After more than ten years on the mountain, you will become invincible when you come down.

Lu Feng looked at the dark area not far below the city and said solemnly, "This is bound to happen sooner or later. Unless we can find someone who has comprehended the law of light, or someone who has attained the status of an emperor, we will be able to eliminate this trouble forever..."

"But, isn't it too difficult to become a great emperor? Is there really anyone who can do it? The fairy world hasn't had an emperor for tens of thousands of years..." said the sword maniac worriedly.

Lu Feng smiled faintly and said nothing more...

Lu Feng himself has this confidence. Instead of spending his limited resources on fighting against dark creatures, it would be better to use them to improve his cultivation and reach the realm of Immortal Emperor as soon as possible, which would be able to solve the threat of dark creatures in one fell swoop...

If Lu Feng continued to consume like this, it would be impossible for him to reach the Immortal Emperor realm. He would not have enough resources to use. Without enough Hongmeng Purple Qi, there was no way for him to reach a higher realm...

A few days later, a large number of dark creatures once again approached the city...

Lu Feng stood on the city wall, overlooking the densely packed dark creatures outside the city.

He took a deep breath, and a gleam of determination flashed in his eyes.

"Brothers, in this battle we will only defend and not attack. No one can leave the city defense formation!" Lu Feng said loudly, "But we will never retreat!"

"Yes!"

Everyone in the elite team shouted in unison, their morale high.

Lu Feng turned around and looked at the people behind him, then said, "This war will definitely be brutal, everyone must defend the formation!"

Lu Feng also realized that the dark creatures had failed several times, and if they came again this time, they would probably be even more aggressive. This time's attack was definitely not comparable to the previous two times...

As soon as Lu Feng finished speaking, the dark creatures couldn't wait to attack.

I saw countless black beams of light shooting towards the city wall like raindrops, colliding with the city defense formation and emitting dazzling light.

Thousands of dark creatures rushed directly towards the city defense formation, using their bodies to hit the formation. Even if they were bounced back by the formation, they would get up again and use their bodies to attack the formation of Guyue City...

At the same time, the soldiers on the city wall also exerted their strength and tried their best to maintain the formation.

They clenched their teeth, veins bulged on their foreheads, and sweat kept dripping down their foreheads.

However, despite their best efforts, they still seemed powerless in the face of such powerful dark creatures.

As time went on, the attacks of the dark creatures became more and more fierce, and the city walls began to shake violently.

The soldiers on the city wall felt a powerful pressure, as if the formation was about to break and the entire city wall was about to collapse.

Some weaker warriors were even shocked to the point of spitting out blood, their faces turning as pale as paper.

The city walls were crumbling and seemed likely to collapse at any moment.

Once the city wall collapses, these dark creatures will pour into the city, bringing a devastating blow to Guyue City.

"Lu Feng, there are too many dark creatures and their attacks are too fierce. I'm afraid we can't hold on. You must think of a solution quickly..." Luo Jiuchen said anxiously.

Lu Feng looked determined and said in a deep voice, "Hold on! Activate the backup immortal crystal and inject it into the formation!"

The warriors acted quickly and threw the spare fairy crystals into the formation.

With the injection of energy again, the light of the formation gradually stabilized, barely resisting the attack of the dark creatures.

However, Lu Feng knew that this was only a stopgap measure and could not be sustained in the long run.

Even if the dark creatures' attacks could no longer be strengthened, the newly injected energy would eventually be exhausted...

When the energy was exhausted, the formation returned to its original state. Lu Feng knew this, and the dark creatures that attacked Guyue City also knew this, so those dark creatures continued to attack and had no intention of stopping...

Lu Feng held the Sword of Time and Space tightly, staring ahead with sharp eyes.

He secretly made up his mind to find a way to break through the predicament.

At this moment, Lu Feng noticed a leader among the dark creatures.

It is huge in size and has a powerful aura, and seems to be the core of this group of dark creatures.

"If we can defeat the leader, maybe we can disrupt their formation." Lu Feng's mind moved.

Lu Feng concentrated his energy and immediately rushed out of the city defense formation, using the power of the Sword of Time and Space to rush towards the leader.

Lu Feng flashed and instantly appeared in front of the leader. He raised the Sword of Time and Space and slashed down fiercely.

The leader sensed the danger and quickly flapped his wings to try to dodge.

However, Lu Feng was extremely fast, and the sword still hit the leader's body, splashing a string of black blood.

The injured leader let out a roar, the sound seemed to burst one's eardrums.

A powerful aura emanated from Lu Feng, making the dark creatures around him feel fear and anger.

Following this roar, the surrounding dark creatures suddenly became even crazier. They rushed towards Lu Feng recklessly, with fierce light flashing in their eyes.

These dark creatures were so numerous that they densely packed the entire space, causing people to feel an indescribable pressure.

However, faced with such a horrifying scene, Lu Feng had no intention of retreating.

He tightly grasped the Sword of Time and Space in his hand, his eyes firm and calm.

Lu Feng took a deep breath, then swung his sword fiercely. A dazzling sword light instantly flashed across the group of dark creatures.

The sword light was as fast as lightning, directly cutting several dark creatures in half.

Blood splattered everywhere, and the dark creatures fell one after another, but more dark creatures continued to surge forward, as if they had no idea what fear was.

Lu Feng was not frightened, but became even more courageous.

Lu Feng swung the Sword of Time and Space again, and several more dark creatures were chopped down to the ground.

Lu Feng moved forward while swinging his sword continuously, and each swing of the sword could take the lives of several dark creatures.

Despite this, the number of dark creatures was simply too large, and the more Lu Feng killed, the crazier they became.