremely low temperature, this underground river also gives people a very cold feeling, not the cold in the air but the cold of yin and yang.

But now is not the time to think about the abnormality of the river, the four wisps of true qi in Lu Xiao's body continue to flow in his four meridians, resisting the cold qi in the river water, Lu Xiao finally swam ashore before the muscle cramps all over his body, and he lay directly on the sand by the river tiredly, panting heavily.

"Whew!"

The tired Lu Xiao gently wiped the water droplets from his face, ready to get up and observe the surrounding environment. Xiao Bai, who didn't want to be lying on top of Lu Xiao's head at this time, was not affected by the strange cold river water, so he shook his whole body, shook off the water droplets on his body and splashed Lu Xiao's face.

Seeing that Lu Xiao's freshly dried face was covered with his masterpiece again, Xiaobai gloated and shouted "Wow Wow" next to him.

Looking at Xiaobai's naughty appearance, Lu Xiao glanced at him angrily, and first took the wordless page left by his grandmother from his two little paws, which Xiaobai and Lu Xiao grabbed in their hands when they fell. Then Lu Xiao slowly got up tiredly and observed the surrounding environment. But it didn't matter if Lu Xiao looked at it, the scene in front of him made Lu Xiao suspicious.

This underground river is very wide and the water level is very deep, and most of the sides of the river are covered with fine sand and large rocks. There was nothing in this, but what made Lu Xiao puzzled was that the height from both sides of the river to the stone wall was strikingly similar, almost fifteen meters or so, all of which were artificially chiseled traces. At intervals, the stone wall is inlaid with an unknown stone that glows and is not a pearl of the night.

Everything that appeared in front of Lu Xiao's eyes was exactly the same as the ancient tomb that Lu Xiao built to help Rodriguez enter Li, and the underground river that Gao Jie fell into. In addition to the fact that the river here is more turbulent and the buildings on both sides of the river are more magnificent, the others give Lu Xiao a sense of déjà vu.

Although it is said that he was bewitched by the mysterious man who seemed to know everything in the later stage of his military power, in order to resurrect his relatives in the village, he began to learn from that mysterious man, and the ancient tomb was built after learning something. But even if that ancient tomb has the shadow of the mysterious man's teaching, it is after all built according to his own ideas and wishes after integrating some relevant feng shui knowledge.

But in front of him, according to the naturally formed underground river as the benchmark, the artificially dug river leading to the distance, whether it is from the construction techniques, the style presented, or from the familiar sense of déjà vu given by the things built by the builders, Lu Xiao feels that this place also seems to be built.

From the ancient tomb in the Longjing Mountain Range, Lu Xiao did not get any information about which dynasty Li was born from, and there is no record of this character in history. Therefore, Lu Xiao was not sure whether this place, which was obviously older than the ancient tomb in Longjingshan, was from the hand of Li.

If it wasn't built by Li, then who was the builder who was so similar to Li's technique, could it be that the mysterious man built it in the early days, and the ancient tomb built by Li's was just a simple imitation of him? However, it was basically impossible to be separated from the arrogant character, especially since the formations built in the two places were completely different.

But if it was built by Li, then the early Li had already successfully built the Nine Heavens Star Formation, so why did he have to go far and far in the later stage to build another ancient tomb with a defensive power that was not as good as here in the Longjing Mountain Range?

What kind of connection exists between the treasure hiding place here in Tianchi and the ancient tomb in the Longjing Mountain Range, this question made Lu Xiao fall into deep thought.

"Click!" With a sound, at this time, Xiao Bai next to him seemed to feel that Lu Xiao would be very cold when he was wet, so he directly smashed several wooden stakes on the shore with one paw, and looked at Lu Xiao with his little paw pointing at his masterpiece.

Xiao Bai's sudden move made the contemplative Lu Xiao come back to his senses, looking at Xiao Bai's concern about himself, Lu Xiao nodded warmly, and then lit a fire and dried his wet clothes first.

"Rustle!"

Just when Lu Xiao had just dried his clothes and was about to see if there was any delicious food in the underground river that could replenish his energy, a sudden rustling sound came from not far away.

For this kind of sound similar to the extinction of gold-eating ants, Lu Xiao is too sensitive. The extinction gold-eating ants in the ancient tomb of the Longjing Mountain Range made Lu Xiao and the others almost not come out of it, and at this time, this similar sound appeared, and Lu Xiao's whole face was extremely solemn.

"Wouldn't this place have that thing?" Lu Xiao thought in his heart with a wry smile, and then slowly walked in the direction where the voice came from.

He climbed a big rock lightly, quietly poked out half of his head and looked at it, and then the whole person was stunned.

For just below the boulder, in a stretch of sand like the one where he had just started a fire, there was a huge tortoise with its huge claws, constantly burying something with the sand.

The big turtle in front of Lu Xiao was about two meters long, although it couldn't be compared to the super mutated Xiao Hei and the king of locusts who almost didn't treat them as snacks just now, but the two-meter big turtle was already rare.

Just when Lu Xiao saw that this big turtle leaked a little bit of surprise, this turtle seemed to be psychic, and instantly looked in Lu Xiao's direction.

The big turtle saw Lu Xiao hiding behind the rocks, and one person and one turtle stared at it with big eyes and stared motionless for a long time.

Then the big turtle slowly moved in the direction of Lu Xiao, blocking the place where it had just been buried with its huge body, and then still intently started another round of eye contact with Lu Xiao.

Looking at the big turtle's movements, Lu Xiao seemed to guess his intention to do so.

According to the habit of turtles, when they lay their eggs, they will lay their eggs in the sand holes they have dug in advance, and then cover them with sand, and then wait for the baby turtles to break out of their shells.

In this world, whether it is human beings or other intelligent beings, there will always be a word in their lives, that is, "maternal love", and there is no mother of a normal intelligent creature who does not love her children.

The behavior of the big turtle in front of him made Lu Xiao think in an instant, it was very likely that it had just laid eggs, and the rustling sound should be that it was burying the sand hole where the turtle's eggs were placed with sand.

After discovering that Lu Xiao appeared here, it desperately used its body to block Lu Xiao's side. Even if it knows that it can't do anything, it wants to let its children live a little longer.

This is what this big turtle wants to express, this is the stupidest and most admirable maternal love in the world.

And the big turtle's next action just verified Lu Xiao's guess, only to see that it saw that Lu Xiao had been staring at him but had no other movements, and felt that Lu Xiao didn't seem to be a bad person. Then the big turtle pointed behind it with a turtle claw very humanely, and then it turned its head and looked at Lu Xiao's eyes pleadingly and shook its head.

The meaning of the big turtle is very simple, that is, I hope that Lu Xiao will not kill the child who is still a broken shell.

Looking at this big turtle full of maternal aura, Lu Xiao missed his mother a little bit who didn't know where he was.

He smiled and nodded, and said to the big turtle in a very sincere tone and with an equal attitude: "Don't worry! I didn't mean to touch your child, but I heard the rustling sound and came over curiously to take a look. ”

After Lu Xiao said this, he didn't care if the big turtle in front of him could understand it, so he jumped off the boulder and returned to the fire. At this time, all the projections in Lu Xiao's mind were with his parents when he was a child, and their family of three rarely had a warm happy time, and the corners of their mouths couldn't help but show a warm smile.

"Wow?"

Xiao Bai didn't know why Lu Xiao was in a daze after hearing the voice just now and coming back from going out to investigate. He tilted his head a little cutely and thought, and let out a soft cry of confusion in a milky voice, and then Xiaobai was a little curious like a lightning bolt quickly crossed the big stone.

"Whoa, whoa!"

After a while, Lu Xiao, who was still contemplating the good life in the past, was awakened by a series of voices from Xiaobai. Picking up Xiaobai, who was causing trouble to his hair on his head, Lu Xiao was angry and wanted to give him a burst.

However, at this time, Xiao Bai's eyes flashed with the same look of invitation, and his two little paws held a bead with a diameter of thirty millimeters that looked like a glass ball, and handed it to Lu Xiao like a treasure.

Lu Xiao took this bead from Xiaobai's hand with some confusion and observed it, its texture and color were similar to ordinary glass balls, it was a completely transparent bead. There's also a little bit of sky-blue material in it, and the whole looks like a glass ball.

Lu Xiao looked at Xiao Bai with some doubts, he didn't know how Xiao Bai got this unknown object, and what was the purpose of this glass ball that didn't seem to have the slightest special feature, and asked Xiao Bai to dedicate it to himself like a treasure.

Just as Lu Xiao was thinking about this question, the bead in his hand suddenly shattered......