Lu Yun frowned, his mind moved, and suddenly a trace of his mind separated and swept away carefully.

After a moment, a hint of surprise flashed in his eyes, the black hole was boundless, and there was no end to it, and the deeper he went inside, the more intense the meaning of emptiness became.

"This is a spatial passage, you can only leave this place with it!"

The middle-aged monk's clear voice sounded in Lu Yun's ears at the right time.

"Space Passage?" Lu Yun's heart moved, and he was surprised.

This essence of blood refining can actually open up a spatial passage, with it, why worry about not being able to get out of this place!

There was a flash of joy in his eyes, and after a moment of contemplation, his eyes closed again, and at the same time, his right hand quickly pinched out a strange seal.

Suddenly, Lu Yun raised his hand and slapped the tongue that the seal technique was sticking out towards the essence of blood refining, and this tongue seemed to be infinitely long, extending towards the big black whirring hole in the distance.

But Lu Yun had already realized that there was no such tongue in his body just now, as if this part of his body was light and shadow!

Although he was puzzled in his heart, he did not hesitate to shoot the seal, and with a roar, the long blood-red tongue did not move, but a strange symbol on the surface flashed and disappeared, and then returned to its original state, without any change.

Seeing this, a hint of joy flashed in Lu Yun's eyes again, just now he used all his whole body to cultivate, and this time he was completely tentative, to see if it was strong and reliable.

"In that case, I don't have to rush out......" Lu Yun's heart moved, and he calculated carefully.

Suddenly, his brows furrowed, and he felt that the gray beads in the dantian in his body, which had been motionless from beginning to end, seemed to move.

This time it was very small, if it weren't for the fact that all his mind sank into it at this moment, he would not have been able to detect it.

"Huh, this crystal spirit beast Neidan is moving again......"

After a while, the gray beads shook so that they were visible to the naked eye, and Lu Yun saw it in his heart, and he was immediately surprised.

At this time, the middle-aged monk next to him showed a strange smile, his eyes were extremely deep, as if he had penetrated his body to see the dantian in Lu Yun's body, and saw the vibrating gray beads inside.

Suddenly, a desolate beast roar came into Lu Yun's mind, as if it had come from ancient times, with a hint of desolation and loneliness.

Lu Yun's heart was shocked, he had heard this beast roar before, it was when he went down the mountain gate for the first time, in the dense forest under the mountain, and then for some reason, this beast roar disappeared for no reason.

Now it reappeared, he opened his eyes and looked around, except for the middle-aged monk with a shocked face, the gloomy color of this place was no different from before.

"Where the hell is that sound coming from?"

Lu Yun was puzzled in his heart, it seemed that this monk didn't know what the situation was, you must know that this place was a place where the disciples of the inner sect of Wen Cangmen were tested, and there was also an elder in the sect guarding it outside, how could it be a place where ordinary demon beasts could enter!

At this moment, the gray beads in Lu Yun's dantian vibrated more and more violently, faintly forming an invisible tacit understanding with the three relics that were spinning at high speed.

And with the abnormal vibration of the gray beads at this moment, the beast roar was like nothing, and it penetrated into Lu Yun's mind out of nowhere.

Lu Yun's heart was shocked, and a solemn look flashed in his eyes, he didn't want any other changes to happen at this critical moment, which caused him to not be able to leave this place!

His mind moved, and he controlled the essence of blood refining to retract back into the relics, but he found that the three spinning relics could not be stopped, and the golden circle of light around the gray bead was still there.

Just as Lu Yun was thinking about how to control it, the mutation regenerated, and the golden circle of light formed by the high-speed rotation of the three relics suddenly retracted after a flash, and disappeared into the gray bead in an instant.

At the same time, the look of shock on the faces of the middle-aged monks, who had been watching closely, disappeared and were replaced by a look of surprise on their faces.

"It'...... It's advanced!"