The Flying Corpse, once it stepped into the Seventh Order, could no longer be called a Flying Corpse; within the Tianwu Realm, it was generally known as "Undecayed Bone."
Its flesh was so formidable that it remained unrotted and unchanged even after tens of thousands of years. Such a level of Yin Corpse was, except for Heavenly Thunder, virtually impossible to kill by ordinary means.
This realm was the ultimate peak for ordinary Yin Corpses. One step further, and it would transcend the Yin Corpse category to be called a Corpse King.
This was no different from Immortal Path Cultivators, who, upon stepping into the realm of True Immortal, undergo a qualitative transformation.
Every tribulation a True Immortal overcame meant a qualitative transformation, and their combat power would swell by more than dozens of times.
The Eighth Order was an incredibly terrifying realm. The disparity in fighting prowess between individuals at this level was vast, like the difference between heaven and earth.
Just like the time Chu Zheng witnessed the prowess of the Martial Saint from the Martial Hall, Pei Hengxing, in the battlefield beyond the realms.
As an Eighth Order, he, with a single punch each, dispatched three powerful living creatures, on par with high-grade True Immortals, proving the extent of the disparity in just three moves.
This was a realm capable of creating miracles, able to transcend the shackles of a world and connect with the origin of the Great Universe.
In the Great Universe, all Taoist Orthodoxies underwent an extreme transformation upon reaching the Eighth Order. Many Orthodoxies gradually faded and declined because the methods to ascend beyond the Eighth Order were lost.
After stepping into the Seventh Order, Chu Zheng's confidence increased significantly. He no longer needed to hide and even deliberately approached areas dense with Yin Qi, which were ferocious places.
The heavier the Yin Qi, the more likely it was to be the dwelling place of Evil Spirits, and the higher the probability of encountering a Corpse King.
After entering the Second Mountain Pass, the Yin Qi between heaven and earth obviously increased by more than double, and the strength of the encountered Evil Spirits also rose.
However, relatively speaking, they posed no significant threat to Chu Zheng as he currently was.
After devouring plenty of Soul Power, his Divine Sense was now strong enough to activate a Seventh Order Supreme Treasure. With the Soul Stabilizing Bell at his disposal, ordinary Evil Spirits couldn't harm him.
As for the Yin Corpses, Chu Zheng had yet to encounter any that could rival him. The strongest was merely Sixth Order, covered in purple hair, without a trace of golden light.
The result was naturally self-evident; they all became nourishment for Chu Zheng.
As the Yin Qi between heaven and earth rose, sunlight grew more dim, as if sinking into a nightscape. Upon the pitch-dark canopy, the moonlight shone resplendent, with no stars in sight.
After entering the Second Mountain Pass, Chu Zheng distinctly felt the speed of his cultivation progress quicken by more than a notch. Moreover, he no longer saw any living creatures.
Upon the earth grew patches of dark, low grass, known as "Profound Yin Grass," a type of cold-aspected Spirit Grass, essential for Alchemy, forming prairies within the Second Mountain Pass.
Such vast expanses of Profound Yin Grass were an incalculable fortune, yet no one dared to come here to pick them.
In addition to Profound Yin Grass, this place also grew numerous Yin-attributed precious Spiritual Medicines of immense value, all perfectly preserved to the present day.
Chu Zheng, all along his journey fraught with shock but no danger, casually picked plenty of Spiritual Medicines, reaping a bountiful harvest.
Although he didn't need these Spiritual Medicines at present, he could follow the practice he had employed in the Dongyuan Realm, stockpiling a batch of cultivation resources to send to his main body.
It was an extremely lengthy process, but consumables such as cultivation resources were never too many. In the long run, there would always be a place where they could be used.
Delving more than a hundred thousand li into the Second Mountain Pass, Chu Zheng discovered numerous gigantic bones, flesh thoroughly withered, yet still moving about.
These were the spiritually awakened remains of Ancient Otherkind after death, shaping into special living creatures, somewhat similar to Yin Corpses, retaining some of their original Divine Skills, and not weak in strength.
Herds of skeletons scattered across the Xuanyin Prairie, bowing to chew the Profound Yin Grass.
The Profound Yin Grass was crushed by their teeth, then slipped through the crevices of their bones, returning to the earth, turning into nutrients.
They did not need to eat to replenish energy, and this behavior was a remnant of past habits.
Chu Zheng even tried approaching these skeletons, and to his surprise, found that they all treated him as if he did not exist, showing no reaction, even if he provoked them intentionally, as though devoid of any aggression.
Contained within these skeletons was an intense Yin Qi. Chu Zheng originally wanted to attempt to absorb it and use it for himself, but after weighing the options, he eventually decided to postpone this idea.
Regarding the Second Mountain Pass, he lacked information, and if these Otherkind skeletons were specially nurtured by some powerful presence, rashly meddling could possibly lead to trouble.
As he progressed deeper, the sky turned increasingly dark, the great sun in the sky completely obscured by Yin Qi.
Chu Zheng continued on his way and stopped before a range of mountains.
The Dark Mountain Range resembled a crouching fierce tiger with contained murderous intent, and a tens of thousands of li long crevasse cut across it, severing it in the middle.
With a glance, Chu Zheng discerned some clues; this was sliced open by a casual sword strike from someone. God knows how long ago it occurred, remnants of Sword Qi still lingered, and the breeze felt like a blade against his face.
Chu Zheng circled the mountain range to confirm there was no lingering danger; only then did he step into the crevasse.
Powerful creatures that had once clashed here would inevitably leave some traces behind, such as fragments of warriors.
Having reached the bottom of the valley, Chu Zheng unfolded his Divine Sense and searched; less than half an hour later, he found an Incomplete humanoid skeleton.
The skeleton was intact except for its head, which likely was severed by someone.
Wrapped in a piece of incomplete pale blue silk cloth, after an unknown amount of time, the bones still pulsated with residual energy, reminiscent of the first Incomplete Bone Chu Zheng encountered on the ancient battlefield.