As soon as the fire phoenix landed at a height of about 100 meters, Wu Yu sensed that there was an invisible force tearing at his mysterious qi.

This force was very weak, and he only slightly accelerated the speed of the Xuan Qi, and was able to resist its devouring of his own Xuan Qi.

Wu Yu glanced at Zhang Yang beside him, but saw that he didn't notice it, just shaking his head like a stupid monkey, not knowing what he was looking at.

When he landed at the entrance of the cave, Zhang Yang suddenly exclaimed.

"I'll go, there's really a ghost thing devouring my mysterious!"

Wu Yu asked, "Let's go in together?" ”

Zhang raised his eyebrows and straightened his waist: "That's natural, it's all here, it's a pity not to go in and see." ”

Telling the fire phoenix to play by himself, Wu Hao stepped into the entrance of the black hole, which looked like a bottomless abyss.

As soon as he entered the rock path, there seemed to be a giant beast in the darkness biting at him, which made Wu Hao can't help but speed up the operation of Xuan Qi again to resist the ubiquitous devouring power.

"Why is it so dark, there is no light at all."

Zhang Yang complained, and then burst out with a foul mouth: "His grandmother, that old man really didn't lie to us, is the devouring power in the rock path crazy, stay here for a long time, I really want to fall to the fourth level." ”

Wu Yu ignored him, and a flame condensed into his fingertips, illuminating the dark rock path that seemed to be swallowed by even the light.

Compared to the loose sand outside the entrance, which would be blown up by a gust of wind, the tunnel is made of hard rock, and it is no wonder that Shahuang Castle is called a rock tunnel.

Wu Yu tried to throw a punch at the rock wall, and there was a soft bang, and several half-zhang long cracks cracked in the rock wall.

With the full force of the peak king's blow, it could easily shatter the huge rock dozens of zhang high in the outside world, but only a few short cracks were blasted out of this dark rock passage.

Wu Yu didn't try to bless the Dao Realm Sword Technique, because he had already determined that the rock walls here that were so hard that they were exaggerated must be the masterpieces of the Earth Source.

And, just as he threw his fist, the flame on the tip of his left finger went out.

The ubiquitous and pervasive devouring power is destined to be an extremely unsuitable venue for combat, or even for the release of Xuan Qi.

The power of devouring, as soon as you hear it, you can think of the devouring source among the six dark sources.

In the account of the Battle of Black Dragon Mountain, the Devouring Source disappeared from the battlefield at the same time as the Earth Elemental Envoy.

Combined with the giant beast statue in the picture that Long Tao saw, Wu Yu could determine that it should be the earth element that used the power of the earth source to trap the incarnation of the Devouring Heaven Swallowing Beast.

He could confirm this from the devouring power of this place and the unusually hard rock wall, and the Emperor of Shahuang City who had explored this place must have guessed it.

In this way, it seems that the high-level of the Earth Saint Sect has also explored this place, and they should also be helpless against the cliff at the end of the rock path, otherwise the source of the earth should have been brought back to the Earth Saint Sect.

According to this line of reasoning, I am afraid that the state of the earth elemental envoy will not be very good, otherwise he can completely take advantage of the emperors to open the cliff while the emperors are exploring the dark cave, and unite the power of everyone to kill the Sky Devouring Beast.

Wu Yu re-condensed the flames and walked towards the depths of the rock path.

Although the power of devouring is strange and difficult, he has the reverse Xuan Gong in his body, and self-preservation is not a problem, if he enters the state of cultivation and is running the reverse Xuan Gong at full strength, it is really impossible to say who will devour whom.

In the dark and silent rock passage, the footsteps of the two echoed.

Under the threat of devouring power, it was rare for Zhang Yang to stop chattering, which made Wu Yang quite satisfied, and he was more able to calm down and think.

But...... After thinking about it carefully, he realized that there was actually nothing to think about, after all, it was just a test set by the big pig's trotters.

After gradually figuring out the temperament of the big pig's trotters, Wu Yu was sure that he would not leave unsolvable problems or barriers.

There must be a road before the car reaches the mountain, and the boat is naturally straight to the bridge.

In the eyes of others, perhaps only the emperor can break the cliff while he is alive, and for him, it will take a little effort or brain power at most.

It's like if a person wants to open the lock on the door, it is impossible to break the lock by brute force alone, but if there is a key, it is a matter of inserting and twisting the lock.

So what's the key that unlocks the Dark Cliff?

The flame in Wu Hao's hand was silently extinguished, and the fire element in the depths of the dark cave was extremely thin, and it could no longer even support a beam of flames.

Not only the fire element, but the other five elements were also so thin that they could not condense into a single visible form.

Although the earth element is rich, most of it has solidified into the rock walls around the rock road, which is difficult to invoke, and Wu Hao has not yet mastered the source of the earth, nor can he invoke the power of the earth element.

He was silent for a moment, then pulled out the Void Source Sword, and under the injection of the Fire Source Breath, the Empty Source Sword magically switched to the Fire Source Sword with its own fiery red light.

This is the light released by the fire element contained in the Fire Source Sword, so it can also be used in such a harsh environment.

After walking forward for about ten minutes, the brilliance of the Fire Source Sword reflected the dark cliff at the end of the rock tunnel.

From a distance, it looks like a huge ghost hidden in the shadows, which is quite weird and terrifying.

But as the two approached, in fact, the so-called cliff was no different from the surrounding rock wall, it was nothing more than a dozen shallow marks the size of a fist on the surface, which seemed to be left by the group of emperors when they tried to break through the cliff.

"It's finally here, let me see if this cliff is really as hard as the old man said."

Zhang Yang forcibly lifted a little spirit, as if in the spirit of the mentality of leaving traces of the goose, he quickly took two steps forward, drew his knife and slashed towards the cliff.

In the sound of the exchange of gold and stone, the long knife came out of his hand, grazing Wu Hao's head and flying into the darkness that the light of the fire source sword could not reach.

Looking at the cliff again, sure enough, there was not even a single mark, but Zhang Yang was swallowed up a lot because he was too hard, and he was not careful.

"His grandmother's, it's really hard, Wu Yu kid's earth source should be behind this cliff, do you have any good way to break this ...... Wall? ”

Zhang Yang was asking questions, but he saw that his shadow reflected on the cliff was rapidly elongating, and at the same time, there was a rapid sound of breaking the air in his ears.

Syllable!

A knife landed on his neck, and he passed out instantly.

Yinmang wrapped his whole body like flowing water, and then Yinmang disappeared, and even Zhang Yang disappeared.

A set of operations cleanly 'took away' Zhang Yang's scourge, Wu Hao took a step forward and put his right hand on the cliff.

Airplanes!

The solidified earth elemental rolled into an invisible wave.