Tong Lao's speed was very fast, but the roaring underground river seemed to be even faster! Seeing that he was about to catch up with Luo Tian and them, Tong Lao saw that he couldn't dodge, so he immediately waved out with one hand, and slapped directly towards the surging waves!

Just listen to the sound of "pop", the roaring river was directly slapped backwards! Taking advantage of this time difference, Tong Lao took Luo Tian and they came to the entrance of the cave! Everyone shouted lucky, fortunately Tong Lao was there, otherwise they would have been slapped away by the big waves!

"Master, what's going on?" Luo Tian asked with a sigh. It was fine to go in just now, why did the underground river suddenly roar!

"It's nothing, it's a normal thing. Legend has it that in the veins of Yuanshi, some monsters with spiritual intelligence will be born. It's the same as Yu'er, a heaven and earth spirit beast. Tong Lao stroked his beard and said.

It turns out that many ore veins, although they are closed, are capable of breeding unknown monsters with intelligence. It's the first time Luo Tian has heard of it. However, this water element stone vein also gave birth to a living being, which was an accident for the elderly.

I have already explored just now, this is not even a small vein, at most it is a miniature vein! But it is such a miniature vein, but what kind of life can it bring? Tong Lao was also very curious, because judging from the power of the big wave just now, the strength is still very strong. This thing conceived by heaven and earth is indeed magical!

"Master, what should I do next, is there really a monster in here?" Luo Tian asked. Generally, as long as Tong Lao is around, Luo Tian is already used to asking Tong Lao. After all, I haven't experienced many things myself, and asking Tong Lao is the most convenient way to get the answer directly.

"Of course, I'm going to go in and investigate. As soon as the teacher entered, he didn't feel that there was any life, it should be the prototype of a spirit beast bred by heaven and earth! However, unlike a spirit beast like Yu'er, the vitality contained in this vein is too huge, so the strength of the spirit beast bred will also be very strong. Even as a teacher, I don't dare to fight hard!" Tong Lao said thoughtfully. He also didn't know why a miniature ore vein would have a living body! It was said that this was impossible, and generally only medium-sized and above yuan stone veins would give birth to a living body! It should not be a living body, and Tong Lao was thinking about whether there were other possibilities.

"Eh, what should I do then, do you want to give up like this?" Luo Tian looked helplessly into the depths of the cave. I saw that a lot of water was flowing out of the cave at this moment! But this water was similar to ordinary water, and it was not aggressive. It seems that the water monster attack inside also has a range. At least you won't be attacked outside the hole!

In terms of speed, of course, Tong Lao and Yu'er are the fastest. Luo Tian and Bo Tsai could only dodge the attack. So then Tong Lao took Yu'er to go in again to investigate! Luo Tian and Bo Zai were waiting outside!

After a while, not long after Tong Lao and Yu'er entered the cave, there was a loud noise inside! After a while, I saw Tong Lao and Yu'er quickly retreat! This time the big wave seemed to be even more powerful than the last time, and they all attacked the outside of the cave. I saw that at this moment, Tong Lao and Yu'er were covered in water, and they all became soup chickens!

"Scared me to death, scared me to death, it turned out to be a huge column of water! That underground river can be combined to form the shape of a water Jiao!" Yu'er escaped and gasped and said. This time, Tong Lao and the two of them saw the appearance of the monster clearly. Or maybe it's not a monster, it's the underground river attacking them.

"What? Can an underground river be wise? The world is so big, I'm so small!" Luo Tian sighed, the world is so big, there are no surprises. What else is there that you can't imagine?

"No, there must be some other reason. How can there be such a mess of small miniature ore veins. Tong Lao wiped the water on his body and thought about something.

Everyone looked at the water yuan stone but couldn't get it, and they were all depressed. It's good for everyone. Not only can the Terran monks use it, but the demon beasts can also directly absorb the vitality inside. This is faster than the demon pill breathing on its own! The crowd couldn't think of a good way, so they decided to continue the exploration the next day, so they set up camp not far from the hill.

When he came out of the barracks, Tong Lao asked the barracks for a few tents, which came in handy at this time. It is said that such a major repair as Tong Lao has long been free of care whether there is a place to sleep or not, and they can rest even if they meditate on the spot.

But Luo Tian still has to rest. He could cultivate for several hours in a row, but he still needed to sleep when he was tired from cultivating. Only by breaking through to the True Yuan Realm can you go without rest for several days in a row, which is the vitality that replenishes the loss of the human body, so only monks can continue without sleep for a long time.

Early the next morning, Tong Lao took Luo Tian to the entrance of the cave. Even Tong Lao, a monk in the Danyuan Realm, couldn't deal with it, so everyone didn't know what to do. Just when everyone was worried, Luo Tian seemed to sense something.

"What's going on, why do I have the idea of wanting to go in?" Luo Tianyan said to himself. In the dark, there seems to be a feeling. This feeling made Luo Tian feel that something would happen if he went in. So he told Tong Lao about it.

After hearing Luo Tian's idea, Tong Lao directly refused. Luo Tian wants speed without speed, and he wants to have no realm without realm, isn't he looking for death when he goes in? So Tong Lao just doesn't agree to let him in!

"Hey, this feeling is even stronger! Master, just let me in! Maybe this is what kind of chance you are talking about!" Luo Tian's feeling became even stronger, so he begged Master again to take him in!

"Yes, Tong Lao, don't you often talk about chance? Maybe this is a chance for Luo Tian. Maybe we don't have enough chances, that's why the river will attack us, and this has nothing to do with the realm. Yu'er also persuaded beside her. She knew that Tong Lao was worried about the safety of her apprentice. But since Luo Tian can feel this way, then Yu'er will trust his instincts. Because Yu'er thinks that Luo Tianben is an impenetrable guy.

"This, okay, but if you want me and Yu'er to accompany you, once there is danger, you must let Yu'er take you away quickly, and take charge of the division to break off!" Tong Lao finally agreed to Luo Tian's request. So the two of them cautiously walked towards the inside of the cave!

Because of yesterday's water jet, the whole cave looks wet at the moment. Luo Tian followed Tong Lao, and Yu'er was by Luo Tian's side. Once there is danger, Yu'er will flee here with all her strength with Luo Tian.

In this way, they came to the underground river again, but this time, they were not attacked by the big waves like yesterday! Luo Tian and they were still cautious, after all, they didn't know when, the water column composed of the river would attack again!

"Huh, Master, look, there are a lot fewer water yuan stones on this stone wall. Where have they gone?" Luo Tian shouted in surprise. When they first came yesterday, there were still a lot of yuan stones on the stone wall, but today there are a lot less!

"It's better to be careful, the white eyebrows just said that they had discovered this place, but the teacher didn't know how he found out. It seems that there are a lot of secrets here!" Tong Lao also looked around cautiously.

When they came in, Tong Lao and Luo Tian were each holding a torch, so the surroundings were very bright. I saw that the groundwater below was flowing quietly, as if nothing had happened yesterday! This qiē made Luo Tian and the others look at each other, could it be that they hallucinated yesterday?

"Since there is nothing to do, let's hurry up and collect the Yuan Stone, look at this meaning, the Yuan Stone is inexplicably decreasing!" Luo Tian said and was going to get the next Shui Yuan Stone. At this time, he had already retrieved the cold iron giant axe from Tong Lao. I saw Luo Tian pick up the axe and slash at the wall, and then a large piece of rock wall fell. It is inlaid with pebbles-like water element stones. Luo Tian leaned over and picked up a piece, only to feel that his palms were cold.

"Master, this Shui Yuan Stone actually feels cold. Luo Tian handed the Yuan Stone in his hand to Tong Lao. Yu'er directly put a piece of yuan stone in her mouth. After a moment, Yu'er spat out a smaller gray stone, and the original pale blue stone had changed color and lost its luster.

Tong Lao held the water yuan stone in his hand, but he didn't absorb the refining, but directly crushed it with all his strength! Tong Lao checked the shattered yuan stone fragments, and he couldn't help but show surprise.

The purity of the Yuan Stone here is so high that even the children and elders are unbelievable. Yuanshi is divided into four grades: lower, medium, upper and best. The Yuan stones here are at least of the middle grade. This makes people even more puzzled, why do micro ore veins produce medium-grade metastone? It is only medium-sized ore veins that can produce metastone. Tong Lao is also confused at the moment!

Looking at Luo Tian again, I saw that he didn't care about thirty-seven twenty-one, and directly knocked down the Yuan stones on the surrounding stone walls with an axe! Most of the Yuan stones were embedded in the stone walls, and this stone wall was not too hard, so Luo Tian could obtain the water yuan stones so easily.

Seeing that there was no movement, Tong Lao also began to help. Tong Lao directly used his hand as a knife, and every time he chopped, he could cut down a few yuan stones. At the end of the day, the master and apprentice actually got more than 100 water yuan stones! It was not until evening that they walked out of the cave.

"Haha, Master, I have gained a lot today, I have actually got so many water yuan stones. According to your old saying, this is tens of thousands of low-grade water yuan stones. Let's send it, haha. Luo Tian danced happily. Yu'er looked at the Yuan Stone on the ground, which emitted a light blue light, and her eyes lit up! Today she absorbed a Yuan Stone, and it felt really comfortable, this was the first time she had taken the Yuan Stone, but now she was addicted to it.

For demon beasts, this Yuan Stone is even more attractive than that of Terran monks. Most of the ordinary demon beasts can't find the Yuanshi vein, and only the accumulation of a lot of experience in the human race can find clues. Therefore, most of the demon beasts find the seedlings of the spirit grass and guard them, and then take them themselves when they are ripe, so as to increase the speed of cultivation. This is the reason why many places with rare spirit grasses will be infested with demon beasts.

The demon beast's sensitivity to the spirit grass is much more enlightening than that of the Yuanshi ore vein. And most of the Terran monks rely on experience. Luo Tian's special perception ability is even sharper than that of demon beasts. As long as he gets close to the spirit object, he will definitely be able to find it, while the other Terran monks and demon clans will depend on luck!

Yu'er was very attracted when she saw this yuanshi, and even Bo Zai couldn't stop swallowing next to her. Luo Tian was embarrassed to take it for himself. So he begged Tong Lao to give Yu'er some of them. The Yuan Shi that Tong Lao got was all for Luo Tian, of course he wouldn't ask. So Luo Tian gave Yu'er and Bo Zai ten medium-grade yuan stones respectively.

However, what was surprising was that after a while, the two of them had absorbed the spirit stone, only to see that at this time, there were some gray stones piled up on the ground that had lost their vitality. Then they began to stare at Luo Tian with expectant eyes, Luo Tian hurriedly hugged the spirit stone in his arms, no matter how many good things these two guys have, they are not enough!

Yu'er saw Luo Tian take Shui Yuanshi into her arms, so she slowly approached Luo Tian. I saw that Yu'er didn't look at Luo Tian, but at the Yuan Shi in Luo Tian's arms.

Looking at Bo Zai even more exaggeratedly, Bo Zai actually had a mouth full of saliva, and then looked at those Shui Yuan stones without turning his eyes. Luo Tian saw that he was being "flanked" by the two of them, and he was so frightened that he immediately fled behind Tong Lao.

Tong Lao saw the appearance of his apprentice, and then looked at the hungry eyes of Yu'er and Bo Zai, and then laughed. Tong Lao saw that Yu'er and Bo Zai still wanted it, so he could only ask Luo Tian to take out some more and give them to Yu'er. Seeing those Yuan stones being absorbed by Yu'er like this, Luo Tian really wanted to cry without tears.

At this moment, Luo Tian suddenly thought of a question, that is, why could the demon beasts absorb the vitality of different elemental attributes, but the human race couldn't?