Just as everyone was frowning, Mr. Cicada suddenly said, "Actually, why do we have to look for a spacious waterway? Why don't you want to think about how the hot springs are formed?"

"I remember that my husband said that there are many hot springs here because of the proximity to the underground magma. ”

Mr. Cicada nodded, "Yes, in fact, there may be an underground water basin above the magma under this mine, where the water is continuously heated by the magma, and hot water gushes up from the cracks in the rocks to form a hot spring." ”

The Demon Sword seemed to understand something, and the eye-like sword head glared at the circle and said, "Sir, you mean that the underground water on the magma is the secret realm we are looking for, and the hot spring is the passage connecting the secret realm?"

Honggu's eyes lit up and said: "When you say that, I seem to have found a problem! Under normal circumstances, Da Yin should be able to detect the waters under the spring, but I can't, which means that there is some force here that is deliberately hiding the secret realm connected by the spring!"

Mr. You Guang seconded: "Yes, I should be able to see the area under the spring with the wall insight, but the fact is that I didn't see it, which means that there is a strong force that can block the vision of the eye of the sky." ”

Mr. Cicada said: "It seems that the secret place we are looking for is under the spring, and some people don't want to be discovered there." ”

Mr. You Guang said, "Who do you think it will be? Mr. Xiangxiang, or a Esoteric monk?"

"It's all possible, but we don't have a chance to know the answer until we go down, but we have to go down from the spring, and we have to get smaller. After Mr. Cicada finished speaking, he turned his face to look at Sima Chengzhen and the five people.

"It's not a problem, let's go into the puppet together, in case there is a thousand-handed demon toad imprisoned below, we can also work together to deal with it. With a wave of his sleeves, Mr. You Guang teleported everyone into the puppet.

They happened to be in a hot spring cave at the moment, and Mr. You Guang harnessed the puppet, exerted the size of the Tiangang mana, hidden the form, and threw himself directly into a nearby boiling spring.

At this scale, the Xuanwei algae in the boiling spring looks so huge, and the structure is also clear at a glance, in addition to the Xuanwei algae, there are many strange-shaped creatures in the water, some are spherical, some are columnar, and most of the surface has slender hairs, and some columnar creatures have relatively long fine hairs on the tail swinging, so that they can swim in the water.

These were huge in their eyes, and the structure was clear at a glance, and there were some small balls of various colors that looked like they were the size of them, in groups of three or five, clustered together, and did not look like creatures, and they did not know what they were.

Mr. Cicada said: "Old ghost, you are too exaggerated, although the crack in the rock is small, you can change into the size of a mosquito and go down, how can you change to a subtle size all of a sudden, are you not afraid of being eaten by the small insects in the water?"

Mr. You Guang said: "Just kidding, they can eat us? Then I haven't cultivated for nothing for two thousand years? I just want to take this opportunity to let Sima Xiaoyou and them take a look at the subtleties of microorganisms and minerals in the water." ”

The strangely shaped microorganisms in the water are the so-called bacteria in modern biology, which the ancients believed to be invisible insects.

"A bowl of water in the Buddha's view, 84,000 insects ......" Feng Luqi sighed, "I can now understand the meaning of this scripture better than ever!"

Sima Chengzhen said curiously: "Isn't the gateway of the Qimei Master's Sect in the Western Great Qin? Why do you seem to be quite familiar with Buddhism?"

Feng Luqi said: "I dare not be familiar with it, our ancestor of Dongtian was a prince when Zhou became the king, but he traveled all the way from Tianzhu to the Western Great Qin, although there was no Buddhism in the world at that time, but the ancestor still attached great importance to the cultivation methods of India, so Buddhism later became a compulsory course for our Dongtian disciples." ”

Sima Chengzhen nodded, indicating that he understood, but did not say anything more.

Yu Yunluo suddenly asked Mr. You Guang, "Sir, are those small balls of all colors gathered together the subtle minerals you are talking about?"

Mr. You Guang nodded and said, "Yes, these are mainly the subtleties of pyrite, sulfur iron ore, and sulfur copper ore, which are formed by the very fine polymerization of copper and iron and the very fine of sulfur. In fact, with the current cultivation of the five of you, the Heavenly Eye can already be microvised, and if you have the opportunity to remember to observe the microscopic world with the Heavenly Eye more in the future, you will naturally understand. In particular, if you want to refine the art of change, you need to understand the laws of the microcosm. ”

Yu Yunluo said: "Then I have figured out the laws of the microcosm, is it also helpful for refining the Danshu?"

Mr. You Guang nodded and said, "The change in the ding, the subtle microfiber." Figuring out the laws of the microcosm is, of course, also necessary for refining the Danshu. ”

As he spoke, Mr. You Guang had already harnessed the puppet to approach the boiling spring, only to see that the spring was like a large chimney, spewing smoke upwards.

Mr. You Guang had been driving the puppet to swim down before, and when he saw the smoke spewing out of the spring, the mineral subtlety was very dense in it, and he was afraid that the puppet would not be able to withstand the impact of the mineral subtlety, so he used the water avoidance trick to protect the puppet in a bubble.

Since the puppets were now on the subtle scale, when the water avoidance technique was successfully cast, they immediately observed that the water sub-subtle composed of two kinds of three infinitesimal micro-particles was broken down by mana into two simple subtleties, both of which were formed by combining one subtle in pairs, one of which was filled with bubbles, and the other was outside the bubbles, spraying upwards and pushing them towards the spring.

Sima Chengzhen said in surprise: "Honggu, I remember what you said that the water avoidance trick can decompose water into two kinds of qi, one can open the bubbles for the caster to breathe, and the other can push the bubbles, and it is lighter than air, and the air bag can float in the air when you hold it up, what I see now should be the subtlety of these two qi, right?"

"Yes. Honggu affirmed Sima Chengzhen's speculation, and then said to Mr. You Guang: "Sir, you have already seen everything you should see, make the puppet bigger, it is the size of a tadpole, it is enough to pass through the spring." You see the spring spewing thin smoke, and the minerals in it are as dense as locusts, and it is very difficult for you not to bump into them. ”

"Yes!" Mr. Yuguang immediately cast his wishful word, turned the puppet into the size of a tadpole, and rushed into the spring by avoiding water.

This time it became larger, and they immediately could not see the mineral subtleties in the smoke. And the size of the Ruyi changes, the strength is also big and strong, and the puppet has become bigger, and it is naturally not afraid of the subtle collision of minerals in the smoke.

Mr. You Guang drove the puppet through the cracks in the rocks, which were filled with hot and turbid boiling water, three or four times the temperature of ordinary boiling water, and mixed with a large number of mineral subtleties.

The puppet walked through the cracks in the rock for more than ten miles, and Mr. You Guang suddenly couldn't see the rock wall, and there was still boiling and muddy water around him, but other than that, he couldn't see anything else.