"Since Master Gongxi is so generous, he doesn't agree anymore, but he can't say anything. Shi Mu took the red token, checked it, nodded, and said:

As he spoke, he turned over his hand and took out the Fire-Crowned Demon Snake Demon Pill and handed it to the black-robed old man.

The black-robed old man took the demon pill like a treasure, and looked at it carefully in front of him, and the excitement in his eyes was undoubtedly revealed.

After a while, he took a deep breath, looked at Shi Mu, and arched his hand:

"Shi Daoyou, you have worked hard all the way, please take a rest here first, the old man will be lost first. ”

"Deacon Wan, greet Shi Daoyou for me, from now on, he will be the guest of honor of our Immortal Fire Residence. The black-robed old man gave a command, and then walked briskly outside, as if he didn't want to delay for a moment.

The red-robed middle-aged man hurriedly agreed, then turned around and said:

"Shi Daoyou, do you want to rest here for a while, and then I'll take Daoyou to see the lava pool in the afternoon?"

"Deacon Wan, if you have time, you might as well take it down now. Shi Mu said.

"Of course you can, Shi Daoyou, please. The red-robed middle-aged man said, walking outside first.

The two of them quickly walked out of the Immortal Fire Residence and walked towards the black mountain peak in the center of the city.

"This Black Flame Mountain in the city connects hundreds of active volcanoes in the area through underground fire veins, providing a steady stream of fire spirit energy to the lava pools on the mountain. The red-robed middle-aged man explained to Shi Mu as he walked.

"I see. Shi Mu looked at the black peaks that were getting closer and closer in front of him, and nodded thoughtfully.

In a casual conversation, the two soon came to the vicinity of the Black Mountain.

Previously, from a distance, this black peak was not necessarily very tall, but standing at the foot of the mountain at this moment, I found that this mountain was also two or three hundred zhang high, and it looked majestic.

Approaching the peak, you can faintly hear a rumbling sound coming from somewhere in the mountain, as if something inside is constantly hitting the mountain.

The red-robed middle-aged man kept walking with Shi Mu to the door of a large hall at the foot of the mountain.

The entrance to the main hall was guarded, but when he saw the red-robed middle-aged man and Shi Mu, he didn't stop them, and let the two walk in.

The two walked through the main hall and came to a black passage.

The black passage was quite long, and the two walked forward for a while, and there was a fork in the passage, and there was a faint red light in front of the fork, and there were some talking voices, as well as the sound of tapping.

"There are more than a hundred lava pools on the Black Flame Mountain, all of which belong to the City Lord's Mansion in principle. However, only one-tenth of it was retained in the City Lord's Mansion, and the rest was rented out in the form of auction years, which was the most valuable resource of this Red Flame City. At present, nearly one-fifth of this place has been rented by our Immortal Fire Residence, and most of it has been transformed into a refining workshop. There was a lava pool, which is now the No. 1 workshop of my Immortal Fire Residence. The middle-aged man in the red robe said.

Shi Mu's eyes showed a little curiosity, and he wanted to visit, but the refining workshop was the core secret of a weapons shop, and he, an outsider, was not allowed to go there.

The two continued on their way, and there were occasional forks in the passage on both sides of the passage, and after a moment they came to the bottom of the black passage.

There is a black stone gate several feet tall, with a flickering light on it, obviously a prohibition, and the two big characters "nineteen" are inscribed in the center of the door.

"Brother Shi, you can use that token to open the ban here. The middle-aged man in the red robe said.

Hearing this, Shi Mu took out the red token, injected true qi, and shook it at the stone door.

The light on the token flashed, and a glow flew out and hit the stone gate.

A burst of white light suddenly appeared on the stone door, spun rapidly, and dissipated after a moment.

The stone door made a few gurgling noises, and slowly opened, revealing a smaller black passage, and a scorching breath came to the face.

"The lava pool is underground. The middle-aged man in the red robe said and walked in.

The two walked into the stone gate and continued along the black passage, the black passage took on a spiral shape, heading towards the ground, and it didn't take long for an underground space of more than twenty zhang to appear in front of the two.

The entire underground space was shrouded in red light, and the walls on the ground were all red, emitting a crimson light, and the eyes reflected were a little unable to open.

Runes were inscribed on the walls and ground, forming a huge formation.

In the center of the underground space is a pool several zhang in size, surrounded by eight white pillars.

Inside the pool was tumbling red magma, bubbles popping up from time to time, surging and rolling.

From time to time, the magma swelled violently, and it seemed to be about to rise into the sky.

However, at this moment, a layer of white light emerges from the eight white pillars around the pool, condensing into a light shield that blocks the magma back.

The concentration of fire attribute in the entire underground space is extremely abundant, and it is extremely hot, and the air you breathe also makes your throat hot.

"This is the lava pool, what does Shi Daoyou think?" said the red-robed middle-aged man.

Shi Mu looked around the entire underground stone room, feeling the fire attribute aura here, nodded, and said with a look of satisfaction flashing in his eyes:

"Yes, better than I expected. ”

"It's good that Shi Daoyou is satisfied. The middle-aged man in the red robe said with a smile.

He immediately took out a piece of white jade from his body and handed it to Shi Mu.

"This jade slip records some forbidden instructions for the lava pool, and you will take a closer look at it later, which will help you use it here in the future. The middle-aged man in the red robe said.

"Thank you, Deacon Wan. Shi Mu took the jade slip and said.

"If Shi Daoyou has nothing else to do, then he will leave here. The middle-aged man in the red robe said.

"Deacons go slowly. Shi Mu arched his hand.

The red-robed middle-aged man returned the salute with his fists, turned around and walked out.

Shi Mu put the jade slip on his forehead, and his divine sense penetrated into it, and after half an hour, he opened his eyes, but the expression on his face was a little uncertain.

He walked briskly over to the eight pillars beside the lava pool, crouched down next to one, and tapped his hand twice on it.

The pillar opens a window-like lattice, and inside is a circular stone trough.

In the stone trough was a circular magic circle, on which were inserted seven or eight medium-grade spirit stones, and the magic circle was humming.

Shi Mu closed the window lattice of the stone pillar, came to another pillar, opened the mechanism, and the situation inside was the same.

After a while, Shi Mu looked at all eight pillars, his face was cloudy, and after a moment, he shook his head and sighed.

From the jade slip, he learned that the forbidden formation of this lava pool, called the Eight Gates Spirit Gathering Array, has extremely strong protection and prohibition ability, so he can gather fire attribute aura on the one hand, and suppress the lava pool on the other hand to prevent it from erupting.

However, in order to maintain this powerful formation, a lot of spirit stones are consumed, and according to what the jade slip says, I am afraid that eighty medium-grade spirit stones will be consumed every month.

It also takes a lot of money to arrange the Yinghuo Array, and there are other expenses for cultivating the Nine Turns Xuangong, although the spirit stones on his body are rich, they can't last long.

Shi Mu stood here for a moment, then turned and walked out of the lava pool.

He left the Black Flame Mountain, picked up the Blue Wing Speeder, and flew towards Yu Yi's residence.

Suddenly, Shi Mu glanced at Cai'er on his shoulder, and frowned slightly.

Since returning from the 100,000 volcanoes, Cai'er has been listless, looking groggy, and has rarely said a word along the way.

"Cai'er, what's wrong with you? Looking at you, aren't you a little uncomfortable?" Shi Mu raised his shoulders.

Cai'er's half-squinted eyes opened, glanced at Shi Mu, and shook her head.

"Didn't you inhale the miasma in the 100,000 volcano!" Shi Mu suddenly thought of something and hurriedly asked.

"No, it's just that I'm a little tired, and I should be fine with a rest. Cai'er said.

Shi Mu pointed his finger on the top of Cai'er's head, entered a true qi into his body, probed it, and found no miasma poisoning, and immediately breathed a sigh of relief.

"Okay, you take a break. Shi Mu waved his sleeves and put Cai'er into his sleeve, and the light of the Blue Wing Flying Car flashed and sped up.

After a few moments, he arrived at Yu Yi's residence.

"Brother Shi, you're back!Is this trip to the volcano going well?" Shi Mu had just fallen, and Yu Yi greeted him and asked with a smile.

"I encountered some accidents, but I finally got back the demon pill of the fire-crowned demon snake as promised, and Gongxi has rented the lava pool to me. Shi Mu said.

"Really? Congratulations to Brother Shi. Yu Yi smiled.

Shi Mu smiled, took out a piece of jade and handed it to Yu Yi, and said:

"Brother Yu, I have some things to buy here, you are more familiar with this Chiyan City than me, you can help me see where I can buy these things. ”

In the jade slip, there are materials needed to cultivate the Nine Transformations Xuangong, some fire-attribute pills, and the materials needed to arrange the Yinghuo Array.

Yu Yi took the jade slip, and his divine sense penetrated into it, but after looking at it for a moment, his brows furrowed a little, and it took a quarter of an hour for him to withdraw his divine sense, and after a little hesitation, he said:

"These things that Brother Shi wants to buy are quite rare, those fire-attribute pills have some ways to go down, but Huogang Stone doesn't know where to sell them again, this thing seems to be a kind of fire-attribute ore from the eastern region of the Xihe Continent, and this kind of ore is not produced near the 100,000 volcanoes. ”

When Shi Mu heard this, his brows suddenly furrowed.

Without the Fire Gang Stone, the Flame Circle could not be arranged.

"Brother Shi doesn't have to be anxious, he has shallow knowledge, and in some large shops, he may be able to find Huogang Stone. Yu Yi hurriedly said.

"Hopefully. Shi Mu sighed and said.

"As for the pills that Brother Shi needs, I will wrap it up on my body, and within three days at most, I will definitely buy the amount that Brother Shi needs. Yu Yi patted his chest and reassured.

"This matter is Shi's private matter, and Brother Yu has been troubled too much these days, how can I let you do things for me again, Brother Yu only needs to tell me where to buy the pill immediately. Shi Mu said.

"It's just a little thing, Brother Yu doesn't need to be polite to me, just leave the matter of the pill to you." Yu Yi smiled.

"Okay, then it's going to be a hassle for Brother Yu. Shi Mu hesitated, nodded and said, took out a small cloth bag casually, handed it to Yu Yi, and continued:

"There are 30,000 spirit stones in here, and there should be some balance after buying the pill, so it can be regarded as a little thank-you gift. (To be continued.) )