From the outside, Neptune emits a faint blue fluorescence, but that's because Neptune's atmosphere contains methane, which does not mean that Neptune has blue soil, in fact, Neptune's surface is similar to the desert terrain of Earth's China, but there is no trace of greenery here, and the geology is quite hard.

Fang Yuan and his party traveled with the sword, and the speed was not fast, because the weather here was very strange, and from time to time there would be a gust of wind, and the wind speed would exceed the typhoon of the earth at the lowest, seriously affecting their trip.

"Boss Fang, haven't you arrived yet?" The Tyrannosaurus looked at the increasingly rugged terrain ahead, and his heart became more and more bottomless.

There are ravines everywhere, one after the other, horizontal and vertical, bottomless, and there are even strange whistling sounds coming from these ravines, as if the devil is howling in hell, not to mention how exciting. And the wind here is also strange, sometimes to the east and sometimes to the west, but the wind is so fast that it blows them staggering, like headless flies.

Fang Yuan ignored him, and was concentrating on checking the coordinates stored in the jade in his hand, which should be the location of this area.

Finally, Fang Yuan lowered his flying sword and landed on the edge of a huge ravine.

Sword Idiot, Tiger and Tyrannosaurus also fell.

"Fang Zhenren, is this the place?" The sword idiot frowned and looked at the ravine in front of him, it was very deep, and with his Jin Dan cultivation's eyesight, he could only see the pitch black at the end, and he couldn't see the bottom at all.

Whew!

Under the ravine, suddenly there was an air flow whistling upward, as if a trapped dragon had ascended to the sky, and the momentum was extremely great.

Tiger and Tyrannosaurus looked at each other, and their hearts were full of despair, the weather and environment of this ghost planet are too perverted, right?

Fang Yuan finally checked the jade records before saying, "This is it, get ready to go down!" ”

"What? Boss Fang, do we really want to go down? Is there any danger underneath this? ”

"I heard that there are starry sky monsters in the vacuum of the universe, which are very terrifying, and they usually like to inhabit uninhabited planets, this, ...... below"

Tiger and Tyrannosaurus looked like they didn't want to go down, but Fang Yuan raised his eyebrows, and they immediately coaxed, and immediately patted each other's shoulders to show that they would not hesitate to go up the knife mountain and down the sea of fire, and finally slapped each other's shoulders so loudly that they almost cracked their bones.

In the end, a group of four people went straight down with their swords.

Fang Yuan sacrificed purple fire, illuminating the vicinity with a hazy purple meaning, and you can see that the four walls of this ravine are covered with long traces of flowing water, the shape is natural, straight up and down, which is blown out by the air flow under the ravine over time, and if you look closely, it seems to contain a bit of rhyme.

Tiger and Tyrannosaurus looked at it for a long time and found nothing, but Fang Yuan and the sword idiot felt more and more interesting, they seemed to see the mountains and flowing water on it, saw the hundreds of boats competing for the stream, and saw the sea and rivers, and there seemed to be something in their hearts to break out of the cocoon, but in the end, they were silent.

The two glanced at each other, shook their heads in unison, they still didn't have enough background, if they were like Ten Thousand Buddha Sect Mingxin and Zhuxian Sect Yu Qing, they would definitely be able to accumulate thick and thin and realize one or two exquisite sword tricks.

But this does not mean that these feelings disappear, but they are silent in their hearts, becoming their accumulation and heritage, and when they see more and learn more, they will naturally accumulate and produce qualitative changes.

All the way down, the temperature around me also dropped rapidly, soon breaking through minus 100 degrees Celsius, and the temperature was still dropping rapidly.

"Wait! Boss Fang, I see a hole! Tiger suddenly gasped and stopped, his tall lanky arms reaching out to a dark place in the corner.

There, there was a dark hole that could probably fit a cat, very small.

Several people condensed the golden pill, and without saying a word, they projected their divine consciousness and drilled into this small hole.

As a result, it didn't matter if this drill was drilled, it was found that there was a hole in the cave, and the deeper the cave went, the bigger the cave, and in the end, it turned out to be an underground cave with a radius of 100 meters.

"Let's go inside!" Fang Yuan slashed away with a sword in his hand, but with a 'bang', he didn't even break through the hole.

"This mountain wall, blown by strong air currents day and night, has become as hard as iron." The sword idiot frowned beside him, and at the same time slashed out a sword containing true yuan, leaving a hole in the hole.

Fang Yuan smiled and nodded, and then as soon as Xingyuan poured, the flying sword suddenly erupted with a terrifying sword roar, inspiring a three-zhang sword ray, and it cut into the hole without any effort, digging out a huge cave.

The sword idiot's eyes straightened, Fang Yuan's strength was absolutely terrifying, he was also in the Jindan Realm, he was afraid that he wouldn't even be able to take Fang Yuan's move.

"Let's go." Fang Yuan took the lead and flew in.

Tiger and Tyrannosaurus followed suit, that is, they did not come out of the way, nor did they drag their feet, and tried to make themselves as transparent as possible.

In the cave, the temperature is slightly higher, and you can see that the cave grows naturally and is not disturbed by external forces such as man-made.

After five minutes of travel, they finally came to the end, the huge cave.

Above the cave hung ice-like stalactites of a miserable white color, and there were small low-lying pits on the ground with some wet stains.

Fang Yuan and the others' divine senses swept here, not letting go of every corner, but in the end, they found that there was nothing abnormal here, it was just an ordinary underground cave, it should be the air flow from the outside blowing in, and as a result, this hole was blowing bigger and bigger.

"Let's go." Fang Yuan turned and left.

Then, the group continued to fly down, and in the middle of it, a huge roar came from the deepest part, as if a wild beast had awakened and made an earth-shattering sound.

"Get out of here!" Fang Yuan exclaimed, and directly slashed a hole into the rock wall next to him.

The sword idiot, Tiger and Tyrannosaurus also pasted it up, and helplessly, Fang Yuan swung his sword again, making the hole bigger.

Pieces of rocks as hard as iron fell off the rock wall and fell into the depths, but in the next moment, these scattered rocks were like rockets spraying upward, like a volcanic eruption, and then, a terrifying air flow gushed out from the depths of the ravine, obviously an extremely cold air current, but when it was scraped over, it seemed to be a spark, accompanied by a violent high temperature, and there was a strange rhythm of ice and fire resonance.

The roar continued for a full half a minute before it slowly dissipated.

"Oh God, God, damn it, it's too dangerous here!" Tiger's feet began to tremble, he was so frightened that if it weren't for Fang Yuan's presence, he would have turned around and ran away.

The tyrannosaurus and the sword idiot were also pale, when they first came, they were Jindan monks, and they felt that although the world was big, it was difficult for them, but at this time, not to mention the terrifying storm on the surface of Neptune, the violent air flow in this ravine alone was enough to make them hit hard, and even fall here.

The power of heaven and earth is as powerful as this!

This mission is really not easy.

"Go ahead." Fang Yuan remained silent and continued to go deeper.