I, a centenarian, sweep through the gates of immortality.

Yin Guan is the key point of the array that seals the tomb of the Underworld Emperor.

Outside was an empty grave, but underground was a completely different world, complete with all kinds of talismans and magical artifacts.

In the isolated area, the yin energy permeated the air, so dense that it had even solidified into a physical form.

As soon as Lin Feng and the other two entered, the Yin energy began to invade them relentlessly.

If it were an ordinary person, they would probably be instantly assimilated into a walking corpse by the yin energy. Fortunately, Lin Feng and the other two had cultivation, so they could barely hold on for a while.

But faced with the overwhelming yin energy, they didn't know how long they could hold out.

Especially the two from the Guanlan Sword Sect.

"The fierce battle just now has exhausted us both; we probably can't hold on for much longer!"

"Damn it! It's all those bastards at Xuanqing Temple's fault!"

"They knew in advance that the Tomb of the Underworld Emperor was going to open, but they didn't inform us, leaving us completely unprepared!"

Lin Feng already knew that Xuanqing Temple's previous unusual actions were all because of the Tomb of the Underworld Emperor, but he didn't know what treasures were in the Tomb of the Underworld Emperor that would make Xuanqing Temple defy the world. He thought that the two disciples of Guanlan Sword Sect in front of him should know some secrets, so Lin Feng asked them tentatively.

"Fellow Daoists, Xuanqing Temple is a reputable sect, yet it has done such an absurd thing. There must be a great opportunity in the Tomb of the Underworld Emperor, otherwise they would never have done this."

One of them answered.

"The Underworld Emperor was the supreme ruler of the Demonic Sect. He was defeated by the leaders of the Righteous Path thousands of years ago. Although he died, his Dao did not perish. The Yin Core formed from his extraordinary cultivation was buried somewhere unknown."

"Now I finally know, it's in Zhongzhou."

"Xuanming Venerable of Xuanqing Temple has reached the late stage of Nascent Soul, but has yet to find the opportunity to break through to the Divine Transformation stage. He is now nearing the end of his life. The Xuanqing Temple's current scheme is likely aimed at the Yin Pill that the Underworld Emperor has transformed into."

"With this Yin Pill, while I cannot guarantee that Venerable Xuanming will break through to the Nascent Soul stage, extending his lifespan should not be a problem."

"There should be other treasures inside the tomb, but what they are is unknown."

After listening to the man's story, Lin Feng couldn't help but frown.

The treasures in the Tomb of the Underworld Emperor are all absolutely top-quality.

Given his current level of cultivation, he would never dare to foolishly attempt to seize it.

However, it is worth exploring the interior of this Yin Pass.

After entering the Yin Pass, Lin Feng sensed that the Yin energy inside seemed to have a source, but since it was not connected to the earth's veins, it could only be connected by some kind of formation or magic artifact.

While gathering spiritual energy to resist the erosion of Yin energy, Lin Feng walked deeper into the Yin Pass.

Fortunately, this Yin Gate was only used to complement the main tomb and was not large in scale. Before long, Lin Feng arrived at the end.

On a stone wall, many inscriptions were engraved, and in the very center of the inscriptions was an ancient mirror.

Throughout the entire Yin Pass, the source of all malevolent energy seems to be that ancient mirror.

Lin Feng quickly called over the two disciples of the Guanlan Sword Sect and asked them.

"Do you know where this mirror came from?"

Lin Feng has only been practicing for a short time and has limited experience, so there are many things he doesn't understand.

These two disciples were sent on orders, and their intelligence was naturally more abundant than Lin Feng's. So, they introduced themselves to Lin Feng with weak expressions.

"This is the core of the entire formation."

"There are eight such mirrors, divided into eight Yin gates, built in the eight directions of the Underworld Emperor's tomb. Their function is to connect the eight directions and maintain the Yin-Yang cycle of the Underworld Emperor's tomb."

"The treasure those members of the demonic sect want to seize is this mirror."

Lin Feng asked again.

"What would happen if we took this mirror down?"

The disciple said with a dejected look.

"It's no use. The entire formation is already perfectly in place. Simply removing the mirror will still cause a continuous stream of Yin energy to emerge."

"It can't be cut off."

If it cannot be cut off, it means that a continuous stream of yin energy is flowing out.

This yin energy will not only harm Lin Feng, but also the disciples of the demonic sect outside.

If that's the case, why doesn't Lin Feng make use of it?

"If you can't cut it, that's perfect, I'll use you!"

After saying that, Lin Feng strode towards the mirror.

He ripped the mirror off and tossed it directly into his storage bag.

"what?"

The two disciples were completely terrified.

Ignoring her own weakness, she rushed to Lin Feng and tried to dissuade him.

"Senior, you absolutely mustn't!"

"The storage bag has limited space. If you stuff the mirror inside, the yin energy can't dissipate. Isn't that like making a bomb?"

"Put it back right now, or you'll suffer a terrible death!"

These two disciples meant well, worried that Lin Feng would be killed by the yin energy.

But Lin Feng had no such worries at all.

Because besides the mirror, there's also a magical jade pendant in the storage bag.

The yin energy released by the mirror will be immediately absorbed by the jade pendant. Not only will it not affect Lin Feng, it will also indirectly help Lin Feng increase his power.

However, Lin Feng did not explain anything to the two disciples. Instead, he pointed to the entrance of the tomb passage and said...

"Next, we need to bring all those demonic sect disciples here."

Upon hearing Lin Feng's words, the two men were so frightened that they shook their heads repeatedly.

"Bring them in? Wouldn't that be tantamount to courting death?"

"We are currently hiding in the Yin Coffin, doing nothing, holding our breath and concentrating. Perhaps we can hold out until reinforcements arrive. If we take the initiative to attack, we will probably have no chance of survival."

The two were still waiting for reinforcements, but Lin Feng waved his hand and rejected their idea.

"Those members of the demonic sect have already prepared the sacrificial array, just waiting for us to be the sacrifice. If we resist for too long, they will lose patience and will definitely rush in at any cost."

"Those are two experts at the Core Formation stage, we can't stop them! By the time your reinforcements arrive, we'll probably all be dead."

The two disciples remained silent.

Clearly, Lin Feng's analysis is very reasonable.

They are now facing this dead end.

But does taking the initiative guarantee victory?

The two disciples looked at Lin Feng as if he were a madman.

Those were two experts at the Core Formation stage.

Their level of understanding far surpasses theirs.

If they could win by taking the initiative, why would they hide here?

"We're only at the Foundation Establishment stage. Even if the three of us attack together, we don't stand much of a chance against a Core Formation stage expert. What's more, there are two of them, plus many helpers. Taking the initiative to attack is tantamount to suicide!"

Lin Feng did not explain his plan to the two men, but instead looked towards the entrance and said in a deep voice.

"A chance is better than waiting to die."

"Don't they need sacrifices? Next, you need to disguise yourselves as sacrifices and lure them in."

The two men clearly disagreed with Lin Feng's reckless actions and were unwilling to take the risk.

Even in a life-or-death situation, hiding is human nature in order to live a little longer.

Lin Feng's gaze turned cold.

"Excuse me!"

Before he could finish speaking, Lin Feng suddenly made a move and knocked the two men unconscious.