Xiao Hei rubbed his little head, not knowing what he said wrong, so he naturally had a lot of curses in his heart.

"Don't worry about it, please help me find out what spiritual herbs are in this cave." Xiao Fanyun urged.

"There is no spirit grass." Xiao Hei said angrily: "There are many demons and ghosts."

This demon cultivator's cave was built in a huge natural cave. In the center of the cave is a seven-story black pagoda. Ten stone pagodas were built around the pagoda, and then each stone pagoda was extended to a wire tied to the black pagoda.

Then look at the ground around the towers, ditches were dug into a formation diagram, and then the cold spring in the ground was drawn out to form a ten-cold yin formation.

Ordinary people will not feel any discomfort when entering this place, but they will be frozen into ice sculptures within thirty breaths and die without any consciousness.

Xiao Fanyun walked forward a few steps and saw many rotten corpses scattered on the ground.

Xiao Hei jumped up and pulled a few, and judged: "These guys were frozen by the cold air and then drained all their yang energy by this array."

"Remember to wash your claws after touching dirty things." Xiao Fanyun walked around the corpse and walked to a stone tower to find that the stone tower, about meter high, was rooted in the ground. After careful look, he found that the stone tower was actually made of a whole huge stalagmites.

Xiao Hei jumped over and touched the stone tower curiously. He immediately shrank his claws and blew the air, saying, "Is this stone tower a stove of Master? Why is it hot?"

Xiao Fanyun reached out and pressed a stream of blue smoke, and said as usual: "These stone towers connect the cold springs on the ground, like ten heat absorbers, sucking all the heat in this cave into it, and then..."

Xiao Fanyun looked at the black pagoda connected to the ten stone towers: "Then transfer heat into this pagoda through these iron chains."

Xiao Hei said in surprise: "Then isn't this pagoda hotter? Why is that ancient magic cultivator's fee so much?"

Xiao Fanyun narrowed his eyes and looked at it carefully for a while, and smiled and said, "This seven-story pagoda should be a large alchemy furnace."

"Alchemy furnace?" Xiao Hei looked surprised and immediately sniffed hard but frowned and said, "Master, have you guessed wrong? This alchemy furnace obviously has no medicine at all, but I smelled a lot of resentful souls."

Xiao Fanyun said: "Because this alchemy furnace does not refine medicine stones, but...the soul of living people!"

"Hiss!" Xiao Hei was so scared that his hair stood up, and he quickly slid into the Taoist cuff: "Master, I am timid, don't scare me!"

Xiao Fanyun said lightly: "Since I said that this is a demon cultivator's cave, how strange is it to have a furnace that can sacrifice and refine living people? I have seen even more cruel ones as my master..."

"Master, please stop talking!" Xiao Hei curled up in a ball with his arms in his arms, trembling slightly.

Xiao Fanyun smiled and said, "Okay, okay, I won't talk about it anymore."

Xiao Hei then leaned over and asked, "Master, since this alchemy furnace is a demon cauldron, why didn't the big man in the dispersal stage destroy it?"

Xiao Fanyun looked around and said, "This furnace cauldron has been connected to the earth veins, and it will move the whole body. If it is forcibly destroyed, it will inevitably cause a terrible disaster. If it is not done well, it will cause a disaster. The cause and effect involved in it will be great. So that fellow practitioner just saved all the resentful souls in the furnace cauldron, leaving only a few evil souls to seal it here."

Xiao Hei suddenly said, "So that's it. No wonder I smelled a stench of resentful souls as soon as I came in. Since there are no treasures here, we should leave quickly."

Xiao Fanyun said: "This place has been exposed, and it will inevitably attract countless mortals to find out. Even if we tell them the truth, it may not stop the curiosity of some people. If we leave it alone, it will be a bad thing when the few evil spirits in the furnace and cauldron are full."

Xiao Hei asked, "Master, do you have a way to break this formation?"

Xiao Fanyun smiled confidently and said, "You have a wonderful method to break this formation. Do you want to learn it?"

Xiao Hei said expressionlessly: "Master, if you want to exploit me, this free worker, just say it."

"As a disciple, you should have the awareness of being a disciple!" Xiao Fanyun picked it up and said with a smile: "Besides, Master teaches his disciples by words and deeds, how can he say it is exploitation? Be good and obedient, and get the fish here for you to eat as soon as possible."

Xiao Hei bared his teeth and decided to accept his fate. After all, he could not beat him and could not escape. What else could he do if he had such a black-hearted master?

Next, under the guidance of the Taoist, the little black cat waved his claws and scratched it here and there, destroying the good formation in a mess.

"Master, is it any point in doing this?" Xiao Hei gasped for exhaustion: "Anyway, it's all about damaging. It's better to demolish these stone towers directly."

"What do you know?" Xiao Fanyun said: "The Ten Cold Yin Jue Array can actively absorb heat and inject it into the tower. I don't know how much heat it has accumulated over the years. If it is forcibly destroyed, it will be similar to detonating a large bomb. So my master asked you to change this array and slowly release the accumulated heat in the tower."

"Is this really effective?" Xiao Hei looked suspicious and suddenly noticed that the cold spring flowing in the ditch was rising, and it turned into a hot spring.

Xiao Fanyun said: "When the demon cultivator set up this formation, he obviously considered how to cool down. However, a furnace of elixirs had not yet been refined and was slapped to death by the master who came to the door."

Soon the entire cave became steaming and extremely stuffy.

Xiao Fanyun's expression was as usual, but Xiao Hei was so hot that he stuck out his tongue and quickly got back into his cuffs.

The hot steam quickly flowed outside the cave through the spring water, causing the lakes outside to bubble first, and then a little hot steam, just like a pot.

The mortal who had been guarding the lake was immediately startled by this wonder and quickly retreated a little.

Then the lake water became hotter and hotter, and it turned into a natural hot spring lake.

Zhang Defu was not sure, so he could only report the matter quickly and then continue to wait.

This wait takes three days and three nights.

Xiao Fanyun did not expect that even if the extremely cold spring cooled down, the heat in the tower would be discharged for three days and three nights before it was discharged.

Without the accumulation of heat, the originally dark seven-layer pagoda actually had large areas of cracks, and then peeled off the black hard shells, revealing a copper-colored metallic luster.

"Purple Gold Pagoda!" Xiao Hei immediately lit his eyes and said with a covetous look on his face: "Master, this alchemy furnace is actually made of purple gold! Let's carry it back!"

Xiao Fanyun chuckled and said, "To say it, otherwise, why would you spend more time for the teacher?"

Xiao Hei said contemptly: "Master, you have long seen that this alchemy furnace is extraordinary, and it actually keeps me in the dark."

"Okay, stop being angry." Xiao Fanyun stood up and sacrificed the flying sword and said, "I have just completed the first step. Next, I have to remove the evil spirits in the tower and carefully peel the furnace cauldron out of the earth veins."
Chapter completed!