Da Xuan Martial Saint

Seeing the Wu Gu Marquis go after Chen Mu and Murong Yan, a hint of murderous intent also flashed in the eyes of the Qiugu chieftain. He, too, was not pleased to see Chen Mu and Murong Yan leave unhindered. The Wu Gu Marquis was among the top in the realm of Grandmasters, and throughout the entire Cold North, there were but a few who could surpass him. Although the two figures from the Wind Cloud List possessed some strength, they were nothing in front of a top Grandmaster.
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However, the Mystic Tortoise that had suddenly attacked, despite its exterior strength, was internally spent and weak. And even though they had nearly thirty thousand elite troops in their Military Formation, they still couldn't afford to be careless in battle.

"Defend!"

With a wave of his Command Flag, Qiugu chieftain looked at the Heavenly Demon Black Tortoise charging toward them and bellowed deeply.

Hum!!!

In an instant, with his Command Flag as the basis, within the tens of thousands of Army Soldiers in the formation, dozens of Viscera Realm Commanders and over a hundred Five Viscera Realm experts, strands of Inner Breath were all interconnected, and the Qi-Blood of tens of thousands of soldiers was also encompassed among them.

The qualitative transformation resulted from the accumulation of quantities, creating overwhelming Momentum which solidified the Power of Heaven and Earth within the radius of the formation. Visible Vigorous Qi Force converged in front of the formation, becoming a grand and vast invisible wall!

The gigantic construct of the invisible Qi wall took on the color of earthy yellow, like a soaring city gate, majestic and insurmountable.

Each step of the Heavenly Demon Black Tortoise caused the ground to tremble, and the rolling tide of the Cloud Sea it brought along was like the surges of a great river, finally crashing against the wall of the formation with a resounding roar that shook the heavens and the earth.

Boom!!!

The mighty, towering invisible wall, struck by the Black Tortoise, rippled across its surface like waves on the sea. The invisible impact seemed to permeate through the surface of the formation, seeping into the vast elite troops behind it.

All the soldiers within the formation felt a massive force coming toward them, but this force was evenly distributed and borne collectively. Although it put immense pressure on the elite Martial Men, the connected Qi Force ultimately did not shatter.

Crash.

The vast tide of the Cloud Sea also slammed against the defending wall of the formation, like the mighty waves of a tempest crashing against a cliff, resounding with the roar of lightning, as ripples constantly spread across the wall.

The two forces were at a standstill, with no clear advantage seen for the time being.

...

Underground.

Chen Mu, pulling Murong Yan, traveled smoothly through the Earth's Veins, unobstructed. The ground they passed, which was solid mud and rock layers, felt as if they moved through water, without the physical resistance.

Although Murong Yan had mastered the Qian Heaven Domain, this miraculous sensation was new to her. Even with the Domain, she couldn't achieve such manipulation of all things. Only with the complete training of the Qiankun Artistic Conception could she attain the integration of heaven and earth, formless and intangible.

"So, this is the Qiankun Artistic Conception, the 'Art of Using All Things'."

Pulled by Chen Mu, Murong Yan quickly descended nearly a hundred yards underground. She felt the environment around them and couldn't help but exclaim silently in her heart. She also tried to cultivate the Kun Earth, but with little progress.

Indeed, she was more attuned to the Qian Heaven than to the Kun Earth, and it would be an arduous journey to accomplish the complete Qiankun.

She wondered how Chen Mu had trained his Qiankun. How could one's natural talent be so high? Five Viscera, Six Viscera, Qiankun, Grandmaster... Each step seemed almost without any bottleneck for Chen Mu, as if everything just came naturally.

"Once the complete Qiankun Artistic Conception is cultivated, and upon reaching a certain depth, it allows for the free transformation among the Eight Phases, and since all things are condensed by The Power of Heaven and Earth, they can act inversely as well as normally, used freely."

As Chen Mu led Murong Yan through the underground, he briefly explained to her.

Mastering the Qian Heaven Domain grants the ability to soar through the skies; mastering the Kun Earth Domain allows tunneling underground. To cultivate the complete Qiankun is to become omnipotent, capable of traversing both heaven and earth. Murong Yan has already mastered the Qian Heaven Domain, and soaring through the skies was second nature to her. Previously, even when she was alone, she managed to evade the pursuit of the Black Tortoise through agile movements. However, the experience of tunneling was a first for her.

Since she was also pondering over the Kun Earth Artistic Conception, this experience of underground travel was a valuable accumulation for her.

However.

Before Murong Yan had the chance to deeply appreciate the subtlety of tunneling, Chen Mu's gaze shifted slightly, glanced behind, and said, "Someone has followed us down. It seems they're not keen on letting us withdraw easily."

Upon hearing Chen Mu's words, Murong Yan was momentarily startled, and she too looked back. However, her perception underground was nowhere close to when she was flying through the skies. In fact, being underground was a huge limitation for her, practically cutting off her sensation and manipulation of the Strength of Qian Heaven, greatly weakening her in all respects.

If not for her absolute trust in Chen Mu, she would not have willingly ventured deep underground into an environment that suppressed her abilities, where she could barely make use of her Qian Heaven Domain and thus her power was reduced to that of an average Six Viscera Realm, virtually powerless against Chen Mu's authority... Of course, even above ground, faced with the current Chen Mu, she would be equally powerless, given the extent of their power disparity.

"Is it a Grandmaster of the Foreign Race? How many?"

Unable to sense the chasers behind her, Murong Yan inevitably asked Chen Mu.

Though asking, her eyes gleamed with an inexplicable luster, without too much concern. She knew that no matter who it was, unless it was the 'Wuzu' of the Foreign Race from beyond the border in the Blood Exchange Realm, anyone who came down would likely suffer a great loss against the present Chen Mu, unable to gain any advantage.