Chapter 749 There is something fishy indeed

Green crystal: a crystal containing mysterious power

Wu Fan picked up a piece of green crystal from the ground and couldn't help but use the identification technique again. The feedback information he got was still the same as before.

Wu Fan couldn't figure out whether this "mysterious power" was Wu Fan, and he didn't even know who to ask. However, just for the fact that it could be used to create legendary weapons and equipment, these green crystals were invaluable, even more valuable than the metal wall he found in the back mountain of the Hermit Village.

Therefore, there was no need to consider it at all. Wu Fan would definitely not give up taking these green crystals.

Then, Wu Fan began to pick up these green crystals. There were quite a few green crystals in the cave, on the ground and on the surrounding rock walls. Wu Fan didn't let any of them go. He picked them up one by one and put them all in his backpack.

Because they belonged to the same material, these green crystals only took up one space in Wu Fan's backpack. No matter how many he picked up, the backpack would not be full.

It took Wu Fan two or three hours to clear all the green crystals in the cave. The cave, which was originally bright, had become much darker.

After looking at the entire cave and finding that there was no green crystal left, Wu Fan stepped forward and prepared to leave.

However, after just two steps, Wu Fan stopped again, looked around, and looked thoughtful.

"Is this cave really that big? Is this the end? Is it really a dead end?" Wu Fan said to himself: "This green crystal is a treasure, but it is not far from the entrance of the cave. This is too 'luxurious'."

Thinking of this, Wu Fan turned back and took out a green crystal to act as a flashlight. The faint blue light emitted by the green crystal itself provided Wu Fan with some vision.

Wu Fan kept groping and knocking on the surrounding rock walls with his hands, but still found nothing, just like yesterday, as if this rock wall was really just an ordinary rock wall.

After searching for a long time without any discovery, Wu Fan was about to give up when he suddenly slapped his head.

"How could I forget it!" Wu Fan said self-reproachfully.

Black Jade Mechanical Technique!

This is one of the three treasures Wu Fan obtained in the Tianliang Mountain Secret Realm before!

Wu Fan has seen the power of the Purple Lightning Sword Manual, which is quite powerful.

But Wu Fan has never used the other two treasures: Qingyang Pill and Black Jade Mechanical Technique after learning them.

Qingyang Pill is a holy medicine that can help masters at the peak of the transformation realm to break through to the innate realm. Wu Fan is not at that level now, so he doesn't need it at all.

Black Jade Mechanical Technique, Wu Fan has never used it before, causing him to almost forget that he has such a skill, but this skill is quite useful at the moment.

The Black Jade Mechanism is what Senior Ruan Qing learned after studying the Mohist Mechanism for many years. There are many aspects involved in the Black Jade Mechanism, and a lot of knowledge is quite profound. If it were someone else, even if they studied it for a lifetime, they might not be able to master the Black Jade Mechanism, but Wu Fan took advantage of the game world and easily mastered it completely.

"If you can't find anything strange by using this skill, then this should be the case. This is an ordinary cave." Wu Fan whispered to himself while activating the Black Jade Mechanism to observe the surrounding rock walls again.

"Found it! Sure enough, there is something strange!" After using the Black Jade Mechanism, the rock wall in front of Wu Fan was no longer an ordinary rock wall in his eyes, but like a huge chessboard, and some protruding stones on the rock wall were small chess pieces on the chessboard.

"Fortunately, when the two beasts fought before, they didn't destroy the rock wall. Otherwise, even if I had the Black Jade Mechanism, I could only sigh at the wall." Wu Fan said thankfully.

Seeing that there was something strange about the rock wall, it was a big step towards success. The information provided by Wu Fan's black jade mechanism knocked off a stone in the rock wall. Then, the remaining stones seemed to be activated. Wu Fan moved them one by one in order, just like playing chess on a chessboard.

"Clang!"

After Wu Fan moved the last chess piece, the rock wall suddenly made a dull sound. Then, the rock wall, which was originally so tight that there was no gap, suddenly cracked from the middle and moved to both sides, and a corridor about one meter wide appeared.

Wu Fan looked at the corridor that suddenly appeared and wanted to see the situation inside clearly. However, the corridor seemed to be very long, and the surrounding light was dim, so Wu Fan couldn't see clearly at all.

After a little hesitation, Wu Fan walked into the corridor with a sword in one hand and a green crystal in the other.

Dust kept falling in the corridor, making the surrounding air a little turbid. Obviously, the mechanism here should not have been activated for a long time. Wu Fan's steps were lighter and his movements were more cautious.

Wu Fan walked about 50 meters along this narrow corridor, and suddenly the view in front of him became clear, and the familiar green light appeared again.

"So... so many green crystals!" Wu Fan looked at the densely packed green crystals in the space of about 400 to 500 square meters in front of him, and couldn't help but exclaimed.

The space here is somewhat similar to the cave before entering the corridor, but the space here is larger, and the surrounding rock walls and even the ground are covered with green crystals. Even among these green crystals, Wu Fan also found a small number of red crystals.

Red crystal: a crystal with mysterious power.

Wu Fan picked up a piece of red crystal for identification, and the information he got was exactly the same as that of the green crystal. It seemed that the red crystal and the green crystal belonged to the same species. However, Wu Fan could feel that the energy contained in the red crystal seemed to be more and richer than that of the green crystal. Wu Fan could even feel the surging power in the crystal.

"Baby, put it away first." Wu Fan put the red crystal into his backpack without hesitation. At the same time, like before, he began to sweep all the crystals in the surrounding space. Whether it was red crystal or red crystal, Wu Fan did not let go of any of them.

As more and more crystals were picked up, the smile on Wu Fan's face became more and more. Even if he could not find anything else in this space, he would make a fortune this time.

It took Wu Fan several hours to pick up all the red crystals and green crystals in this space. At this time, Wu Fan noticed that there was a small pool of water in the middle of this space. In the pool, there were two stones more than one meter high.

Mother of Green Crystal: can produce Green Crystal!

Mother of Red Crystal: can produce Red Crystal!

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