Although the Immortal Demon Emperor had not yet swung his sword, the Xuanyuan Holy Emperor immediately felt the threat of death enveloping his heart, just like when ordinary people faced the lion tiger beast, the feeling of imminent death was so strong. But he was a Saint Emperor powerhouse, and his will had already been firm to the point of not being moved by external objects! He quickly infused the mana Dao Yun into the Xuantian Divine Sword.

In an instant, the Immortal Demon Emperor had already swung his sword suddenly, and the condensed incomparable Xuanyin Sword Qi turned into a thousand feet of black Styx, sweeping towards the Xuanyuan Holy Emperor.

At the same time, the Xuanyuan Holy Emperor also swung his sword suddenly, and under the increase of the emperor's soldiers, the majestic mana Dao Yun turned into Xuantian sword qi, and the vast Xuantian sword qi converged into a white heavenly river, sweeping out towards the rapidly coming Styx.

In an instant, the white Tianhe transformed by the sword qi collided with the black Styx transformed by the sword qi, but it collapsed in an instant!

The Black River Styx continued to sweep towards the Xuanyuan Holy Emperor.

At this time, the Xuanyuan Holy Emperor hurriedly condensed his mana and swung his sword at the attacking Black Styx.

With a bang, the Xuanyuan Holy Emperor even vomited blood with a sword and flew upside down, until he flew hundreds of zhang away before he stopped. He was secretly glad in his heart, if it weren't for the last moment, the Xuantian Divine Sword's weapon spirit took the initiative to revive, stimulated the power of the origin, and protected his body with sword light, but he was afraid that he would not die now, and he would also end up seriously injured, it would be as simple as just spitting out some blood now.

The Xuanyuan Holy Emperor who was holding the imperial soldier was actually defeated by the Immortal Demon Emperor with one move!

Next to them, the White Tiger Holy Emperor and the Shura Holy Emperor were all shocked in their hearts, they thought that they had the protection of the imperial soldiers, even if the Undead Demon Emperor wanted to be unfavorable to them, they could protect themselves. But at this time, they knew that they were very wrong, although they had all felt the power of the quasi-emperor level, but compared with the power of the martial emperor level, the gap was still incredible. If the Dead Demon Emperor really wanted to kill them, they were afraid that the Emperor soldiers would not be able to protect them, which made them feel a strong uneasiness in their hearts. Will the Undead Demon Emperor cross the river and tear down the bridge?

The answer is that there is a great possibility! But there is no turning back, they just choose to believe.

The Immortal Demon Emperor was about to swing his sword again, when a spatial fluctuation flashed, and the two Saint Emperor powerhouses of Tianyang and Pure Yang appeared beside the Xuanyuan Saint Emperor.

"Are you alright?"

Xuanyuan Holy Emperor looked at the concerned eyes of the two, smiled, and said, "Don't get in the way, if you come a little later, I will really have to explain here!"

And the two Holy Emperors of Pure Yang and Tianyang were able to come so quickly, but with the help of the super teleportation array and spatial shifting magic power of the Haoyang Imperial Capital. Their spatial avenue comprehension was not as good as Ling Feng's, and it was difficult to cast an ultra-long-distance spatial gate, so they needed to use the super teleportation array of the Haoyang Emperor Dynasty, and because of this, the support was a little late.

The Immortal Demon Emperor looked at the imperial soldiers in the hands of the three of them, his face became gloomy, and he immediately looked at the Nine Demon Emperor, the Shura Demon Emperor, and the White Tiger Demon Emperor, and said coldly: "You three go underground immediately and break the seal!"

The Nine Demon Emperor and the other three immediately flashed and escaped into the underground of the Demon Mountain.

When the Tianyang Holy Emperor saw this scene, his face suddenly changed, and he said, "I can't let them break the seal, I'll stop them!"

After he finished speaking, his figure flashed, falling from a high altitude to the Demon Mountain, and was about to escape into the ground, but a dangerous sense rose in his heart, but the figure of the Immortal Demon Emperor instantly appeared behind him, and the Immortal Demon Sword in his hand struck rapidly.

The Tianyang Holy Emperor hurriedly urged the spatial ability of the Haoyang Mirror in his hand, and in an instant, his figure flashed, returning to the two Saint Emperor powerhouses of Chunyang and Xuanyuan.

At this time, the Pure Yang Holy Emperor said: "The strength of the Demon Emperor is not something that we can match alone, so let's join forces to fight the enemy first, and wait for the arrival of Tianwu, Juetian, and Taiyi Daoists, and then deal with those three people." ”

The other two nodded, and then the three of them held the Haoyang Mirror, the Ziyang Divine Sword, and the Xuantian Divine Sword, respectively, and besieged the Immortal Demon Emperor together.

However, even if the three of them joined forces to deal with the Undead Demon Emperor, they still couldn't gain the slightest advantage, and the situation fell into a stalemate.

A few minutes later, several spatial fluctuations suddenly flashed in the sky, but it was the three Saint Emperor powerhouses of the Heavenly Martial Saint Emperor, the Taiyi Saint Emperor, and the Peerless Heavenly Saint Emperor who arrived.

Six people joined forces, six emperor soldiers, even if the Immortal Demon Emperor was an emperor-level powerhouse, he was also at a disadvantage at this time, but he still couldn't defeat him quickly.

This is the Devouring Dao characteristic of the Immortal Demon Emperor, as long as it is not the attack of the Emperor Soldier's body, it is impossible to injure him, but the Immortal Demon Emperor's body is extremely fast, and he is proficient in the Space Dao, but it is very difficult for the Emperor Soldier to attack him.

At this time, the three figures fled on the ground, but they were the Nine Demon Emperor, the Shura Demon Emperor, and the White Tiger Demon Emperor.

"Your Majesty the Demon Emperor, you have broken the seal!"

When the Immortal Demon Emperor heard this, a smile appeared on the corner of his mouth, and he said, "You guys get out of the way quickly!"

As the three of them dodged away, there was a loud bang on the ground of the Demon Mountain, and a huge cave exploded, and a huge dark red heart like a mountain peak suddenly burst out, and the heart was wrapped with black true demon qi, but it was a little shriveled, it seemed to be a long-term seal, resulting in the loss of its vitality.

At this time, the sound of a bang, a heartbeat sounded, and the heart of the Immortal Demon Emperor emitted a huge suction, quickly absorbing the vitality of the entire mountain peak, just like a dragon whale absorbing water, the vitality of the Demon Mountain was rapidly depleted at a speed visible to the naked eye, and the trees on the mountain were instantly depleted and necrotic.

"Not good!"

The faces of the six great Saint Emperors such as the Tianyang Holy Emperor changed drastically, especially the Pure Yang Holy Emperor, he knew the power of this Demon Emperor's heart, this Demon Emperor's heart was the source of the Immortal Demon Emperor's power, and there was also his Cave Heaven World, if the Immortal Demon Emperor fused with the Demon Emperor's heart, he would be able to recover nearly half of his cultivation immediately.

Therefore, the six of them urged the imperial soldiers at the same time and attacked the heart of the Demon Emperor.

Although the Immortal Demon Emperor urged the Immortal Demon Sword to resist, he still let the Chaos War Halberd and the Purple Sun Divine Sword fly.

At this time, the three emperor soldiers of the Heaven Splitting Divine Sword, the Xuantian Divine Sword, and the Qinglian Sword attacked the Demon Emperor's heart, and the Haoyang Divine Light emitted by the Haoyang Mirror also shot into the Demon Emperor's heart at the same time.

"Wow!"

The Demon Emperor's heart, which had just recovered and recovered its bright red, appeared a scorched black scar, and three openings were opened, bleeding dark red blood, and the most troublesome thing was to invade the Emperor's Qi Machine, which needed to be wiped out by power, otherwise it would continue to erode the vitality of the Demon Emperor's heart.

Immediately, the Immortal Demon Emperor's heart moved, and the Demon Emperor's heart suddenly contracted, and in a flash, it merged into his body.

With the return of the heart, the breath of the Immortal Demon Emperor rose rapidly, doubled, and the Immortal Demon Sword in his hand also soared. His figure flashed, and he swung his sword and slashed at the Tianyang Holy Emperor and the others.

At this time, the Peerless Saint Emperor and the other five had just withdrawn the imperial soldiers, and hurriedly urged the imperial soldiers to resist, but they were slashed by the Immortal Demon Emperor with a sword, repelled respectively, and continued to attack.

Seeing that the situation was in crisis, the Tianyang Holy Emperor hurriedly urged the spatial ability of the Haoyang Mirror, and in an instant, it was far away.

The six of them quickly poured mana into the imperial soldiers, preparing to fight again, but they still couldn't help but feel a sense of helplessness in their hearts, the Immortal Demon Emperor, who had only recovered half of his cultivation, was so terrifying, and it was indeed a demon power! Moreover, not far away, there were two people holding imperial soldiers in their hands, and the situation in front of them was very unfavorable to them.