Yang Feng was not interested in metallic skills, so he did not intend to study them, so this skills had no effect on him.

However, at the end of the exercises, some secret sword arts and experiences are recorded, which is worth Yang Feng's careful study.

Yang Feng read the technique from beginning to end, then put him back into the box, picked up another golden jade slip, and his spiritual sense entered it.

This jade slip records a body refining technique, the Golden Body Arhat Trick, which should be the body refining technique that Hu Shan used when he climbed the ladder before.

This body refining technique is quite extraordinary. After successful cultivation, you can use the golden body arhat, which is very powerful. However, if you want to practice this body refining technique, you must first master the metal law.

Yang Feng was no longer interested when he saw this. He took a look at the contents, then put him down, picked up the last jade slip and placed it on his forehead.

This jade slip records some elixir recipes, most of which are metal elixirs. Although the grade is not Dao Dan, most of them are earth-level elixirs, which are of great use for cultivators in the realm of true immortals who practice related skills.

Yang Feng's spiritual sense retreated, and a trace of doubt appeared on his face.

None of the three jade slips have records of the Spirit Gathering Sword Formation. Was it destroyed by Hu Shan?

When Yang Feng was thinking, he was about to put away the box.

At this moment, Yang Feng screamed in surprise, picked up the box and fiddled with it twice.

With a light sound, the box was divided into two from the middle, and there was a mezzanine below, with a gray thing in it, a bit like a piece of cloth, neatly stacked.

Yang Feng picked up the gray cloth and said in confusion: "What is this?"

This cloth is square and gray, like a rag that has not been washed for a long time, but if you look closely, you will find the patterns faintly revealed on the gray cloth.

These patterns look very strange, not ordinary array patterns and spiritual patterns, nor talismans. With Yang Feng's knowledge, he could not tell his origin at all.

However, these patterns reveal a hint of mystery, not simple patterns.

Yang Feng quickly shook his head, giving up thinking about these patterns, and looking at something else.

This thing feels very smooth and even a little cold. I don’t know what material it is made of.

Yang Feng tossed Huibu for a while, and even used the Spiritual Eye and the Eye of Time, but found nothing.

There is no spiritual fluctuation on the gray cloth. Apart from the patterns, there is no other mystery. It seems to be an ordinary gray cloth.

However, since this thing is collected by Hu Shan so carefully, it is definitely not a simple thing.

Yang Feng showed a thoughtful expression on his face, holding a gray cloth in his right hand, and couldn't help pinching his fingers.

Yang Feng whispered in surprise and looked at the gray cloth in his hand.

With Yang Feng's current strength, even if he pinched it casually, a piece of steel plate would be crushed, but this gray cloth was nothing, which was a bit strange.

Yang Feng's eyes flashed, his fingers were pressing, and there was nothing wrong with the gray cloth.

Yang Feng increased his strength again, but Huibu still had no change and easily endured his strength.

Yang Feng's eyes showed a trace of shiny light, and he grabbed the gray cloth with both hands and tore it hard, but there was still no fragmentation.

Yang Feng's heart moved, and a hint of joy appeared on his face.

Yang Feng spent almost half of his power just now, and even ordinary magic weapons could not withstand his tearing. It seems that this gray cloth does have other mystery.

Yang Feng wanted to see how tough this gray cloth was and increase his strength again, but until he used all his strength, he still couldn't tear the gray cloth.

He looked at the gray cloth with curiosity in his eyes.

After a moment of contemplation, he bounced his fingers and a ball of red flame flew out, wrapping the gray cloth.

The flames burned, emitting hot and high temperatures, but the ash cloth still changed nowhere.

Yang Feng waved his hand and dissipated the flames, and waved his hand and emitted a light of water, covering the object.

Slight blue light emerged in the water, wrapping around the gray cloth, but the gray cloth still did not change at all.

Yang Feng frowned slightly, and five fingers were opened. Five golden lightnings emerged, covering the gray cloth...

Half an hour later, Yang Feng looked at the gray cloth in his hand and looked helpless.

During this period, he tried almost all the methods he could think of, and even a stone was squeezed out oil.

But the gray cloth did not enter the oil and salt, and there was still no movement.

"What should be special about Hu Shan's things that he doesn't want to exchange for even if he loses his fortune. Forget it, let's study it slowly in the future."

Yang Feng smiled helplessly and put away the gray cloth.

At this moment, the blue light ball around Lu Yu suddenly flashed a few times, then decomposed and turned into a cluster of bright green light, blending into her body.

The woman opened her eyes and her expression had recovered most of her.

"Brother Yang, I'm sorry for letting you wait for a long time." She stood up and said to Yang Feng.

"It's okay. Let's see if there is a way to determine the approximate location of this area?"

Yang Feng waved his hand, glanced at the black stones all over the ground, looked up at the dark yellow sky, and said so.

"As far as I know, the terrain in the cold area is complex and the environment is different. There is not only one Gobi area like this. Just based on the situations I see now, I can't tell where this place is." Lu Yu shook his head and said.

"Then let's take a look around first. Although this place is desolate, you can't underestimate it." Yang Feng said, waved his hand to take out the flying boat and stepped into it.

Lu Yu naturally had no objection and jumped into the flying boat.

Yang Feng urged the magic trick with one hand, and the green light on the surface of the flying boat lit up and flew towards a certain direction.

The area here is like the Blizzard Ice Field that passed by before, and there is an invisible force, which limits the spread of spiritual consciousness. With the strength of Yang Feng's spiritual consciousness, it can only spread hundreds of miles away, so the flying boat's escape speed is not very fast.

After a while, Yang Feng raised his eyebrows slightly and looked in the direction ahead, and the flying boat under his foot paused for a moment.

"Brother Yang, did you find something?" Lu Yu asked.

"I discovered something, but it's not very precious. Forget it, let's go and take a look."

Yang Feng nodded, the flying boat deviated slightly from some direction, flew towards the front of the left, and soon flew more than 300 miles and stopped.

The two of them flew down from the flying boat and landed on the ground.

A large area of ​​purple-black mushrooms grew on the ground below, each of which was about stairs high, with dark purple round spots appearing on it, and the edges were bright red, looking extremely gorgeous.

This mushroom group covers a large area, about acres, as if a gorgeous sea of ​​flowers is growing on this desolate Gobi, which is very abrupt.

"This is Moyunmu!" Lu Yu's beautiful eyes lit up.

"Did you judge the location of this place from this moyun poisonous mushroom?" Yang Feng asked with a flash of eyes.

He has also read the records about the moyun mushroom. This mushroom contains highly toxic and can be used to refine some poisons or magic weapons with highly toxic attributes, but its toxicity is limited and only effective for cultivators below the True Immortal Realm. After the true Immortal Cultivators reshape the body of the immortals, this mushroom is basically invalid.

"No," Lu Yu said excitedly.

As she said, she took out a piece of green jade technique with her hands, waved her hand and made a blue light and penetrated it.

Green lights emanated from the jade technique and condensed into a green wall of light.

On the wall of light is a map, made of more than a dozen parts of different colors, and it looks incomplete, and seems to be about half the complete map.

"Is this the map about the cold realm you collected from Hei Island?" Yang Feng looked at the map and asked.

"That's right. According to the information collected by our Hei Island, there are nearly a hundred areas with different climates and environments in the cold area. Unfortunately, I only got map information from more than a dozen of them." Lu Yu nodded and said.

Yang Feng nodded thoughtfully and his eyes started to patrol back and forth on the light wall.

This map is made very finely, and some environments in different areas are outlined vividly. You can roughly judge the specific situation of those places from the map alone.

But I didn't find a map of the Blizzard Icefield, the Black Mountains, and the Black Sea that I just passed.

"I don't know the location of the three areas we passed before, otherwise I wouldn't have been so passive before." Lu Yu seemed to see Yang Feng's doubts and said.

"Then where are we at this moment?" Yang Feng asked again.

Only at this moment did he have a rough impression of the cold realm.

"Here, this black Gobi area is called Black Rock Gobi. According to the information we have collected, although there are three or four Gobi areas in the cold territory, only this black rock Gobi has grown a lot of moxa mushrooms. We should be here." Lu Yu pointed his finger again and pointed to a black area close to the above and said.

"It's good to find a location. It's too dangerous to break into this underworld like a headless fly." Yang Feng nodded and said.

"Speaking of this, the Black Rock Gobi is a safer area in these dozen areas. There are neither the cold beasts of the previous ones, nor the dangers of large-scale areas such as storms and cold currents." Lu Yu said.

"Then we are lucky, we were not teleported to the dangerous area at once." Yang Feng said without comment.

"Brother Yang said this, we are really lucky." Lu Yu said with a meaningful smile.

"Oh, what do you mean?" Yang Feng asked with his eyebrows slightly raised.

"Did Brother Yang see this place?"

Lu Yu's finger pointed again at the top of the black Gobi area, which was a large yellow area, the edge of the map.

"Is there anything special here?" Yang Feng glanced at it and asked.

"It's a desert area, we call it the endless sea of ​​sand, which is the end of the extreme north of the cold realm." Lu Yu said.
Chapter completed!