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

Lu Feng knew that the critical moment had arrived and he had to go all out to withstand the enemy's attack.

Therefore, Lu Feng quickly adjusted his strategy and injected more Hongmeng purple energy into the formation. At the same time, he guided the Hongmeng purple energy that had already been input into the formation to gather into a sharp sword energy.

This sword energy was like a rainbow piercing the sun, carrying endless power as it rushed towards the leader of the dark creatures.

Wherever the sword energy passed, the dark creatures were terrified and tried to dodge, but it was too late.

The sword energy instantly penetrated their bodies, causing them to scream miserably.

As the sword energy raged, the offensive of the dark creatures was temporarily curbed.

They looked at everything that was happening before their eyes in horror and did not dare to launch an attack easily.

Lu Feng took the opportunity to catch his breath and continued to strengthen the defensive power of the formation.

The powerful dark creature was also repelled by Lu Feng's sword energy. However, before he was repelled, he blocked Lu Feng's sword energy with a palm, causing the other dark creatures to quickly start attacking the formation again...

Seeing this, Lu Feng knew that he could not let the dark creatures succeed again.

Lu Feng clenched his teeth, concentrated his energy, and poured all his cultivation into the formation without reservation.

For a moment, the formation shone brightly, forming a solid shield that blocked the attacks of the dark creatures.

However, Lu Feng's energy consumption was also great, and he felt his strength was rapidly fading away.

At this time, he must find a way to recover his strength as quickly as possible, otherwise it will be difficult to resist the attacks of the dark creatures for a long time.

Fortunately, when the others saw this, they also spontaneously input their own strength into the formation, stabilizing the Nine Heavens and Ten Earths Demon-Slaying Formation.

Lu Feng also took out the Heaven-Swallowing Gourd and quickly absorbed the Hongmeng Purple Qi in the Heaven-Swallowing Gourd to recover his own consumption...

Fortunately, the Hongmeng purple energy stored in the Heaven-Swallowing Gourd was very rich. Lu Feng's efforts gradually paid off, and his strength began to slowly recover.

But Lu Feng knew that this was only a temporary solution. If he wanted to completely get out of the predicament, he needed to find a better solution.

The key point is that Lu Feng always feels that the strong man of the dark creature who suddenly attacked just now has a familiar feeling, which makes Lu Feng a little confused...

Therefore, although Lu Feng was recovering his strength, he still looked weak and his strength was running out...

Sure enough, the powerful dark creature that had attacked at the beginning stood up again and said proudly, "Hahahaha... Lu Feng, you have finally come to this day! Looking at you, the power in your body is almost exhausted, right? Let's see how long he can hold out with these chickens and dogs! Once this Nine Heavens and Ten Earths formation is broken, you will be slaughtered at will!"

Lu Feng was stunned. The voice sounded very familiar, but for a moment, he couldn't remember where he had heard it.

However, Lu Feng doesn't have time to think so much now. What he should do now is to find a way to solve the current predicament.

Moreover, Lu Feng sensed that there were still several powerful auras among the dark creatures that had not moved. If all these powerful beings moved together, then this Nine Heavens and Ten Earths Demon Slaying Formation would probably not be able to hold on...

"Hmph! This Nine Heavens and Ten Earths Demon-Slaying Formation can't be broken just like you say it!" Lu Feng snorted coldly.

"Hehe... Lu Feng, don't hold on. You are just trying to save face but end up suffering. You can't protect these people by yourself. This fairyland and even the three realms will belong to us dark creatures!" The other party sneered.

Lu Feng frowned slightly. The more he listened to the other person's voice, the more familiar it sounded.

"Who are you? Have we met somewhere before?" Lu Feng asked in a deep voice.

"Hahaha... Lu Feng, you really have a lot of noble people in the past. If it weren't for you, my Star Temple would not have joined these dark creatures. But I should thank you. If it weren't for you, I wouldn't be able to obtain such powerful power, hahaha..." the other party laughed.

Lu Feng was stunned, and immediately looked at the powerful dark creature in front of him in surprise, his eyes full of disbelief...

"Xun Xingchen! You are Xun Xingchen? How did you turn into a dark creature?" Lu Feng asked in shock.

This time Lu Feng was really dumbfounded. He never thought that the person facing him would be Xun Xingchen.

No wonder, ever since the dark creatures completely occupied the Northern Territory, he has had no news of Xun Xingchen.

But Lu Feng didn't care before, because whether he was dead or alive, whether he lived well or not, it had nothing to do with him...

"Hehe... Lu Feng, you finally recognized me. Is it because I have changed my appearance now that you can't recognize me? Am I very ugly now? But it doesn't matter. My strength is strong enough now!" Xun Xingchen said with a smile.

"Xun Xingchen, why don't you want to be a good person but insist on being a dark creature? Is it worth it?" Lu Feng asked.

"Why isn't it worth it? No matter how hard I tried in the past, I couldn't keep up with you. But now, since I became a dark creature, my cultivation has advanced by leaps and bounds. Even you, the Emperor of Time and Space, will be under my feet! With such a powerful force, it's not worth it to just give up my appearance." Xun Xingchen asked back.

"Xun Xingchen, I advise you to turn back from your wrong path. After all, you are also an immortal, and this immortal world is your home. Don't you feel guilty about destroying your people and your home?" Lu Feng said.

"Bah! What a shitty tribe, what a shitty homeland. Only the strong can be respected, and only the powerful force can trample you all underfoot! Lu Feng, you wait to die, hahaha..." Xun Xingchen laughed.

Lu Feng's eyes narrowed slightly, and he thought to himself, "I must find a way to break through the current predicament as soon as possible."

Lu Feng knew that time was running out and he couldn't delay any longer.

At this moment, several powerful auras among the dark creatures began to stir, as if they would launch an attack at any time.

Lu Feng's heart tightened, he knew that the real challenge was coming.

Faced with this tense situation, Lu Feng was not afraid at all.

Lu Feng shouted coldly, "What a bunch of ignorant fellows!"

Lu Feng's voice resounded throughout the space, carrying with it endless majesty.

Then, Lu Feng quickly formed seals with his hands and chanted an ancient spell.

As the spell sounded, the immortal energy around him gathered towards Lu Feng like a tide.

These fairy spirits intertwined and entangled in the air, forming a huge vortex.

And in the center of the vortex, a dazzling light gradually emerged.

In the light, a mysterious fairy sword can be vaguely seen, emitting a sharp sword energy.

This magical sword seemed to have been sealed for thousands of years, and now it finally sees the light of day again.

Its sword body sparkled with golden light, and a dazzling gem was inlaid on the hilt, making it look particularly gorgeous.