The cold wind blows, and the thick fog rolls and flutters, but it is always on the side of the invisible line, which looks very strange no matter how you look at it. Especially on the top of this dirt mountain, the pair of eyes that suddenly appeared in the mist were dark and mysterious, which made people's scalps tingle.

Ah Tu took a step back, but he didn't mean to turn around and run with the hair on his body, but stared at those eyes all the time, looking extremely bold and fearless.

After a while, Ah Tu let out a few low roars, but it was not the kind of threatening sound, but it seemed to carry a bit of inquiry and verification.

The fog floated slowly, and after a few moments, suddenly a strange sound came from the fog.

"Moo......"

Ah Tu's eyes suddenly lit up, and there was actually a little excitement and excitement in his expression, and he took a few steps forward.

It didn't take long for the fog to shake, and then a huge body slowly emerged from the fog.

It was a huge green bull.

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In Kunlun Mountain, the territory of the Kunlun faction, such a huge green cow can enter and leave the forbidden land of Kunlun unscrupulously and unscathed, needless to say, there is only the green cow with a special status of Tianlan Zhenjun.

Ah Tu grinned, he hadn't seen him for many years, but he didn't seem to have too much strangeness between him and the green cow, so he ran up and circled around the green cow a few times, screaming "Wangwang", and stretched out his front paws to pat the belly of the green cow a few times in excitement.

Of course, the green cow should also recognize this big black dog, although when Atu was still in Kunlun Mountain, it was still the kind of inconspicuous weak earth dog, but the green cow is the green cow, and he was able to help Atu support his waist once, and his eyes were naturally not bad.

At this moment, in the face of the very happy Ah Tu who was bouncing around him, Qing Niu looked more like a little relieved but still calm big guy, and did not show much overly excited looks, but Qing Niu did not have any disgust at Ah Tu's excited actions, at most he was probably a little helpless and looked at it with a little tolerance.

"Moo......"

The green ox screamed, and walked out of the fog completely, and then, as before, found a flat place on the dirt mountain, and lay down on its own, looking as if it had become a part of the dirt mountain.

Ah Tu followed, still looking excited, chasing after the green cow and kept leaning and shouting, until the green cow's tail suddenly stood up and touched its head a few times.

Ah Tu shrank his head, and then he fell silent.

In fact, a few years have passed, Atu's appearance has also changed greatly, just in terms of body shape, the black dog that has been mutated and improved is not much different from the green cow, but the momentum of this green cow is too strong, everywhere there is a kind of king elephant, any creature in front of it seems to be a head shorter, which makes it seem that Atu is still a little short.

The green cow lay on the top of the dirt mountain and glanced into the distance, only to see that in the depths of the night, the Kunlun Mountains were undulating, and everything was as quiet and normal as usual. It's just that there is such a black dog around now, and it is of course not normal to think about its origin.

"Moo......" This time, the bark of the green cow was made by looking at the black dog Atu, and there was a hint of inquiry and doubt in his voice.

Ah Tu hesitated for a moment, and then probably thought of the identity and background of the giant beast in front of him, so he decisively betrayed Lu Chen, stretched out one of his front feet and pointed in a certain direction down the mountain.

Qingniu rolled his eyes, but he didn't think about interfering, and still lay on the ground and didn't move. This made Ah Tu, who originally wanted to follow this beast boss into the thick fog to take a look, a little disappointed, and couldn't help but bark a few times.

At that moment, it seemed to inadvertently look up at the sky, only to see that in the depths of the dense fog, in the rolling and swaying fog, there seemed to be a huge shadow that swayed for a while, but soon disappeared into the depths of the fog.

At this time, suddenly Qingniu's gaze froze, but he turned his head and looked down at the bottom of the earth mountain.

At the same time, Ah Tu seemed to sense something, and at the same time walked to Qingniu's side and looked down.

In the silent night, a figure suddenly came from far and near, a dress floating in the night wind, and his face was beautiful, like a fairy descending on a moonlit night, it was the white lotus.

In the night, neither the green ox nor the black dog made any more noise, they just quietly watched the girl come closer.

Bai Lian seemed to be very cautious, her brows furrowed slightly, and she was also wary of her surroundings, looking around from time to time. But perhaps because of the angle of her gaze, she didn't seem to notice the two animals on the dirt mountain.

In this way, she slowly walked around the foot of the dirt mountain, and then stood in front of the thick fog, staring at this wall of thick fog, her face showed a somewhat complicated look, and she began to be in a daze.

To go in, or not to go in?

On the earth mountain, Qingniu turned his head and glanced at the black dog Atu, Atu immediately shook his head, saying that he didn't know this person at all, well, it has nothing to do with it, and then Atu's eyes rolled, and he leaned up and rubbed the huge horns of Qingniu with his head, as if he was going to instigate the mysterious bull king in Kunlun Mountain to teach a lesson to the girl who dared to trespass on the forbidden land without knowing the sky.

The green bull glanced at it, hesitated for a moment, and then slowly stood up.

Ah Tu suddenly became happy, his tail wagged, and he grinned silently.

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Of course, Lu Chen came to this Kunlun forbidden land for the first time, even if he had lived in the Kunlun sect for many years, and secretly had a special relationship with Tianlan Zhenjun, but in order to hide people's eyes, he had always stayed away from this kind of place that was very easy to attract attention, which was also the instinct of people who were shadows.

However, now that he has the special mission assigned by Tianlan Zhenjun, the situation is naturally different. Although he had never entered this mysterious place shrouded in thick fog, since Tianlan Zhenjun had sent him here, of course he would have some explanations, so Lu Chen actually knew the situation of this forbidden place between the heavens and clouds.

For example, he now knew that the destination of his trip was not just in this dense fog, but only a secret entrance hidden in the dense fog, and the biggest secret of the Kunlun Sect, a thousand-year-old famous sect, was actually hidden in the mysterious underground palace deep underground.

To be honest, when he first heard Tianlan Zhenjun talk about this secret, Lu Chen's heart reacted almost instantaneously, and he thought of the mysterious underground palace under the immortal city. Although the two were very different, for some reason, he suddenly associated the two places in this way.

Those secrets hidden under the dust of time, is it finally time to reveal their true colors one by one?

Lu Chen walked slowly, the fog around him avoiding him, as if there was something strange or strange power on his body that could dispel the fog, including those inexplicable strange things in the thick fog.

Then, he walked all the way to the center of the fog and saw the place.