The so-called "diamond", in fact, is commonly known as diamond, because it is mostly used as a processing tool, so it is also known as diamond diamond, this stone is known as one of the hardest things in the world, only with the power of flesh and blood, it is almost impossible to destroy it.

The stone lock in front of Cheng Yue is made of diamond, and this lock is not an ordinary diamond lock, there are faint mana fluctuations on the surface, it is obviously a magic weapon dressed in mortal skin!

Cheng Yue thought for a while, and didn't use Tai'a to split, but took out the flywheel from his sleeve and smashed it according to the stone lock!

"Bang!"

Something strange happened, although there was a muffled sound, but Cheng Yue was sure that the flywheel had not been able to contact the diamond lock at all, and when it was still a line away from the lock, it was suddenly bounced open by a powerful mana fluctuation. Therefore, it was not so much that it smashed on the diamond lock just now, but rather that it shook the mana fluctuations emitted by the stone lock.

"Boy, this lock can't be broken open with a foreign object, and if you want to open it, you can only rely on your own flesh and blood. The flywheel's divine thought sounded in Cheng Yue's heart at the right time.

Cheng Yue frowned, in order to confirm the truth of what the flywheel said, he didn't use the flywheel to smash it this time, but raised his hand and punched the diamond lock.

This punch is not heavy, and the speed is not very fast, and the mana fluctuation of the diamond lock has time to intercept it, but surprisingly, this time the powerful mana fluctuation did not appear at all, as if it did not exist in the first place.

"Really?"

Cheng Yue said with a depressed face, it turns out that the flywheel is not lying this time, this magic weapon lock will only intercept and resist the attack of the weapon magic weapon, but not the flesh and blood person itself.

It's just that...... Even if this lock can't resist the attack of the human itself, how can it break through the incomparably hard diamond with only the flesh and blood of the human body?!

Cheng Yue was at a loss, although he didn't do his best with the punch just now, the force was not light, it was close to 10,000 catties and two blows, but it failed to leave a trace on the diamond lock.

"Boy, if you can't do it, go back! After practicing for a hundred and eighty years, you may be able to break this lock. The flywheel began to pour cold water on Cheng Yue again.

Cheng Yue glared at the flywheel, and he didn't mean to listen to persuasion at all. He is a non-do, non-stop character, since he has come, there is no reason to return in vain.

Unwillingly, Cheng Yue decided to fight with all his might, leaned back, retracted his fists, and tried his best to accumulate strength.

It's just a little frustrating that at this time he is floating in the bloody water, there is no root under his feet in the water, and the resistance to action is also great......

"Boom!"

Cheng Yue tried his best to smash the stone lock three times in a row, but in addition to the severe pain in the hand bones, he failed to cause any damage to the diamond lock.

"Damn, is it really going to be a futile?" Cheng Yue stared at the diamond lock, his teeth almost crushed.

"Hahaha, that's the limit of a reckless man!" Flywheel laughed heartily, overjoyed.

How is it different from sneering at Cheng Yue at this juncture to rub salt on his wounds? Cheng Yue was so angry that he turned around and wanted to kick the flywheel, but as soon as his leg was halfway raised, he was suddenly stunned!

"Wait, reckless?!"

Cheng Yue's eyes suddenly lit up, the so-called "reckless" refers to those vulgar people who can't use their brains and can only rely on stupid strength to do things, if he Cheng someone's performance just now is a reckless man, then what is the opposite approach? Thinking of the previous thing of playing dumb riddles to find the entrance to the third layer, Cheng Yue instantly understood where he was wrong!

"The test of the third layer has nothing to do with strength at all, it is completely human wisdom that is tested! Whether it is to enter here or to open this diamond lock! Brute force is of little use, only outwitting can succeed, am I right?!" Cheng Yue turned his head to stare at the flywheel and said with a smile.

There was a rare silence for the flywheel.

Cheng Yue pursed his lips and didn't pay attention to the flywheel anymore, but leaned his face to the diamond lock and observed it carefully.

The shape of this stone lock is similar to those stone tablets outside, it is very rough under the rough look, only a closer look can be found, the beauty of the atmosphere and the rhyme of the avenue contained in this production process, the so-called avenue to simplicity, back to the basics, is this truth.

Cheng Yue quickly found the keyhole of the diamond lock, and with a roll of his eyes, he injected a trace of true yuan mana into the keyhole, and then used his divine thoughts to control it into substance, and finally turned it into a key.

"Open!"

Cheng Yue snorted lightly and twisted the True Yuan Force Key, wanting to open the diamond lock.

But how can things be so simple? Just listening to the "rattle", the True Yuan Key failed to open the stone lock, and it was broken by itself.

Cheng Yue was a little disappointed and took out half of the key, raised it in front of his eyes and looked at it: "It seems that it is not hard enough!"

"Give it up, how can the key condensed by the True Yuan Force be able to open a lock of this level?"

Cheng Yue stared at the flywheel with a strange expression and asked, "Have you been giving me hints vaguely?"

"Where, don't think about it!" Flywheel immediately denied.

Cheng Yue pursed his lips: "Other girls' tsunderes will look cute, and you will be disgusting if you break the iron ring and be tsundere!"

"You're disgusting!" Flywheel yelled.

However, Cheng Yue ignored it again, and this time he used the power of the Taiyin Law to condense an incomparably hard Xuanbing Key, trying to unlock it again.

However, surprisingly, this ice key was also broken in the keyhole in the end.

Cheng Yue used his divine thoughts to control the broken key, re-transformed it into an energy form, and re-emptied the keyhole.

This time there is no need to be reminded by the flywheel, Cheng Yue has already learned a lesson in himself: "Xuanbing is like pig iron, although it is extremely hard, but the harder it is, the more brittle it is, the toughness is insufficient, the elasticity is worse, and it is easy to break when it encounters hard objects and heavy objects, it seems that I need a key with excellent toughness and medium hardness!"

"That's true, but can you construct such a key?" Flywheel asked with a sneer.

Cheng Yue replied without thinking: "Of course, who do you think I am?"

With that, he used the Taiyin Law and the Law of Life, as well as some True Yuan Mana, to create a dark red mixed power.

Flywheel smiled helplessly: "Boy, you won!"

Cheng Yue was not so happy as early, and concentrated on injecting the power of mixing into the keyhole, and then condensed into a dark red key.

Holding this key, Cheng Yue was a little worried, you must know that this is his strongest strength, if he doesn't succeed, he is afraid that he will really have to go home!

"God, give me some face, you must let me succeed!" Cheng Yue prayed silently, and then turned the key.

"Click!"

As the key turned, a series of mechanical sounds sounded, and finally the diamond lock opened!

"Ahaha......"

Cheng Yue was overjoyed, and when he opened his mouth, he wanted to laugh, but he forgot that he was under the water, and a large piece of fishy blood poured into his mouth, choking him violently.

"What does it mean to be happy and sad? This is to be happy and sad. The flywheel teased faintly beside him.

Cheng Yue didn't be polite to it this time, and kicked it aside.

Before entering the third layer, Cheng Yue hesitated, picked up the diamond lock, stuffed it into a Qiankun bag around his waist, and put it away like a trophy.

"Are you picking up rags? Why do you want everything?" asked Flywheel disdainfully.

Cheng Yue glanced at it: "What do you know about a broken iron ring? This lock is made of diamonds, do you know what the price of diamonds on the market is now? A lock of this size is no problem at all to sell it for more than 100,000 taels of silver!"

"Money fan!" Flywheel was full of disdain.

Cheng Yue didn't bother to talk nonsense with it, grabbed it, stuffed it into his sleeve, and then pushed the wooden door in front of him.

I don't know how many years this wooden door has been soaked in blood, but it has not been damaged in the slightest, which shows how extraordinary its material is, Cheng Yue didn't take much effort to push it open.

Immediately afterwards, a bright golden light burst out from the door that was pushed open, completely engulfing Cheng Yue!

"This is actually a portal!" Cheng Yue couldn't help but exclaim.

The next moment, the cold and dry air replaced the fishy smell of blood, completely enveloping Cheng Yue in it!

Cheng Yue felt his feet on the solid ground, and quickly opened his painful eyes that were pierced by the golden light before.

Then, he was dumbfounded.

"Could it be that I was teleported to the outside world?!" Looking at the ice and snow world composed of black and white in front of him, Cheng Yue couldn't help but ask himself.