Falling into the crater, a heat wave suddenly hit the face, and it can be seen that there is indeed earth fire and even magma underground.

However, this little heat is nothing to the monks, and the demons don't care, at least the flame vultures of the Demon Shuai Realm shouldn't be afraid.

But for some reason, the flame vulture under Xu Yan's feet has been trembling from time to time since it flew into the crater, as if it was full of fear.

Yan Vulture was indeed afraid, Xu Yan could see the fear from the heart in Yan Vulture's eyes, as if there was a terrifying beast underground, which could easily engulf the demon clan of the Demon Shuai Realm.

The strangeness of the flame vulture made Xu Yan cautious.

As it gradually fell, the surroundings became darker and darker, and in the deep underground, a hot wind blew.

Hearing the howling wind, Xu Yan was even more surprised.

Because the wind whistle sounded more like the sound of birdsong.

Running the sword eye, the sword light flashed in his right eye, and when Xu Yan looked at the abyss-like darkness below with the sword eye, he was suddenly stunned, and the Yan Vulture was also stopped.

"Dead ......"

Xu Yan's whisper was tinged with a hint of surprise.

He saw a ball of dead air surging and floating underground, and in the blink of an eye, it disappeared again, and as the dead air disappeared, a ball of fire exploded underground, and a heat wave swept in!

"Let's go!"

A little bit of the flame vulture under his feet, Xu Yan ordered it to evacuate, and the flame eagle, which was already wrapped in terror, flew towards the entrance of the cave desperately as if it were about to be amnestied.

The speed of the fire was not too fast, but the heat wave had already enveloped Xu Yan, pushing the flame vulture towards the exit like a hurricane.

"It's so strong, it should be the essence of earth fire, it turns out to be really a volcano...... Huh?"

The scorching breath allowed Xu Yan to identify the source of the flames, only the flames in the center of the earth possessed such heat, and the flames in the belly of the Stygian Mountain were more terrifying than the earth fires in the Cave of the Past Life.

The deeper the center of the earth, the stronger the power of the earth fire, which was well known to all monks, but what surprised Xu Yan was the dead qi that rushed from the ground.

The dead qi was the same mass that had disappeared in the depths before, and for some reason it was pushed out by the burst of flames, and it flew out of the crater almost at the same time as the flame vulture controlled by Xu Yan.

This mass of dead air is very strange, not only exuding dead air, but also alive, resembling a huge bird, and there is a flame burning at the end of the tail, which seems to be contaminated with the fire of the center of the earth.

"Hot, hot, scalded!"

With a snort, the dead air mass rushed out of the volcano from Xu Yan's side, and there was actually a human speech in the dead air mass, and a figure could be vaguely seen wrapped in the air mass.

Whether it is death or earth fire, even if someone says that Xu Yan will not be surprised, after all, there are many demons who can transform into shapes, and there are even more demons who can speak, but the demons who can call themselves Dao Ye, Xu Yan has never seen it.

Hearing the words Daoye, Xu Yan's eyes suddenly flashed with a bright light, and his eyes stared at the dead air like electricity.

After flying out of the crater, the dead air mass finally appeared as it was, and its wings were extended, and sure enough, it was a huge bird.

It's just that this bird is different from other birds, the gray and black feathers all over the body seem to be connected together, like feathers and scales, full of life, but there is vitality, especially the row of white hairs on the face, like a white line, looks like a grimace and looks extremely gloomy.

The most bizarre thing about the huge and strange bird is not the form of the body, but the fact that it is empty in Xu Yan's perception!

"Soul Sparrow, the Soul Sparrow of the Demon Lord Realm......"

It's no wonder that the true trace of this dead qi could not be captured in the ground before, it turned out to be a strange beast that inhabits the intersection of the two worlds of yin and yang.

The Soul Sparrow is alive and dead, it can be invisible or qualitative, it is a very special kind of demon race, the combat power is not high, but the ability to conceal is unmatched, and even the formation prohibition can pass through.

Although the Soul Sparrow in the Demon Lord Realm was amazing, what surprised Xu Yan even more was that he saw that the Soul Sparrow was carrying a Taoist on its back!

That's right, it's indeed a Taoist, a real human race!

This person looks to be around forty years old, with small eyes, thin eyebrows, hooked nose and toad mouth, and his appearance is not strangely ugly, but he is by no means good-looking, and he is a little stronger than the ugly ghost.

The Taoist wears a gray Taoist robe, wears a Taoist crown, and is dressed like a Terran Taoist, except for the somewhat strange crown, he is a Taoist monk of the Terran race.

It is said that the crown is strange, because the crown is higher than the ordinary crown, and there is a fiery feather stuck to the crown, the feather is extraordinary, with the shaking of the crown can scatter sparks, and the sparks fall without extinguishing, burning on the shoulders of the Taoist, from a distance, this person looks like he is about to become holy and ascend.

"Feng Yu?" When Xu Yan saw the feathers on the crown of the Daoist, he couldn't help but be surprised.

Xu Yan didn't recognize the real phoenix feather, but he felt an aura very similar to the Sleepy Dragon Stone coming from the strange feather.

"You little devil, your knowledge is not bad, but this is not a phoenix feather, but a golden crow feather!

The middle-aged Taoist also discovered Xu Yan, seeing that the other party was driving a demon handsome level of the Yan Vulture, and the breath in his body was not strong, thinking that Xu Yan was just a transformation of the Demon Shuai Realm, without saying a word, he directly used his best moves, and immediately nine flying swords rushed out from behind him, and went straight to Xu Yan to attack.

The nine swords are all the best magic weapons, and as soon as the Daoist made a move, Xu Yan could see that the other party actually had a god cultivation.

When he met Xu Yan of the same clan, he didn't have the slightest joy, and he knew that the other party was by no means a good type, seeing the nine swords flying, his eyes sank, he didn't move, and he waited until the moment when the flying sword slashed before raising his fist to shoot.

Boom!

The nine flying swords of the ultimate magic weapon level were shaken open one after another under Xu Yan's punch, and the flame vulture under Xu Yan's feet was also shocked and flew backwards, almost hitting the cliff.

"Not the Demon Marshal?"

The strange Taoist on the Soul Sparrow only looked at Xu Yan carefully at this time, and when he saw the flame demon horn above Xu Yan's head, his expression suddenly changed, and he shouted, "Demon Lord!"

The flame horn was transformed by the Flame Demon Lord, and Xu Yan couldn't urge the demonic qi on it, but with the breath of the Demon Horn, it was enough to prove that his realm was in the realm of the Demon Lord.

"Terran, who are you, dare to appear in the Northern Continent Region, are you not afraid of death? Xu Yan said in the tone of a demon lord, his eyes cold.

"Die?haha! Who dares to let my bird Dao people die in the Beizhou region, it seems that your little demon lord is a little lonely and unheard, when this Dao master is rampant in Beizhou, I am afraid that you are still a little demon soldier. ”

The middle-aged Daoist was extremely angry, and his whole body was surging with the coercion of the middle stage of the Transformation God.

In the North Continent of the Demon Clan's lair, even the peak of the God Transformation does not dare to say that it is rampant, this person can speak wildly, either he is bragging about his skin or he really has some ability, or he has an unknown relationship with the Demon Race.

With a hula, when Xu Yan was groaning, the Bird Daoist turned around and showed a huge 'Bird' character printed on the Dao robe behind him.

"Remember, little demon lord, when you see me in the future, don't say anything about the demon realm, as for the reason, hehe, you can inquire and find out for yourself, hey!"

While the people were boasting, a strong heat wave suddenly rushed out of the crater.

A flash of fire appeared, turning into a flame that roared out of the crater, and the purity of this flame was terrifying, enveloping the Sparrow Dao people like a violent wind.