With that, Jau pressed down along the finger marks on the ground, and suddenly, almost the entire hall shook violently, and there was a rumbling sound, as if the entire underground building was about to sink into the ground.

"Two, hurry up, we have touched the formation, and this formation has already sounded the alarm, we only have one hour to use now, now, go to the third layer of the secret room immediately, as long as the protective formation is opened, the contents inside are ours!"

As he said this, Na Jia Wu took the lead and swept towards the secret room below, and Feng Ruo and the others also followed, and when Feng Ruo rushed to the third layer of the secret room that he had tried to explore to no avail, he was immediately stunned by the scene in front of him!

Because at this moment, this third-layer secret room is no longer what it was just now, but has become a huge room with a radius of hundreds of feet, in this room, a silver-white light curtain is slowly circulating, and under each silver light curtain, there is an extremely scarce material!

Looking at it roughly, I am afraid that there are at least fifty or sixty kinds, but this arrangement also made Feng Ruo gasp, because this is the strongest defense method of the Hidden Yuan Chamber of Commerce, each material is placed separately, even if someone breaks in, you have to attack these defensive covers little by little, if you want to take away all these fifty or sixty materials, I am afraid that it will take at least seven or eight days, and this time is enough for the reinforcements of the Hidden Yuan Chamber of Commerce to come in hundreds of waves!

"Seakers, Huo Daoyou, I said in advance, the three of us, as long as the ninth-level Heavenly Turning Inner Dan and the shell, you must first help open the defensive shield of these two materials, and then, you can choose one material by yourself, but I solemnly reiterate once again, we only have one hour!"

Naja Wu said quickly, his gloomy gaze directly locked on Feng Ruo and the cultivator surnamed Huo.

"Okay!

Feng Ruo replied very simply, as if he didn't care at all, and the cultivator surnamed Huo also nodded in agreement.

After confirming this, Feng Ruo and the five people quickly began to search, and the ninth-level Heaven Turning Inner Dan and the shell were quickly found, and they were cracked by Feng Ruo and the cultivator surnamed Huo respectively.

As for Jia Wu and the others, they were on guard while paying close attention to the actions of Feng Ruo and the others, and they were not very stupid to use the Natal Flying Sword to attack, because this small forbidden formation of the Hidden Yuan Chamber of Commerce was specially made, and unless it was an irreversible attack, any attack would be ineffective!

Of course, this formation has a disadvantage, that is, the range of defense will not be very large, at most it will not exceed about one zhang, if the range of protection is larger, then the strength of defense will be reduced accordingly, and similarly, if the range of defense is smaller, then the strength of defense will be increased accordingly.

To deal with this kind of formation, they can only rely on the formation master to crack it little by little, but obviously, the preparation of Jia Wu and the others is not very sufficient, or they are just taking advantage of the situation, so they only contacted a formation master in a hurry, but they were lucky enough to meet Feng Ruo.

At this time, the cultivator surnamed Huo was responsible for cracking the shell of the ninth-level Heaven Turning Ao, and the shell was not reduced to about one zhang by some method, so relatively speaking, the difficulty of cracking would be much reduced.

And what Feng Ruo needs to crack is the ninth-level Heaven-Turning Inner Dan, which is only the size of a fist, and the whole body presents a water-blue brilliance, although there is a formation barrier, but it can also be seen that this Inner Dan is extraordinary!

Not to mention Jia Wu and the others, even Feng Ruo himself, he was also a little excited in his heart, this is the Inner Dan of the ninth-level spirit beast, if all the materials in this secret vault are evaluated, this Inner Dan is undoubtedly the most valuable.

But it is precisely because of this that this ninth-level Heavenly Turning Inner Dan is actually protected by a full three-layer formation, and the difficulty is so great that it can be imagined!

It's just that Jia Wu and the others obviously want to try their luck, so they still monitor Feng Ruo and let him crack it!

At this time, Feng Ruo was always calm on the surface, and the strings of formations in his hands were quickly played, to be honest, if there was only one layer of defense outside this Inner Dan, he might be a little sure, but now it is a full three layers, especially when there is only one hour, it is almost impossible, even if he has the ability to portray his mind!, but Feng Ruo still went all out, and he didn't even hide his ability to portray his mind!

The reason is very simple, that is, he wants this ninth-level Heaven-Turning Inner Dan! Although he doesn't know why this ninth-level Heaven-Turning Inner Dan was not sent to Wanxian City for auction before, but since it appeared in front of his eyes, he will definitely not let it go!

Because if the shell of the ninth-level Heaven Turning Ao is the leading material for forging the Natal Flying Sword that is not bad, then a Natal Flying Sword made with the ninth-level spirit beast Neidan will definitely go to the next level in terms of effect and attributes!

At this moment, Feng Ruo even had several plans for refining the Natal Flying Sword in his heart!

It was precisely because of this desire that Feng Ruo even ignored Jia Wu and the other three people around him, and just entered the realm of selflessness with all his heart, and countless formations quickly changed and arranged in his mind, and then fed back to the outside formations, one ring after another, interlocking, just like this, little by little, the flaws in the unique formation of the Hidden Yuan Chamber of Commerce were understood, and then cracked little by little!

"Huh?"

Suddenly, Feng Ruo secretly wondered in his heart, because as the formation in front of him was gradually cracked, he actually found that this protective formation created by the Yin Yuan Chamber of Commerce alone was a little familiar, just like those individual small formations in the Nine Heavens Flowing Cloud Absolute Formation, such as the Wood Spirit Killing Formation that had always made him complain a lot!

Of course, the complexity of this protective formation can't be compared to the Wood Spirit Killing Formation at all, but there is indeed a similarity between the two formations, as if they were taught by the same person!

"Could it be that he created this protective formation, or is it not the apprentice of the Nine Peerless Old Men?"

This thought only dissipated in the blink of an eye, but it gave Feng Ruo a lot of inspiration, so he simply tried to crack it with his own Wood Spirit Killing Array Technique, which he had not yet mastered!

And this time, before the time of a cup of tea, the outermost protective formation was completely cracked, and at this time, the cultivator surnamed Huo on the other side had not made any progress in cracking it!

"Chakumen, keep up the good work! At this rate, you can still get a few rare materials!"

At this time, seeing that Feng Ruo had easily cracked the first protective formation, Jia Wu and the other three next to him had straight eyes, in fact, they were originally aiming for the shell of the ninth-level Heaven-Turning Ao, because among all the materials in this place, the protective formation of the Heaven-Turning Ao's shell was the weakest, but they didn't expect that the shell of the Heaven-Turning Ao had not yet arrived, and it was even more precious, so that they didn't dare to ask for too much that the Heaven-Turning Ao Inner Dan was actually going to be cracked!

Therefore, all of a sudden, the three of Jia Wu immediately surrounded Feng Ruo, which could not only supervise, but also prevent Feng Ruo from snatching this Neidan and escaping at the first time!