However, Yuan Yan suddenly recalled one origin and legend concerning the Three Immortal Isles Overseas.
Legend had it that the Three Immortal Isles Overseas were not originally islands native to the East Sea of the Primordial World. They were formed from fragments of Chaos that had fallen into the Primordial World. They drifted through the Chaos Void year-round and would only intersect with the East Sea across time and space after unimaginably long ages, briefly manifesting above its waters. It seemed this legend was not without foundation.
He then thought of the Yinyang Grotto-Heaven. This grotto-heaven was likewise not fixed atop Mount Buzhou, but hidden deep within endless void. Its connection point to the Primordial World merely happened to be located on Mount Buzhou.
Yuan Yan gradually came to an understanding, and an idea formed in his mind!
"Whether it works or not, I'll know once I try!" Yuan Yan's expression turned solemn as the power of the Great Dao surged around him like raging tides, blasting toward the location he had sensed.
Boom! Terrifyingly immense Dao power tore through the void directly, forcibly opening a stable passage within the boundless emptiness.
Buzz! In the next instant, a vast, boundless giant island appeared within his senses.
The island was far larger than any ordinary sea island, almost like an independent continent. It could accommodate countless living beings to thrive, cultivate, and comprehend the Dao.
The entire immortal island was tightly shrouded by a grand ancient formation covered in endless profound formation patterns. Its spiritual light was restrained, and its aura was unfathomable.
"Just as I thought!" A sharp glint flashed through Yuan Yan's eyes. He hesitated no longer, stepped forward, and plunged directly into the boundless void.
He first summoned the Nine Heavens Breath Soil. That mass of Innate divine soil had initially been only about a zhang wide, but it swelled in the wind, radiating ten thousand streams of golden light and a thousand strands of auspicious radiance. In the blink of an eye, it became an incomparably heavy golden earthen wall that firmly protected him within, impervious to all techniques.
Immediately afterward, he summoned the Myriad Dao Primordial Gourd. Its mouth opened slightly, and an incomparably condensed beam of Yinyang Divine Light thundered forth.
Crash! Layer upon layer of spiritual-light ripples spread across the great formation shrouding the immortal island as the Yinyang Divine Light forcibly tore open a gap.
Seizing that fleeting opportunity, Yuan Yan transformed into a brilliant divine radiance and darted through the opening, vanishing into the boundless void in an instant.
As Yuan Yan's figure disappeared, the spatial rift above the East Sea slowly closed. The great formation also returned to tranquility. After its spiritual light flickered faintly, it vanished without a trace along with that mysterious immortal island, as though nothing had happened at all.
Yet Yuan Yan, who had already entered the protective formation, did not dare relax in the slightest.
Earlier, fearing that delays might bring unforeseen changes, he had worried that the disturbance caused by tearing through space and locating the immortal island would attract hidden experts of the East Sea. Thus, without taking the time to calmly study the formation's operating principles, he had directly forced open a gap and barged inside.
But that did not mean he could walk directly into the immortal island and seek its opportunities. The protective formation of this overseas immortal island was not so easily broken.
At present, he was trapped within a layer of the formation. To truly enter the island, he would likely have to expend considerable effort and time.
Suddenly, Yuan Yan's expression changed. He clearly sensed Chaos Astral Wind sweeping toward him head-on.
Without the slightest hesitation, Yuan Yan instantly activated the Nine Heavens Breath Soil to its limit. The thick and majestic Earth Dao flowed around it, and the golden earthen wall shone brilliantly, firmly resisting the erosion of the Chaos Astral Wind.
Chaos Astral Wind possessed infinite destructive power. It could wear away cultivators' fleshly bodies and obliterate the true spirits of living beings. To any cultivator in the Primordial World, it was an exceedingly terrifying and dangerous thing.
Naturally, Chaos Astral Wind also came in different grades. Ordinary Chaos Astral Wind derived from Chaos Law could at most threaten cultivators below the Taiyi Golden Immortal realm. But top-grade Chaos Astral Wind derived from Chaos Dao Origin could injure even Great Firmament Golden Immortals at its weakest. Even Primordial Taiji Golden Immortals, as powerful as they were, could suffer a great calamity if careless.
The Chaos Astral Wind blowing toward him now was not that powerful, but neither was it weak. It was enough to threaten a Perfected Great Firmament Golden Immortal.
Fortunately, Yuan Yan's cultivation had already broken through to the Late Great Firmament Golden Immortal realm, and he had the Supreme-Grade Innate Spiritual Treasure, the Nine Heavens Breath Soil, to protect him. Otherwise, even with his strength, he would have found it difficult to handle such Chaos Astral Wind so easily.
While fully activating the Nine Heavens Breath Soil to steadily resist the relentless erosion of the Chaos Astral Wind, Yuan Yan also focused on carefully observing the immortal island's protective formation, attempting to comprehend its operating principles and find a path into the island.
Only after observing and comprehending the formation for over a hundred years did Yuan Yan gain a preliminary understanding of its operating principles and make an accurate judgment. "To enter the immortal island, I must first break through this layer of Chaos Astral Wind and reach the edge of the formation barrier. Then, whether I find a flaw in the formation or break it by brute force, as long as I can open a gap in the barrier, I can enter the island successfully!"
With a clear judgment and plan in mind, Yuan Yan delayed no longer. He continuously poured his Dao power into the Nine Heavens Breath Soil, driving the might of this Supreme-Grade Innate Spiritual Treasure to its limit. While resisting the erosion of the Chaos Astral Wind, he fully unleashed the Yin-Yang Escape Art, causing time and space to exchange as he took a single step and crossed an endless distance through spacetime.
At the same time, he continually activated the Myriad Dao Primordial Gourd, actively drawing in the surrounding Chaos Astral Wind and breaking it down into pure Yin-Yang Source Power. In only a short while, he successfully reached the edge of the Chaos Astral Wind layer.
But at this moment, an incomparably resilient formation barrier lay between the Chaos Astral Wind layer and the immortal island, completely separating the island's interior from the astral wind layer.
To truly step into the immortal island, he still needed to tear open a gap in this formation barrier.
With a slight probe, Yuan Yan grasped the defensive strength of the barrier. Without any hesitation, he immediately chose to break open a gap by force.
Although forcibly breaking the formation would have some minor effect on the protective formation, the impact would be negligible. Moreover, this method would save the most time and spare him from continuously expending power to maintain the Nine Heavens Breath Soil against the Chaos Astral Wind.
Boom! Yuan Yan pushed his Yin-Yang Dao to its limit and fully activated the Myriad Dao Primordial Gourd. An unmatched divine radiance containing the profound meaning of Yin-Yang's myriad transformations blasted forth. In an instant, the formation barrier was melted open, creating a gap large enough to pass through.
Seizing the chance, Yuan Yan transformed into a streak of light and instantly rushed into Yingzhou Immortal Island. In the next moment, Innate Spiritual Qi so dense it seemed impossible to disperse surged toward him, mixed with pure Primordial Origin Qi and profound Dao Rhyme Spiritual Essence.
"I'm finally inside!" Yuan Yan relaxed slightly and secretly marveled, "Such dense Innate Spiritual Qi and Dao Rhyme Spiritual Essence. Which of the Three Immortal Isles Overseas is this immortal island?"
When he had previously forced his way into the island's great formation, he had also attempted to deduce the heavenly secrets. Yet this formation possessed the ability to shield karmic fate and heavenly secrets, and even he had been unable to deduce the answer.
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