Inside the Immortal Nirvana Palace.

"Who are you talking to?!"

Dragon-slaying Marquis, dressed in a vermilion and purple robe, dragged a long spear, his brows tightly knit, and when he saw that Profound Black Ancient Coffin at the end, with Song Chai Xin's spectral figure floating above it, talking to himself, a warning rose in his heart, and he couldn't help but sternly shout.

Beside him.

"Why bother talking to him?"

"There's only one living person here, and that's Song Chai Xin. This kid is strange, he must know some secrets of this place."

"I wonder if the two of you noticed."

"The anomaly in Black Mountain started after he lay down in that 'coffin'."

"I have a feeling that the 'Profound Black Ancient Coffin' with mysterious patterns engraved on it must have an extraordinary origin. If it falls into my hands for research, I might even be able to 'reignite the furnace' and forge a Daoist Soldier!"

Qin Wubai, the Master of Xuanbing Cave, leaned on a heavy sword, looking at the 'Profound Black Ancient Coffin' where Song Chai Xin lay, and his eyes were burning as he watched the grooves flowing with 'True Qi' like red gemstones.

"Having stepped into the realm of a True Master and opened the Celestial Gate, I envisioned my true self and cultivated a segment of 'Lightning-struck Wood.' Even if the Grotto Heaven Era descends and demons and ghosts reappear in the world, I can still cleanse them thoroughly!"

The Gu Family Ancestor was the first to step forward, his entire body surging with True Qi, which exploded and formed into lightning spears, sweeping up with a flick of his wide sleeve, stabbing towards Song Chai Xin above!

Around the lightning spears, purple electricity coiled, entirely illusory and full of killing intent, a style evolved from 'martial arts' and moving towards 'magic techniques'!

Therefore, true martial arts evolve into 'Dao-level Martial Arts,' also called a half-step 'True Skill'!

Boom!

With a sudden burst, the Master of Xuanbing Cave, Qin Wubai, stomped heavily on the Profound Black Jade Dao, launching like a raging river-flood dragon, his eyes filled with rolling malice.

As his whole body's blood and energy exploded, unstoppable, he transformed into an eagle with wings spread, wielding a heavy sword to attack the nine-tiered steps!

The Dragon-slaying Marquis's noble 'General's Robe' fluttered and swirled, a spear descended as if from the heavens, causing the surrounding airwaves to shatter, revealing a 'Majestic Flood Dragon' breaking free from its chains!

Lightning spears like spells!

A heavy sword diving like a falcon!

And a sweeping spear like a Flood Dragon's coiling martial arts masterstroke!

All like bright moonlight that condenses at night, exploding in an instant, all crashing onto the Profound Black Heavy Coffin!!

However,

It only stirred up...

A few faint ripples.

Then all, dissipated into nothing!

"...?!"

When the noise subsided.

The three of them were greatly shocked!

In their view...

Song Chai Xin's floating figure remained calm from beginning to end, without the slightest change in expression.

As if what he faced was not three Fourth Step True Men joining forces, but three playful cats and dogs before him!

"How did you do it?"

"How could my 'Lightning Dao Martial Arts,' learned through opening the Celestial Gate, be so easily resolved by you!"

"What is it that you rely on...exactly?"

The Master of Xuanbing Cave, the Gu Family Ancestor, and Dragon-slaying Marquis were all aghast, in their eyes, Song Chai Xin's figure seemed to have inexplicably grown, becoming mysteriously exceptional!

Thus,

Without hesitation, they withdrew!

But at this time...

The door of the Immortal Nirvana Palace had somehow already quietly closed with a 'rumbling'... 𝙛𝒓𝓮𝒆𝔀𝒆𝙗𝓷𝒐𝙫𝒆𝙡.𝒄𝓸𝓶

It floated above the entire Celestial Abyss, obscuring half the sky, painted with black tides and red in the horizon, looming in and out.

Making the three Fourth Step True Men's minds whirl, thoughts speeding, they felt the strangeness of the place again, then fiercely acted!

Yet,

No matter how the heavy sword and profound spear rained down, the Bronze Ancient Hall door remained unmoved, steady as Mount Tai!

What does 'easy to enter but difficult to leave' mean?

The three famed Grandmasters of Baoping State, each of whom could shake half the land with a stomp of their foot...now finally understood this truth.

At this moment———

Bam, bam bam!

Across the door.

The commotion outside made the three's spirits lift, looking at one another:

"Someone is trying to break in from outside?"

"It's Lan Jingyi, Lord Lan!"

"Lord Lan, push harder, can you hear the call of us three? This hall is bizarre, quickly blast open the door!"

The Master of Xuanbing Cave and the Gu Family Ancestor desperately shouted!

...

Outside.

The projection of the 'Immortal Nirvana Palace' interior on the sky had gradually blurred.

But the scene where even three Fourth Step True Men could not shake 'Song Chai Xin' a bit...

Still fell into the eyes of those at Black Mountain, Black Mountain City, and across the Celestial Abyss, including Song Brahman Mirror, clutching her clothes tightly and staring intently!

Lan Jingyi swept forward, fists and feet rising, deploying the Duke's Mansion's supreme skills from the 'invincible' Duke Liang, like a hurricane, shaking the hall door, making it buzz and tremble incessantly!

Yet, with intricate runes lighting up one by one on it, no matter how high his martial arts attainment, just a mere door apart, he could not break in!

Inside, the urgent shouts of Dragon-slaying Marquis, Master of Xuanbing Cave, and the three Fourth Step True Masters reached his ears.

Making Lan Jingyi frown, he couldn't help but turn back:

"Sword Master Song Yuan, you are a newly promoted Fourth Step, please take action and break this hall with me, to set things right!"

His voice transmitted secretly using a Secret Technique, reaching Black Mountain City.

Prompting Song Yuan, who was silently watching this twist of events, to quietly withdraw the foot he had originally extended.

Then, clutching his chest, his face pale:

"Lord Lan, I have just opened the Celestial Gate, my foundation is shaky, a magical sword was destroyed, and my Divine Thought is gravely damaged, I fear I lack the strength to help!"