Could it be an illusion? Dan Xuan shook his head suspiciously, he still felt that there was something strange here, what was the specific weirdness?

After observing for a long time, the vibration disappeared as if it had never appeared, and the surroundings were still very quiet, but if he listened carefully, Dan Xuan could vaguely feel a rhythmic subtle pulsation, which was a very familiar feeling.

There is still a mystery here! This is Dan Xuan's intuition, but what this mystery is, Dan Xuan really can't figure it out.

After waiting for a long time, the vibration did not appear again, and Dan Xuan entered the cultivation state again. I don't know how long it took, but suddenly, the tremor came again!

Dan Xuan suddenly opened his eyes, this time, the vibration did not disappear, with more and more violent vibrations, the entire cave began to shake, and a cracked texture was formed on the cave wall!

Dan Xuan's brows furrowed, and at this time, the vibration became farther and farther away, waking up Yuan Sanlang and Liu Bingrui, who were sleeping soundly! Both of them looked around and shook a little strangely.

"Could it be that there is an earthquake?" Liu Bingrui said strangely.

However, Dan Xuan's face became more and more solemn, because he suddenly felt as if an extremely powerful creature was very close to them, and he was sure that the aura of this creature appeared suddenly, without warning before, as if something that had already died had suddenly awakened!

"It's not appropriate to stay here for a long time, let's leave quickly!" Dan Xuan's face was shocked, he quickly got up and pulled Liu Bingrui and Yuan Sanlang past him and was about to run out of the cave!

The two of them didn't react a little, so they were dragged out by Dan Xuan, however, at this time, the cave that was originally open was actually closed!

Dan Xuan suddenly stopped, Liu Bingrui and Yuan Sanlang looked at the closed hole and were stunned, which was equivalent to sealing their retreat!

"What, why did it suddenly close!What should we do, how can we get out?" Liu Bingrui's face turned pale, obviously frightened!

Yuan Sanlang also looked anxious. Only Dan Xuan, the more at this time, the more calm he became. The cave was still shaking violently, and the walls around it were cracked, and the lines were getting bigger and bigger, and the heavy rock walls began to fall off, revealing the pale red walls inside!

Dan Xuan looked at the pale red wall, and the familiar feeling in his heart became stronger and stronger, what is it, what is it that feels so familiar!

Suddenly, there seemed to be a flash of spiritual light in Dan Xuan's mind, and he suddenly remembered, how could this pink wall look like the skin inside the mouth of a beast?

"Mouth, mouth, by the way! This is mouth!" Dan Xuan repeated the word mouth like a fool, Liu Bingrui and Yuan Sanlang were confused, however, the thoughts in Dan Xuan's mind became clearer and clearer!

"What, what mouth?" Yuan Sanlang looked incomprehensible.

Dan Xuan looked around quickly, but he was more and more sure of his judgment in his heart, and on the ground where they were, a huge bag suddenly bulged, as if something huge was about to break out of the underground wall!

Boom!

With a loud bang, a huge tongue covered with barbs rushed up from the ground, this is the tongue, the tongue of this beast! At this time, Dan Xuan was already completely sure that the empty cave they were stretching out from now was actually inside the mouth of a huge beast spirit! However, Dan Xuan didn't know why he couldn't feel any beast spirit before entering here, but now the breath of this beast spirit was so powerful, what method did it use to avoid its own detection!

Dan Xuan didn't even have time to think about it, because that huge tongue had already smashed towards them like an overwhelming man!

Liu Bingrui let out a scream, so frightened that she almost reflexively hid behind Dan Xuan, and Yuan Sanlang was even more frightened, his face was bloodless, and his whole body trembled.

If there was anyone else who was calm at this time, it would be only Dan Xuan! The white light suddenly rushed up, and a huge halberd with a length of thirteen feet suddenly appeared in Dan Xuan's hand, it was the Demon Heaven Heavy Halberd!

As if it was about to pierce the sky, the Demon Halberd rushed at the smashed tongue!

There was a loud bang, and it was unimaginable that the barbed tongue collided with Dan Xuan's heavy halberd, and it actually made a metallic screeching sound!

An extremely painful beast roar sounded, and Dan Xuan's heart was overjoyed, this was the result he wanted! Because, the originally closed cave mouth was actually reopened, and a powerful and fishy wind blew out from the far cave entrance!

Dan Xuan didn't even think about it, and flashed out of the cave with Yuan Sanlang and Liu Bingrui in his hand, of course, it was actually the mouth of a powerful beast spirit! And the hole that had been opened before was actually the mouth of the beast spirit, and the stone stalactites at the entrance of the cave also revealed its original face, which was a sharp fang!

Like a bolt of lightning, before that mouth could be closed again, Dan Xuan flashed out!

Quickly escaping not far away, Dan Xuan pulled Liu Bingrui and Yuan Sanlang behind him, and yelled at them: "Run!"

However, Liu Bingrui and Yuan Sanlang had already stood in place stupidly, because they had already seen a scene that they shouldn't have seen, only to see that the back ridge mountain, which originally seemed to be a dead thing, actually stood up slowly, its huge body was like a moving mountain, it opened its blood basin mouth and let out a roar that shook the entire ice seal, and the spewing wind carried a fishy smell!

"Oh my God......" It was only at this time that Liu Bingrui and Yuan Sanlang finally understood what Dan Xuan's previous words meant, it turned out that the three of them had actually slept in the mouth of such a terrifying beast spirit......

"Run, run!" Dan Xuan yelled at them again, and Liu Bingrui and Yuan Sanlang finally woke up and quickly fled towards the rear.

And Dan Xuan is not right and adverse!

"You, what are you doing!" Liu Bingrui wanted to stop Dan Xuan, but found that it was too late, and the other party was slowly approaching the terrifying beast spirit!

Walking slowly, Dan Xuan was not in a hurry, as if the huge creature that was venting their anger was not a terrible beast spirit, but a pet!

"Humble human, if you dare to hurt me, I want you to die a good death!" This beast spirit can actually speak human words, which is still something that Yuan Sanlang and Liu Bingrui have never heard of.

Dan Xuan chuckled and said, "I don't want to be your enemy, if you are obsessed today, I will naturally not be polite!"

"What a big breath!" The beast spirit seemed to be extremely angry, and its huge eyes stared at Dan Xuan as if it were staring at a dead person!