Luo Tian thought of this and asked Tong Lao this question. Hearing Luo Tian ask himself this, Tong Lao didn't know how to answer.

In the Xuanyuan Continent, the Yuan Stone is divided into five elements, the Demon Pill of the Demon Beast is also divided into five elements, and even the mental method of cultivation is divided into five element attributes. This demon beast can absorb and transform between different attributes, which is also a very common thing, so common that everyone is accustomed to it. Therefore, no one has studied why demon beasts can transform the vitality of different attributes.

In the Xuanyuan Continent, demon beasts are also divided into attributes. The general Tianyi Tiger is a type of demon beast with fire attribute as the main attribute and wind attribute as the supplement, and the same is true for the attribute of the wind wolf. But Bo Zai can devour different attributes, even the demon pill or yuan stone that he does not have, which is an incredible thing.

If you look at it according to human experience, the human monks and the demon race are different. The difference between the two is that if a Terran monk belongs to the fire element attribute physique, then he can only practice with the fire attribute mental method. Moreover, the Yuan Qi absorbed from the Yuan Qi River is also a fire attribute, and the Yuan Stone absorbed can only be a Fire Yuan Stone.

In addition to absorbing the attribute vitality that the demon clan possesses, it can also absorb the vitality by devouring demon pills with different attributes. This is the difference between the Terran monks and the demon beasts.

Tong Lao didn't have much research on demon beasts, and Yu'er couldn't tell why the demon clan could absorb all the Five Elements Vitality. However, he felt that it might be that the body structure of the human monk and the demon clan was different, so he guided the demon clan to do that.

Yu'er said that not all attribute vitality is at the same absorption speed. For example, the attributes that you have can be absorbed quickly, while the attributes that you don't have can be absorbed more slowly. So on the surface, it looked like Bo Zai absorbed the vitality of the ten water element stones, but in fact, most of them were stored in the body, and then they were slowly digested. In other words, there is actually a limit to the five elements that the demon beast can digest that it does not have.

Luo Tian sorted out Yu'er's words, and finally came to the conclusion that the body of the demon beast actually contained the special ability of the transformation of the five elements! Although this ability is relatively weak, it is still much better than that of the human race. Because the human race can only absorb the five elements attribute vitality that it possesses, and the vitality that it does not possess will cause damage to itself if it absorbs it.

"Hey, if only I had that ability!" Luo Tian sighed. He hadn't reached the True Yuan Realm yet, so even Tong Lao didn't know what attribute of Yuan Qi Luo Tian was suitable for absorbing.

Like Tong Lao, the wood of the five elements is the main, supplemented by fire. This is a very typical combination of attributes to become an alchemist. This is also the basis for Tong Lao to become a senior alchemist!

Listening to Luo Tian's words, Tong Lao sneered: "Hehe, then you won't become a demon beast." Everything has its own fixed number, and the human race has its advantages and disadvantages. The same is true for the demon clan, everything doesn't have to be forced. ”

"Eh, hehe, it seems that he is greedy in vain, but the ability of this demon clan is indeed very attractive. For example, this water element stone can't be absorbed by your old man, and you have to spend energy to replace it with what you need, how troublesome it is!" Luo Tian thought with his chin propped up, he was wondering if there was really no way to absorb the five elements of vitality at the same time?

Tong Lao saw that Luo Tian was still thinking about beautiful things, and he didn't bother him, so he went to the side to meditate. Yu'er went to bully Bo Zai, and when she was usually fine, Bo Zai was Yu'er's "punching bag". Luo Tian was still there in a daze, thinking about something

In this way, the night passed, and Luo Tian didn't know when he fell asleep, only that he woke up and the sun was already high. After breakfast, Tong Lao wanted to collect the Yuan Stone again, so everyone was looking forward to today's harvest.

Luo Tian slowly walked towards the cave with a torch, although it was safe all day yesterday, but Tong Lao reminded him to be cautious at all times. You don't know when it happens. Today is still the same as yesterday, Tong Lao is at the forefront, and Yu'er is protecting Luo Tian.

Soon, everyone came to the interior of the mountain. However, just when everyone wanted to continue collecting hundreds of Yuan Stones, something unexpected happened to them!

"Ah, where is the Yuan Stone, where is my Yuan Stone?" Luo Tian said as he touched the stone wall with his hand. Just yesterday, he remembered very clearly that there were a lot of Yuan Stones in the vicinity, and they disappeared today, how could this be!

"Look, most of the Yuan Stone is gone, and all that's left are small pieces. Yu'er also shouted in surprise. This is not scientific, why is Yuanshi getting less and less every day.

Just as they were wondering, the whole cave shook violently, and a huge column of water was coming towards them. The appearance of the water column suddenly looks like a water Jiao, but in fact, it has no entity, it is composed of ordinary water!

"Retreat!" shouted the boy. Because he can only block it for a moment, and Tong Lao can't support it after a long time. However, just after Yu'er Luotian turned around, they found that the entrance of the cave had been blocked by a huge falling stone because of the violent shaking. At this moment, Tong Lao was blocking the water column, and Yu'er and they were blocked again.

Tong Lao resisted the water column again and again, but when he turned around, he found that Luo Tian and the others were still behind him. It turned out that the entrance to the cave was blocked! Tong Lao turned around and directly freed up a hand, he planned to help Luo Tian and them make an exit. But just then, the huge column of water came again.

There was a loud "boom", and Tong Lao's hand couldn't resist the powerful force. The entire cave was instantly filled with water.

"Save Gollum", as soon as the help was halfway said, Luo Tian was annihilated by the water column. Including Tong Lao and Yu'er, everyone was completely immersed in the water. At this moment, the torches had been extinguished by the water, so none of them could see each other.

The huge impact did not stop after hitting the boulder that had blocked the entrance to the cave just now. Instead, it pushes the boulder towards the entrance of the cave.

There was a "bang", and the huge stone was hard pushed out by the water! Then I saw a deer and an old man in white being rushed out! The old man was Tong Lao, and he was the strongest, so he was steady as soon as he was rushed out. However, after Yu'er was squirted out, she fell directly down the mountain.

Yu'er won't be in the air yet, so she will definitely be seriously injured if she falls. Seeing this, Tong Lao immediately turned around and flew towards Yu'er. He didn't see any trace of Luo Tian, so he didn't know whether Luo Tian was dead or alive. But it should have been squirted out as well.

Tong Lao caught up with the falling Yu'er in the blink of an eye, and then released his true qi to support her. At this time, Bo Zai also rushed over, and he didn't scare Bo Zai to death just now. At that time, Bo Zai was waiting for Luo Tian and them at the entrance of the cave boringly, but who knew that the earth actually shook!

Bo Tsai didn't know what was going on inside the cave, and he pulled his head to look into the hole. But then a boulder was ejected out, which scared Bo Tsai to dodge, and Bo Tsai was almost hit. When it saw Yu'er fall down the mountain, it also hurried to save her, but at a slower pace.

"Roar" Bo Zai seemed to be asking if there was anything wrong, but the next moment it started to get nervous! Not only Bo Zai, Tong Lao and Yu'er were also nervous!

"Not good!" shouted the old boy and flew towards the entrance of the cave. Bo Tsai carried Yu'er and ran to the entrance of the cave halfway up the mountain. It turned out that they found that there was no trace of Luo Tian at this moment!

"Apprentice, where are you?" Tong Lao anxiously searched around.

"Luo Tian?" Yu'er also shouted loudly. Even Bo Tsai roared loudly. Although it could not speak, it also hoped to get an answer from Luo Tian.

However, after searching for a long time, the entire mountain was searched, but there was no trace of Luo Tian. In other words, it is very likely that Luo Tian is still in the cave at this moment!

"I'm going to find him!" Tong Lao said and was about to enter the cave, when Yu'er bit Tong Lao's clothes with her mouth, and Tong Lao stopped!

"Don't go in yet, what if you get rushed out again. Yu'er said worriedly, although Tong Lao was not afraid of the impact of the water column, but there was nothing he could do with the water column.

"It's okay, I'm willing to die for the sake of my apprentice!" said the old boy and walked straight in. Yu'er wanted to say something, but she didn't say it. So she followed.

Tong Lao took Yu'er and Bo Zai into the cave, but found no trace of Luo Tian along the way. This cave is only a few dozen zhang, so they quickly reached the interior of the mountain! When they came to the cave, they found that the situation was still the same as just now, the underground river was still flowing slowly, and there were fewer yuan stones on the surrounding stone walls. If you pass through so many times, it is estimated that the Yuan Stone is basically gone.

"Luo Tian, are you there?" Yu'er shouted, and Yu'er's echo came from all around. But except for the sound of the river flowing quietly, Luo Tian's response was not heard. Tong Lao saw that he still couldn't find Luo Tian, and wanted to release his soul sense to investigate, but he still couldn't find Luo Tian's trace!

"Where has this gone, why can't my soul sense detect it?" said Tong Lao with a frown. His soul consciousness can extend ten miles away, it is said that Luo Tian cannot run ten miles away! Tong Lao is even more anxious, this is a situation he has never encountered!

Tong Lao's soul consciousness can measure the life form within a radius of ten miles. In other words, Luo Tian's traces can't be detected at this moment, it is very likely that he has already had an accident! Or there is another possibility, Luo Tian has reached the range that the old child's soul sense can't detect!

Just when Tong Lao and the others were anxious for Luo Tian's safety, Luo Tian at this moment was wrapped in a huge column of water and rushed into the underground river. Luo Tian had been stunned by the huge waves, and he was slowly moving with the current.

This underground river is formed by underground currents and karst caves, and the light does not reach the ground, so the water here is cold and biting. Luo Tian didn't know how long he had been floating, and suddenly a faint light appeared in front of him. The light was getting closer and closer, and this was actually the location of an underground waterfall! Luo Tian was slowly washed to the edge of the waterfall, and then he fell sharply with the water towards the bottom of the waterfall!

With a "plop", Luo Tian fell directly into the pool of the waterfall from a height of dozens of zhang, and then was washed to the shore by the current, and Luo Tian at this moment did not know whether he was alive or dead