Chen Feng's eyes were solemn, staring at the cold iron gate in front of him, his face was not very good-looking.

The iron gate in front of him has complex and clear lines, filled with mysterious power, and what makes him even more afraid is that the cold air that spreads out from the surface of the iron door makes him feel terrifying.

In addition, on the surface of this iron gate, an extremely powerful prohibition was set.

This prohibition level is very high, it should be a large array at the peak of the Xuanji level, shrouding the surface of the iron gate, making the power of the iron gate even more terrifying.

Chen Feng tried to use brute force to directly blast open the iron gate, but he was blown upside down by the reaction force of the iron gate.

Moreover, the cold air that permeated the surface of the iron gate was very terrifying, spreading along Chen Feng's right arm and spreading to his whole body, almost freezing half of his body into ice cubes.

If it weren't for the fact that Chen Feng's body was extremely extraordinary under the blessing of the dragon soul, Chen Feng would have fallen when he bombarded the iron gate before.

"This is the deepest iron door in the underground secret room, and it is also the most powerful iron door, if you want to open this iron door, you must break the prohibition on the surface of this iron door!"

Chen Feng's eyes showed a solemn expression, he knew that it was basically impossible to forcibly blast open this iron gate.

Thinking of this, he sat cross-legged, waved his sleeve robe, summoned one array flag after another, pinched the trick with both hands, and at the same time used the formation level to start silently cracking it.

This prohibition is indeed more difficult, but it has not reached the level of eternity, at most it is the level of the peak of the Xuanji level.

As long as the level of the prohibition does not reach the eternal level, with Chen Feng's current formation level and Bi Fang's formation experience, it will not be difficult to break it.

Chen Feng's technique was very familiar, and streams of formation-breaking energy diffused from his hands and fell on the prohibition in front of him.

Suddenly, the forbidden brilliance on the surface of the iron gate began to shake rapidly, and all kinds of brilliance surged, like a wave in the sea, which was extremely uncalm.

Chen Feng's gaze was calm, and the power of the formation level continued to pour out from the tips of his fingers, making the formation on the surface of the iron gate even more turbulent.

However, in the midst of this unrest, Chen Feng could clearly feel that the forbidden power on the surface of the iron gate was shrinking and weakening.

Feeling such changes, Chen Feng's eyes were shocked, he knew that this prohibition would not last long.

As long as this prohibition is broken, he has his own way to open this last iron door.

When Chen Feng broke the formation, in the outermost stone room of the underground secret room, a burst of light flashed, and a handsome young man appeared.

The young man looked around and saw the iron door at the front of the stone chamber that had been blasted open, and his face was ugly.

This young man is none other than Ghost Ling.

Ghost Ling's eyes turned and landed on the stone table in the corner, he stepped to the stone table, and saw that the dark grid on the back of the stone table was opened, and all the jade slips stacked in the dark grid were gone, and his eyes were burning with anger.

"Okay, you Chen Feng, you dare to take away such a confidential thing, I want you to die a miserable death today. ”

Ghost Ling suppressed his anger and slammed the stone table into powder with his right hand, while he stepped out and rushed into the depths of the open iron door with great speed.

......

Click!

Like the muffled sound of glass breaking, it spread around him, and Zhuo Wen opened his eyes suddenly, revealing joy in his eyes.

I saw that there were countless cracks on the surface of the iron door, and this crack was not on the iron door, but a forbidden crack arranged on the surface of the iron door.

He knew that the ban on the surface of the iron door was about to be broken.

Finally, the crack spread to the extreme, and finally shattered into powder, and the lines on the surface of the iron door behind the ban became clearer, as if the fog had dispersed and could be seen more clearly.

Chen Feng couldn't help but be overjoyed, stomped his feet, his right fist gathered momentum, and slammed out, smashing on the surface of the iron door.

Bang!

The thunderous explosion spread, and an invisible wave of qi spread out in all directions, and the entire underground secret room seemed to be unable to withstand this huge force, and shook violently, as if the sky was falling apart, extremely terrifying.

The lines on the surface of the iron door suddenly lit up, and a blue cold air blasted towards Chen Feng.

Chen Feng's eyes narrowed, and the surface of his whole body began to freeze, as if he would turn into an ice sculpture at any moment.

"Break it for me!"

Chen Feng's eyes were calm, and he didn't care about his situation at the moment, but cast the Four Killing Formation Diagram, and the terrifying destructive energy was condensed on his fist.

Boom Boom!

In an instant, Chen Feng blasted out hundreds of punches, and the power of each punch was extremely terrifying, as if destroying the heavens and the earth and shattering the heavens.

The terrifying destructive power spread, and the iron gate was finally overwhelmed and completely shattered.

Chen Feng faced the strong wind and stepped into the iron gate, while his long hair was blown up by the strong wind and fluttered towards the back, like a peerless demon god, looking radiant.

The moment he entered the iron gate, Chen Feng's eyes were vigilant, and his divine sense constantly scanned the slightest bit of it, not daring to relax in any way.

Behind the iron gate is a very empty stone chamber.

It's just that the construction of this stone chamber is extraordinarily luxurious, and on the surface of the rock wall, it is actually forged from various rare ores, and the purpose is probably to consolidate the secret stone chamber here.

"Holy Flame Mu Stone, Soul Eye Rock, Broken Dragon Sand and ......"

Chen Feng kept muttering, looking at the rock walls around him, his eyes became extremely red.

All the rock walls around this stone chamber are made of mystery-grade materials, and all of them are rare varieties of mystery-grade materials.

This is difficult for Chen Feng to get under normal times, but in the surrounding rock walls, it abounds, and Chen Feng's heartbeat can't help but speed up, becoming extremely hot.

Chen Feng hurriedly summoned the Tiger Head Zhan Golden Spear in the Spirit Ring.

Tiger Head Zhan Golden Gun shouted excitedly, and then without waiting for Chen Feng's command, he rushed to the surrounding rock walls like a robber, and began to pull down all these precious materials on the rock walls and take them for himself.

Chen Feng shook his head, no longer paying attention to the madness of the tiger-headed golden gun, his eyes looked around, looking at the surrounding environment.

He found that there was a lot of space in the stone chambers around him, but most of the places were filled with bookcases, and inside these bookcases were jade slips.

In addition to the bookcase, Chen Feng also saw the same locker he saw in the previous corridor.

It's just that these lockers are not that big, only the size of a human head.

Inside these lockers, all of them were black skulls blooming with black flowers, and Chen Feng knew that these were all molded dead man's flowers.

Moreover, Chen Feng could clearly feel that the energy contained in the molded dead man's flower in this huge stone chamber was much stronger than the dead man's flower in those lockers in the corridor.