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The concept of "opening the eye," as Ye Feng once saw in ancient books, describes how a martial artist, during the cultivation process, could either achieve it through a serendipitous enlightenment or by sheer coincidence.

"According to ancient records, there are many kinds of ''eye-opening,'' including the opening of the naked eye, spirit eye, wisdom eye, and Dharma eye, among others. However, I still don''t know which type I have opened this time," Ye Feng contemplated.

Based on the current situation of his eye-opening, it seemed that he had opened what was considered the lowest level, the naked eye.

As the saying goes, the naked eye is mortal. In this complex world, it is estimated that what the human naked eye can see is but a small part of the entire world.

For instance, various rays that require instruments to detect cannot be seen by the naked eye, yet after one opens the eye, many sights invisible to the naked eye become observable.

For example, now Ye Feng, upon channeling his inner strength into the eye acupoint, could open his eye. Then, the world would appear as a white expanse, allowing him to see through the surface of plants to their roots and through human bodies to their bones.

"To see through the surface of things and perceive their essence is indeed the function of opening the naked eye!" Ye Feng silently marveled.

Before he was injured, he had encountered several true Martial Kings. These Martial Kings had opened different numbers of acupoints in their bodies but he had never heard of them opening the eye acupoint to gain sight beyond the mortal.

"It seems that this was indeed a lucky coincidence for me!"

Ye Feng inwardly sighed, feeling fortunate that since his injury six months ago, not only had his cultivation progressed rapidly, but he had also, by chance, opened his naked eye.

It appeared that a great misfortune could indeed bring an unexpected blessing.

However, at that moment, Ye Feng furrowed his brows and his expression grew stern.

Through the wall, he suddenly saw a black figure, ghostly as a specter, drifting in from outside.

"What is this?" Ye Feng was shocked.

The entity was so light, its movement technique was beyond comprehension, even surpassing the lightness that Ye Feng could achieve after attaining the status of a generation''s Martial King.

Without changing his expression, Ye Feng slowly lay down, breathing evenly, simulating the state of deep sleep, yet he kept his naked eye open.

This ghostly entity slipped through the gap in the window, surprising Ye Feng with its ability to contract and expand at will, defying all logic.

The shadow moved silently into the room with a twisting, uncertain form, appearing to be quite elusive.

"Die!" Ye Feng slapped with his right palm, and a torrent of Qi Force burst forth, instantly scattering the wisp of black smoke.

But the overwhelming palm strike also shattered the window, and the scattered black smoke hurriedly took the chance to escape through it.

Ye Feng leapt like a Golden-winged Roc, landing outside the window in a flash, but by that time, the wisp of black smoke had already vanished without a trace.

"Unexpectedly, he escaped right under my watch. Such techniques, truly ghostly and evasive like a specter!"

Ye Feng sighed inwardly and the next moment, he returned to his bedroom. He crouched slightly and picked up a piece of yellow paper from the ground.

The yellow paper was densely inscribed with blood-red talismans, resembling bizarre, unsettling sigils.

After one glance, Ye Feng''s gaze immediately sharpened: "Is this... the rumored Art of Talisman Spell from the Ghost Dao Sect?"

As the Northern Border King, Ye Feng had had access to numerous secret scrolls within the country, and there were some records about the Ghost Dao Sect, though not many.

It was rumored that the main base of the Ghost Dao Sect lay in the Western Territory, skilled in using talisman curse techniques, exceedingly strange, and even more mysterious than the Gu&Poison Sect.

For instance, the shadow that had attempted to assassinate Ye Feng had utilized the yellow talisman in his hand, infusing it with Curse Incantation Secret Techniques and the essence blood and shadowy soul of the caster, eventually conjuring a semi-tangible shadow figure.

No wonder the shadow earlier could sneak in so lightly and even lurk through the slit of the window; it seems only such a semi-tangible talismanic shadow could achieve that.

"The Ghost Dao Sect''s lineage has nearly vanished to this day; how did it suddenly appear in Jiangnan, even orchestrating an assassination against me?"

Ye Feng''s eyebrows shot up, and he suddenly thought of the Mountain Eagle organization, but he shook his head almost immediately, dismissing the thought; although Mountain Eagle was an assassin organization, it was unlikely they had connections to the Ghost Dao Sect at this level.

"Could it be the Jiang Family of Southern River Region Jiangnan, or the Gu&Poison Sect, or perhaps those Aristocratic Clan Gates in the imperial capital?" Ye Feng pondered.

However, since he could not figure it out, he did not bother to dwell on it further. As the saying goes, "The boat will straighten itself when it reaches the bridge," he would just leave it for a future investigation. For now, the priority was to root out the Gu&Poison Sect.

Suddenly, Seventeen arrived outside the door and called out, "My lord, did you hear strange noises just now? Was there an assassin?"

Ye Feng responded, "It''s nothing, just some shortsighted riffraff. You go back and rest."

"Yes!" Seventeen replied and withdrew.

After a half night''s cultivation, Ye Feng was also somewhat tired, especially his eyes, which after being used for a long time, felt a slight soreness, so he soon fell asleep.