After three years, the Flame Demon Cave is different from before, not only is it much more desolate, but there is also a strong bloody atmosphere in the belly of the mountain.

Falling outside the cave, Xu Yan looked at the depths of the cave with his sword eyes, frowned slightly, and walked in a few steps.

The dim belly of the mountain is full of stumps and broken bones, and the cold mountain rocks are almost dyed red!

Walking up to a dying flame insect, Xu Yan looked through the body of the demon soldier and found that the wounds were all caused by gnawing.

In particular, the wound on the back of the neck is the most serious, several holes penetrate the head of the inflammatory insect, and at first glance it is the fangs penetrating, indicating that the inflammatory insect was bitten to death.

"The invasion of foreign enemies should be the Red Flame Demon lineage, and it actually came in, what about the female beast?"

Xu Yan walked into the mountain bandits, the grotto where he used to live was still there, but there was no trace of the female beast that inhabited the depths of the mountain.

"Could it be that he was captured, the Red Flame Demon is really looking for death!"

When he came to the place where the mother beast lived, Xu Yan could see that the ground was full of bloodstains, and there were ruins and broken walls everywhere, and the huge mother beast must have been robbed by a strong enemy, and the one who robbed was very likely to be the Red Flame Demon lineage.

In Xu Yan's eyes, the demons in the Yan Demon Cave were all his free thugs.

The most rare thing is that there is also a green flame demon mother beast that can give birth to non-stop, so that he can mobilize more and more demons.

After advancing to the gods, Xu Yan came back with the intention of receiving these free subordinates, but he didn't think that even the female beast would be plundered, how could he not be angry.

"Thousand Scales said that the Red Flame Demon plundered the Green Flame Demon and would use it to breed the Red Flame Demon vein, so it just so happened that the Red Flame Demon also belonged to me. ”

Xu Yan, who was whispering secretly in the cave, had a cold light in his eyes.

He is a wicked person, and he will not spare his hands when dealing with the Terran monks, let alone the demons.

Xu Yan walked out of the mountainside with a calm face, and at this time, some flame insects and moths gathered from the mountain col and forest, as well as more than a dozen scarred flame vultures.

"City, in what direction? ”

Ignoring the low-level flame insect and flame moth, Xu Yan stared at the flame vulture and asked.

One of the Yan Vultures, who was slightly injured, shook its wings and looked to the southeast, as if it could understand what Xu Yan was saying, and his eyes were much more agile than those of his other kind.

"Mother beast, whether it was taken away by the Red Flame Demon. Xu Yan stared at the flame vulture that was fluttering its wings, and he recognized this flame vulture as the one he approached before leaving the flame demon cave, as if he was obeying orders.

The other party actually nodded this time, and opened his mouth to let out a strange scream while swinging his head, as if he was answering Xu Yan's inquiry, but the scream was extremely strange, like two different voices, one high and one low, one sharp and one sinking.

At the same time that this flame vulture opened its big mouth, Xu Yan's eyebrows moved.

He saw the vulture's upper jaw, and there was a human head on the back of the fangs!

Far from food, the human head grows in the mouth of this flame vulture, like a kind of incomplete evolution that makes this particular flame vultures look nondescript.

There was absolutely no head in the big mouths of the other flame vultures, and Xu Yan was stunned for a moment with such a vision, and then he understood.

It seems that this flame vulture must have eaten something that could transform into shape, but it didn't eat much, maybe only a small half or even a corner, so it transformed into a head, but the rest of the body did not transform into shape.

"Go to town. ”

As he spoke, Xu Yan jumped on the back of the flame vulture and ordered it to take off and fly to the southeast.

Although the horned stone armor is different from a year ago, the breath of the flame horn, this group of demons in the Flame Demon Cave can distinguish it, and when the devil returns, who dares to disobey the order.

Especially today's Demon Son, who is much stronger than a year ago, has reached the level of a Demon Lord!

With the cultivation of the realm of the Demon Lord, it was easy to order the Yan Vulture of the Demon Shuai Realm, and after a short time, the Yan Vulture flapped its wings and flew away to carry the Demon Son and disappeared into the barren mountain range.

Since you want to integrate into the demon clan, you have to follow the local customs.

With the magic horn and the Yan Vulture mount, it looks like a real devil, but the realm of the Yan Eagle is too low, and along the way, Xu Yan is looking for a demon lord to ride in the future.

The flame vulture, which is comparable to the great demon, does not fly slowly.

This partially transformed flame vulture saw that its aura had reached the peak level of the demon handsome, similar to the peak of the primordial infant, and it flew to the real lair of the Flame Demon in more than two days.

Yan Vulture couldn't speak, Xu Yan couldn't get accurate news, he only saw a gloomy mountain range, bare and not even a single grass or tree.

The mountains are full of cracks, and the cracks are deep and dim with no end in sight, and from a high place, it seems as if the land in this mountain range has been smashed into pieces by a heavy blow, and the cracks are all over the ground.

Seeing this scene, Xu Yan, who was flying over the mountains, was slightly stunned.

It was not the first time that he felt that an inexplicable force had fallen from the sky on the earth.

The sea abyss in the mountain behind Linyuan Island is one, the Sword King Hall is one, and this gloomy mountain range is three locations, and Xu Yan has a feeling of great power falling in the sky at these three locations.

"The formation of the sea abyss was smashed out by the mixed yuan bottle, where did the Sword King Hall and the terrain here come from, how many strange treasures fell from the sky, could it be that there are also heavy treasures in the ground here?"

From speculation to deduction, Xu Yan suddenly discovered that there might be treasures hidden in this lair of the Flame Demon.

In the mountains in the distance, an ancient city comes into view.

It is said to be a city, but in fact it is almost the same as a town, not even a city wall, surrounded by tall wooden piles, forming a living place in the mountains and forests.

Don't look at the simple construction of the town, there are a lot of houses inside, and there are many pedestrians, mostly in human form, and it is actually a station of the shapeshifting demon clan.

"Stygian Mountain City, it seems that this is the Stygian Mountain, the name is not bad, the cracks everywhere are like the underworld, I don't know if there are any lonely souls and wild ghosts crawling out of the ground. ”

The sword light in his right eye gradually dissipated, and before he arrived in the town, Xu Yan already knew the name of this place.

It's not that he has the ability to predict, but the gate of the town has three big characters written on the mountain city.

The handwriting is not outstanding, but it is also neat, and it can be seen that the demons who wrote the three big characters of the Stygian Mountain City must be literate.

In order to find the disappeared female beast, and to find out the reason why this group of demons can transform in the realm of demon handsome, and to better understand the truth of the demon clan, Xu Yan approached the Stygian Mountain City alone.

The eerie name of the Stygian Mountain must have been created by blood and fire when it was decided.

As he got closer and closer, Xu Yan saw pieces of white bones spread on the ground, some bones submerged into the ground, fused with the mountain rocks, and some bones were shattered on the ground, looking like a white rock.

Broken bones, almost all over the mountains.

The closer you get to the city of Styx, the more white bones there are, and when you reach the edge of the city, it is already full of white, which looks shocking!

It was the bones left over from countless battles, and it was foreseeable that this not huge city was simply a burial ground, where countless demons were buried.

Even a monk like Xu Yan, who has experienced a hundred battles, couldn't help but be secretly frightened when he saw the mountains full of white bones.

"The Red Flame Demon and the Green Flame Demon are actually fighting to such a point, devouring and killing are indeed the habits of the Northern Continent Region. ”

With the aura of the demon clan, Xu Yan approached the Stygian Mountain City, and before he arrived at the town, his eyebrows suddenly moved.

"Night Eye, why does it ...... abnormal movement?"

The reason that frightened Xu Yan this time was not the demons in the Stygian Mountain City, but the night eyes in the Thousand Machines Mansion.

As he approached the Stygian Mountain, the Earth Spirit Treasure Night Eye that he had obtained in the Nine Infant Divine Fire Tripod actually turned on its own!