The further you go in, the wider it becomes.

It wasn't until the two of them walked for nearly a cup of tea that Liu Yiyi took out a pearl of milky white light from the bag, which instantly illuminated the surrounding situation.

The gap seemed to have burst open from the mountain, and it was very strange that the two of them seemed to be walking forward, but in fact, the further they went, the deeper they went underground.

I don't know how long I walked, but suddenly a stone brick wall appeared in front of me, and at the end of the gap was a crack in the stone brick wall, and the inside of the stone wall was still pitch black.

The two walked through the stone wall and found that there was a vast hall inside, Liu Yiyi held the beads in his hand high, the milky white light illuminated the hall, and the inside was extremely empty, only in the center of the hall there was a stone door composed of dark stones, this stone door was dark and simple, and there were traces of different shades on it.

There was nothing in the whole hall except this stone gate, and there were some strange paintings carved on the stone walls, but they seemed to be too old to become blurry, and even some of them were completely invisible with the collapse of the stone walls.

"What is this?" Liu Yiyi walked into the murals, looked at them carefully, and his fingers swiped lightly, and his heart began to search for what these murals said.

Even though there are many incompleteness and fading, Liu Yiyi still looks at something.

"But what did you find?" Liu Bai instinctively avoided the stone gate, came to Liu Yiyi, looked at her in deep thought, and asked softly.

"According to the mural, it should be at some point, a stone gate fell from the sky, this stone gate was built by the lord of the country at that time to build this hall and sealed, and then it seems that something appeared from the stone gate, but unfortunately this mural is too damaged, many things can't see why, but it is certain that this stone gate is very dangerous. Liu Yiyi came back to her senses and looked at Shimen with fear.

"Then let's find a way first, I also think this stone gate is very dangerous. ”

"I always feel like I've seen it there, which book is it. Liu Yiyi was dragged by Liu Bai to the only gate of the main hall, but she was still thinking about the origin of this stone gate in her heart.

"Could it be?" Liu Yiyi broke free of Liu Bai's hand, trotted all the way to the stone gate, and looked carefully.

Seeing Liu Yiyi return to Shimen, Liu Bai was helpless for a while, so he had to follow, standing beside her, and looked at it unconsciously.

This stone gate seemed to have a kind of magic power, attracting Liu Bai's attention, and he felt as if there was something sealed inside the stone gate, and an invisible film sealed that thing inside.

He walked slowly into the stone door and stroked it gently, as if he had been an old friend for many years.

Seeing Liu Bai's sudden movements, Liu Yiyi was shocked, she pulled Liu Bai out of the way, and patted him lightly on the back of the head, and suddenly Liu Bai's originally confused eyes became clear, he shook his head, and looked at Liu Yiyi with a puzzled face, not understanding what was happening at all.

"Senior, I really doubt how you cultivated to the realm of real people, why your state of mind is so bad, although this stone gate has an unusual temptation, but it will not let you be shaken by such a real person, even I didn't pay too much attention to such a temptation, but you, hey!" Seeing Liu Bai who was puzzled, Liu Yiyi scolded angrily and funny at the moment.

"I, what happened just now, what did I do again?" At this moment, Liu Bai was still in a state of confusion, just now he seemed to feel an extremely familiar force, which made him unconsciously want to get closer.

"You've got a big heart. Liu Yiyi looked at Liu Bai angrily, and pulled him towards the gate, at this time she had basically figured out the origin of this stone gate, and naturally she would not get any closer.

"This stone gate should be related to the legendary extraterritorial heavenly demons, so it's better for us to leave early, otherwise we will all become the incarnation of the heavenly demons if we are entangled by the extraterritorial heavenly demons. Liu Yiyi pulled Liu Bai and said to him as she walked.

"Extraterrestrial Heavenly Demons?"

"I don't know what the Extraterritorial Heavenly Demon is, it is rumored that after the Forty-Nine Heavenly Tribulation, there will be an extraterritorial Heavenly Demon blocking the way, and only by surviving the last Heavenly Demon Tribulation can you truly become a free immortal. Liu Yiyi knew that Liu Bai definitely didn't understand, so she had to continue to explain.

"I see, you're really knowledgeable. Liu Bai heard the explanation and said without admiration.

"Senior, it's not that I'm erudite, it's just that you're a little too withdrawn. Liu Yiyi, who gradually figured out Liu Bai's character, quipped.

"It's important that we hurry up and find an exit. Liu Bai looked at Liu Yiyi with an embarrassed face, and hurriedly opened the topic to get over this embarrassing thing for him.

There was only one exit to the main hall, which was blocked by a thick iron door with a large copper lock that locked the two iron doors tightly.

When she came to the door, Liu Yiyi took out a short knife and gently locked everything on the copper lock, only to hear two 'ding' sounds, and the copper lock was directly cut in half by the short knife and fell to the ground.

Seeing that the copper lock had been cut off, Liu Bai took a big mouth on the iron buckle, and gently pushed it with both hands, and the iron door made a clattering sound and was slowly opened.

Walking out of the iron gate, there was a strange sandy area outside, this is a sand underground, and there are still rotten bones and broken blades in the sand. It seems that this place was once a battlefield and there was a big battle, but this place is obviously underground, and there are many things that seem extremely strange.

"Could it be that this has something to do with that stone gate?" Liu Bai walked into the sand, looked at the bones on the ground, picked up a broken blade, and flicked it lightly, and the blade broke into several knots like dead wood.

"It seems that these weapons have gone through too long and have become decayed, and the golden essence qi in them has basically been lost. ”

"That's true, this should be an ancient battlefield, are they fighting for this stone gate? But since someone blocked the stone gate here, they should just not want people to get it, it seems that there should be something hidden here, but unfortunately there are many historical truths that have been lost in the long river of time, which will lead to many things that are puzzling. Liu Yiyi walked forward helplessly, looking at the wreckage around her, which were all relics of history.

"Presumably there shouldn't be much danger here, let's find an exit first. Liu Bai nodded, Liu Yiyi's words reminded him of his own world, there are also all kinds of mysteries, there are many histories that are difficult for people to understand, the ancient Yellow Emperor, and even more ancient ancestors, they are all mysteries, which are difficult to understand, but they really exist in the long river of time.

Liu Bai followed behind Liu Yiyi and walked towards the end of the sand, and the two people who were not watching accelerated a lot, almost turning into two rays of light and shadow and rushing forward.

The scope of this sandy land is extremely large, and even if the two of them walked a cup of tea, they still did not reach the edge of the sandy land.