When he arrived in the city, Yang Mu walked into a blacksmith shop, there was no place like a fang market nearby, so he could only come here to try his luck.

"Guest officer, please, what do you want to buy?" The guy at the blacksmith shop was very enthusiastic and beckoned Yang Mu in.

"I want some materials to engrave the formation, I don't know if there are any here. ”

"Formation...... It seems that this guest officer is also a man with ideals. The boys laughed. The formation path has long been lost, but there are still many monks who are not willing to give up, and they want to try to restore the formation path according to the records in the ancient books.

Of course, these people have not achieved much, so Yang Mu came to find the materials for the inscription formation at this time, and everyone laughed tacitly.

Yang Mu left here immediately, and it was normal to be laughed at by these people, after all, except for Yang Mu, there are probably few people in today's secular world who really master the formation path.

"Guest, wait a minute. After Yang Mu left the blacksmith shop, a man followed, "There are very few materials for inscription formations to sell in this city now, if you need it, I can tell you a place." ”

Yang Mu looked at this guy's philistine expression, so he had to sigh helplessly, took out a silver ticket and stuffed it into his hand.

"The guest officer is really a cheerful man," the man opened his mouth wide, not expecting that he had made a windfall, "you go from that side, turn the corner, and go like this again, and you will see a desolate courtyard." There's a weirdo living there, studying these things all day, don't look at everything that's broken, but he's hoarded a lot of this material. ”

After Yang Mu understood the situation, he rushed to the place that this guy said, thinking that it would take a lot of trouble, but he recognized the place at a glance. If nothing else, this courtyard is really dilapidated, far beyond Yang Mu's imagination.

There was a big yellow dog on a leash in the yard, lying listlessly on the ground, and debris was piled up around it. The only thatched hut was not much better than the one Yang Mu had seen before that had not been taken care of for several years. There was an old man in the room, dressed in clothes commensurate with the courtyard and in tatters, and he walked out of the room while stretching his waist. Seeing Yang Mu, the old man was obviously stunned.

"This face is somewhat familiar, you must have lived in this neighborhood before," the old man asked, "what is the matter with coming to me?"

Yang Mu nodded, the Badaomen is the most prestigious big family in this city, and as the former head of the small family, he is naturally known by many people, "I heard that you have a lot of materials here for inscribed formations, I want to purchase some." ”

"No, don't sell, you go back. The old man waved his hand, "It's just a waste to give these materials to you, so I took great pains to purchase all the materials in this city and keep them for my own use." ”

Yang Mu frowned, "The formation path in this world has long been lost, what's the use of you keeping these in your own hands? He was anxious in his heart, if he couldn't create some formations, he had no chance of winning against Yang Zhengguang.

In the previous fierce battle with Zhang Che, Yang Mu had clearly seen the strength of the Six Realms Divine Skill, which was indeed not comparable to ordinary exercises, and Yang Mu needed the help of some formations in order to have the strength to fight when facing Yang Zhengguang.

"If you say you don't sell it, you won't sell it," the old man shook the pu fan lightly in his hand, "You young people waste time on these formations, it's better to concentrate on cultivation, the old decay is hopeless in the cultivation path, and one day there will be a breakthrough in the formation path." ”

"Stubborn ......" Yang Mu had no choice but to say helplessly to the old man, "I only need some materials, and it won't affect your research." In exchange, I can teach you a formation. ”

"Just kidding!" the old man's eyes widened, and he suddenly looked a little angry, "I've been studying the formation path for decades, and that started before your kid was born, and even then, I know that I haven't been able to master a formation now. You young man can talk big, and the ghost believes that you can pass on the formation to me!"

"Since you don't believe it, why don't we make a bet," Yang Mu smiled bitterly, secretly saying that this old man is really difficult, "If I can engrave a formation on that chain of dogs, you will sell me some more materials, and if I can't, I will dispose of it." ”

The old man looked at Yang Mu carefully, and his cloudy old eyes kept thinking about it, and he spoke for a long time, "Yes, but if you can't engrave the formation or play tricks on it, you have to worship me as a teacher and stay here to work as a coolie for me." ”

"This ......" Yang Mu was stunned, he didn't expect this strange old man's request to be so strange.

"Why, don't you dare?" the old man sneered, "I don't need much money at my age, but I don't need a boy to work for me." ”

"Why don't you dare," Yang Mu gestured, "Since you agree to bet with me, take some materials out first, and I'll prove it to you." ”

"You'd better not be tricked, this dog is psychic, and if I give you the order, he'll tear you to pieces. The old man reminded him lightly, and then went back to the house to get the materials.

Yang Mu didn't pay attention at all, but after listening to the old man's words, he carefully looked at the big yellow dog.

"What's the situation...... Yang Mu was simply startled when he saw it, and the dog's body actually exuded true qi fluctuations. What's even more terrifying is that Yang Mu can't see through this dog's cultivation, that is to say, this big yellow dog's cultivation is at least above Yang Mu!

"Rare and weird. The old man had already walked out at this time, glanced at Yang Mu with disdain, and then began to take off the iron chain used to tie the dog.

Yang Mu was a little skeptical at this time, a dog could have a stronger cultivation than him, and this old man still looked like he should be. Ignoring these no more, Yang Mu was ready to leave this ghost place after finishing the deal with the old man.

However, just as Yang Mu took the chain from the old man's hand, Yang Mu gasped again. He originally thought that this was just an extremely ordinary iron chain, but after getting it in his hand, he found that this iron chain was actually made of Meteorite Cold Iron, which was far comparable to extraordinary iron.

Glancing at the old man, Yang Mu felt more and more that this old man was not simple. If it is just a coincidence that he has a powerful yellow dog guarding the house, then how can this dog leash be handed down to the next generation?

The old man still looked calm, sitting aside and waiting, "Boy, are you okay?"

Without thinking about it anymore, Yang Mu tried to calm down his mood and began to engrave the formation base on the dog chain. There was a starry cold aura in the cold iron of the falling star, but this cold aura was the same as the cold qi produced by the Extreme Abyss Divine Decision, and Yang Muneng could easily guide it, so that he would not be affected at all when he engraved the formation.

After the formation base was drawn, it suddenly merged with the dog chain, and the materials that formed the formation base disappeared in the blink of an eye. The old man was startled and stood up, originally he was thinking about it, ready to see what trick Yang Mu wanted to play. But when Yang Mu did this, he knew that the kid in front of him was indeed proficient in the formation path.

This kind of speed of creating a formation base can only be recorded in the classics, and the old man was secretly shocked, he had studied for so many years, and he was only able to make this step. After the formation base was completed, he had no way to explore the rest of the part.

However, Yang Mu's hands were still moving, the original heavenly evil fire released a weak aura, slightly burning the dog chain, Yang Mu's wrist shook continuously and rapidly, and continued to exert one simple and mysterious pattern after another on the foundation of that array. It was as if the materials had been spelled, neatly arranged on the base of the formation.

After about an hour, the complicated and complex patterns were finally completed on the dog chain, Yang Mu picked up a carving knife given to him by the old man, and his hands were cold, completely retaining those lines on the dog chain. Yang Mu's wrist shook slightly and rapidly, like a precision instrument, and sparks and debris continued to splash between the carving knife and the dog chain.

The old man's eyes widened as he watched from the side, you must know that the meteorite cold iron can be called a treasure of heaven and earth, and after Yang Mu's treatment, it actually became like silt and was cut at will.

"It's done," Yang Mu slowly exhaled a breath of turbidity, handed the dog chain to the old man, and then said, "I hope you don't break your word." ”

The old man gently stroked the dog chain, and at this time there were many more lines on it, which were very simple, but they were hidden mysteries, which seemed to be integrated into some kind of "Tao", which contained mysteries. The original color of the dog chain is the same as that of mortal iron, and you can see the hazy layer of silver brilliance on it when you use your true qi, and at this time, the silver brilliance has completely dissipated, and this dog chain looks completely no different from mortal iron.

"How does this formation drive?" the old man frowned, although he had been immersed in the formation path for many years, it was the first time he had seen an object that had successfully engraved the formation. It's a bit ironic, but the formation of this world has indeed been lost, if he hadn't met Yang Mu, I'm afraid he wouldn't have seen the real formation when he died.

"Just infuse the True Qi into it, and this chain can now be used as a weapon. Yang Mu said lightly, "I have already engraved the formation, should you also fulfill your promise." ”

The old man looked at the dog chain in his hand, his eyes were hot, and after a while, he seemed to be ruthless, and a pure true qi was carried in his hand, pouring into the formation. I saw that the dog chain suddenly released a dazzling golden light, waving in the air like a reviving poisonous snake, the old man's mind moved slightly, and he pointed at the big yellow dog, and the dog chain burst out like lightning, entangled the big yellow dog to death.

The big yellow dog was still napping on the side just now, looking listless and sluggish, but at this time he was suddenly locked by the dog chain, and suddenly whimpered. It tried to break free, but even with all his might, he could only move the soles of his feet, which was very funny.

The old man stopped immediately, and directly stopped supplying true qi to the dog chain, and the formation was dimmed and extinguished, and the big yellow dog also broke free from it. "Woo Wang-" The big yellow dog looked angry and pounced directly on the old man, who kept laughing and apologizing to the big yellow dog.

Yang Mu was shocked again in his heart, and at the moment when the old man released his true qi just now, he felt that his spirit had become trance-like, and he was shocked by an invisible coercion. This old man looks inconspicuous, like a madman who has studied his true qi here for many years, but he didn't expect to be a strong man.

Or, could this old man live here and pretend to be stupid just to hide his strength? Yang Mu thought like this, and a layer of cold sweat already broke out on his back.

"Naturally, I won't break my promise, you come with me. The old man greeted Yang Mu and walked into the house first.

Yang Mu followed him in, this grass hut was also very messy, very similar to the situation in the courtyard, all kinds of materials were stacked in various corners at random, I don't know whether it was sloppy or extravagant.

"For your safety, you're going to answer me a question before I sell you these things. Just as Yang Mu was about to select the materials, the old man's expression suddenly became serious, and the big yellow dog also sensed it, and barked twice.