The Primordial Path was something Lin Mu had set upon unknowingly.
From what he had learned from Senior Xukong it was one of the oldest paths of cultivation which demanded on to forge their own way and finding their own technique. No single person would have the same technique, but an entirely new legacy could be forged from the followers of the primordial path.
The Primordial path was old and so were its followers. Many had given up on it and some even considered it obsolete now. It brought few benefits for the cultivators in the short term and left a lot to be desired.
But Xukong had told Lin Mu that the Primordial path had its own benefits that no other technique could grant him. It would allow him to be unhindered and not face the same kind of cultivation bottleneck that others had.
The only thing he would be limited by is his own comprehension since for the primordial path, even talent didn't matter.
After all, the primordial path originated from the first cultivators who had no knowledge of the term 'talent'. For one cultivation technique the talent required could be different.
Thus if one didn't have a suitable talent for a cultivation technique they might not be able to practice it. But with the primordial path, one would make their own cultivation techniques, disregarding the talent.
In fact, their status would becoming the requirement for that technique.
With intricacies such as this, there had been no one that had discovered Lin Mu's cultivation technique. They simply thought that he was cultivating some obscure technique, not knowing that it was something entirely unique.
This was what left Lin Mu baffled. After all, if the technique was unique, how could the veiled woman know it was the primordial path?
Only someone as long lived and experienced as Xukong could decipher that.
'I highly doubt she is someone like Senior. After all the Rust Sky world would not allow someone like that within its borders…' Lin Mu thought to himself.
The Veiled woman gazed at the young man in front of her with an intrigued expression. Her face was hidden underneath the veil otherwise Lin Mu would have felt like it was breathtaking.
She had heard Lin Mu's question, but didn't answer him. She had already confirmed that Lin Mu followed the primordial path and possibly wanted to keep it hidden.
But she still wanted to see what the young man would do.
At her level, there was little that could threaten her thus she didn't not mind laying bare the secrets of a stranger.
'It's not often that I get to go out… now that I'm here I may as well see how the humans are faring…' The veiled woman thought, her lips turning into a gentle curve.
It was a shame that it was hidden by the veil or the cabin might not be too calm.
Lin Mu continued to stare at the woman, wanting answers but she did not speak a word. Only a minute later did Lin Mu shake his head.
"I now see… this is not the place." Lin Mu said lightly.
"So you do hold some wisdom in you. You may have let it slip but you still do not wish for your shadows to be seen." The veiled woman replied.
"Hmm… still, my slip of tongue might have interested others." Lin Mu spoke cryptically.
"Oh you don't need to worry about that." The woman said in an amused tone. "You may have had a slip, but I have not." She added.
"Mh?" Lin Mu raised a brow in confusion, wondering what she meant.
"No other person will hear or know of us interacting." The veiled woman stated.
"An isolating array?" Lin Mu guessed at first, but soon realized that he had felt nothing. "No… not that…" he narrowed his eyes.
"So your sense are sharp too… I wonder how much more you can perceive." The veiled woman was feeling slightly entertained.
Lin Mu had several thoughts rising in his mind, some wondering what kind of intentions the veiled woman had for him. But for now, his guts were telling him that she meant him no harm. Plus he didn't sense an lies from her either.
'No its not just that… I cannot sense anything particular from her at all… she has no aura either…' Lin Mu slowly realized.
He tried to sense the qi fluctuations around the veiled woman and discovered that they were very intricately woven. It might have been the most elaborate way to disguise one's cultivation base that Lin Mu had seen so far.
'Such skill is not easy to come by… even I lack that…' Lin Mu thought before taking a look around. 'She has hidden our talks and interaction but there is no array, is there?'
His immortal sense quickly spread to cover the cabin, only to realize that it couldn't go past four meters from his position.
"How?" Lin Mu could not event ell what it was that blocked him.
There was no threat in it, no aura, no qi nor anything corporal, and yet it was able to block his immortal sense.
"Go on, show me if you can perceive it." The veiled woman said lightly.
Lin Mu took that as a challenge and looked around directly. He saw that the other passengers were calmly talking amongst themselves and ignoring him.
'Let's try a little direct way…' Lin Mu raised his hand and waved at the noblewoman that was sitting there.
He saw that the guard looked over, but his gaze was unfocused. By logic they should have locked onto him seeing him wave his hand, but the guard simply looked away.
The same thing happened with a few others that occasionally looked over.
"Haha…" A slight chuckle escaped from the veiled woman's lips seeing Lin Mu act like this.
Lin Mu felt a little embarrassed before deciding to take it another step further.
He closed his eyes for a second and started to chant something.
The veiled woman was feeling entertained after quite literally thousand of years.
Her visit to the Rust Sky world might have been due to her duty, but obtaining some entertainment along the way wasn't against it. She had originally thought that she had come across an interesting human.
Someone of the Primordial path was rare in this era and someone with senses like Lin Mu even more. It made the veiled woman wonder what legacy sect Lin Mu belonged too.
But once he started chanting, her expression changed.
"This… This can't be…" She muttered while her fingers tensed.
Lin Mu chanted for a few seconds before opening his eyes. And this time there was a new look to them. It seemed like the very void had appeared within them and staring into them would entrap one.
Seeing this the veiled woman's eyes widened. "Spatial perception… Reaching into the void itself… this cannot be obtained easily… An affinity to the space and a Dao Embryo perhaps?" she accurately gaged Lin Mu's condition
Lin Mu on the other hand was fully focused and didn't hear her words at all. To him only the scene in front of him existed and he peered into the secrets that were hidden in plain sight.
At first Lin Mu only saw the scene normally, but then he 'looked' deeper and saw the spatial fabric. He looked to be stable and there were no discrepancies in it.
'The spatial fabric is normal so there is certainly no array interfering with it. The space has not been isolated… then…' Lin Mu looked at the movement of immortal qi itself trying to find peculiarities.
He was now thinking that it might be a qi skill that was behind this, but he couldn't be fully sure.
'Wait… it doesn't have to be a qi skill… it can be a Dao skill too!' Lin Mu realized what he had missed.
And when he grasped this he saw 'them'.
Invisible strands of Dao flickered in and out of existence. They were different than Dao Traces that Lin Mu was used to. They were certainly part of the Dao but they were on a different level.
"Higher than Dao Traces? The Dao Insights?!" Lin Mu figured out. "But what kind can they be? What Dao can allow something to look normal when its not. What can disguise both sound and sight?" he pondered on it.
Eventually though Lin Mu grasped it. It was something that interacted with both sight and sound and could interfere with it if needed. While it would take quite some effort to do it, it wasn't entirely impossible.
Lin Mu had seen formations that could achieve this after all, but he knew it was not one.
"I now know… The Dao of Air. A Pure Dao Skill made from Air Dao insights. The air forms a layer that prevents sound from leaving the area while making an illusion at the same time." Lin Mu gave his answer.
The veiled woman heard this and hummed in response.
"Absolutely correct."
