Chapter 319

With the aid of overclocking, the blurred spiritual runes reflected in his spiritual sea were forcibly cleared, and the dizziness in his mind vanished.

When Wang Yu concentrated his spiritual sense on a single red spiritual rune, the dizziness returned faintly, and the rune trembled, growing even more blurred.

Wang Yu's heart leapt—he immediately released a stream of spiritual thoughts, all wrapping around the rune.

After activating overclocking, all nine spiritual thoughts entered synchronized overclocking mode, which surprised him.

The previously blurred rune began to change under the forced extrapolation of multiple overclocked spiritual thoughts.

First, a layer of ash-like substance peeled off the rune's surface, scattering tiny red sparks; then the red light slowly stretched and condensed into crimson crystal threads, but after a while, these threads slowly drew together, gradually forming a tangled knot of countless glowing filaments.

Before the knot could stabilize, a strange vibration occurred, and the knot began to melt bit by bit into a pool of glistening liquid…

The extrapolation process was slow!

Extremely slow!

Wang Yu immediately noticed the stark difference from when he had extrapolated the entry-level method rune diagram before.

Unlike the effortless extrapolation of the entry-level method rune diagram, now, while extrapolating this isolated spiritual rune, he clearly felt subtle tugs from other runes—what should have taken one unit of effort now required hundreds, even more.

The extrapolation speed was incomparable to before, crawling like a snail.

Wang Yu was startled, yet he steadily consumed his spiritual energy and persisted.

…

Three days and three nights later.

After exhaling, Wang Yu wearily retracted his spiritual thoughts from the beast's claw.

In the reflection within his spiritual sea, one crimson, crystalline spiritual rune within the claw's complex method diagram had become crystal clear.

But his face now showed obvious exhaustion.

Three days and three nights of uninterrupted extrapolation, not daring to pause or divert his attention even slightly, fearing the entire process would be ruined—even with Wang Yu's formidable spiritual sense, a deep weariness still washed over him.

This was only one of ninety-eight spiritual runes—meaning it would take at least a year to fully comprehend the entire Flame Blade method diagram.

During this time, he could do nothing else; he could only focus entirely on extrapolating this method diagram.

The moment Wang Yu thought of this, his face turned slightly green.

No wonder the gray-robed elder guarding the Scripture Pavilion insisted no one could comprehend this primordial technique.

With his powerful spiritual sense and the aid of so many overclocked spiritual thoughts, he still struggled so painfully—others would surely never succeed.

But he was only at Foundation Establishment now, with countless matters to handle; how could he spend a whole year just extrapolating one technique?

It seemed he must set aside the extrapolation of the "Flame Blade" method diagram for now, attend to more urgent matters first, and return to it when free.

But the most important thing now was to restore the energy he had depleted these past days.

Wang Yu sighed and put away the beast's claw.

Then he took a small vial from his storage pouch, swallowed a Grain-Abstaining Pill, left the secret chamber, returned to a bedroom, and fell into deep sleep.

Half a day later, Wang Yu walked out of the bedroom, refreshed and alert.

This time, he did not go to the meditation chamber—he headed straight for the most secluded, shaded corner of the cave.

The corner appeared empty, as if devoid of anything.

As Wang Yu approached, he formed a hand seal, and a pale blue banner appeared in his hand; he swept it forward.

"Puff!" A thick white mist surged forth, nearly engulfing the entire corner.

He had laid a sealing array here.

Wang Yu merely waved the pale blue banner, and the mist vanished swiftly; in the center of the corner appeared a dark, shadowy chamber.

The dark chamber was small, barely a zhang tall, but its walls were plastered with countless yellow talismans, and several banners stood planted on the ground—white bone flagpoles, black banner faces.

The moment Wang Yu appeared, the banners stirred without wind, emitting low, mournful wails—they were unmistakably Yin Soul Banners, favored by the Black Soul Sect.

Wang Yu ignored them, walked straight to the black chamber, brushed his hand over the door, and the talismans fluttered down; the door opened silently.

He stepped inside.

The interior was equally small, but the floor was covered in white, glistening beast bones—some intact, measuring a zhang in size; others incomplete, only a chi long; still others shattered into fragments, no larger than a palm.

Above these bones floated thirteen tall, heavily armored white bone skeletons, clad in thick gray-white bone armor, seated in meditation around a zhang-tall bone altar.

Occasionally, fragments of beast bones rose from the ground and vanished into the skeletons' bone armor.

The bone-armored skeletons' chests rose and fell faintly; wisps of black qi entered and exited their nostrils—as if they were practicing breath cultivation.

Above the bone altar, black qi swirled, and a miniature Yin Soul Banner, slightly more than a chi long, hovered there, flickering faintly within the mist.

The moment Wang Yu entered, the thirteen bone skeletons—without moving their bodies—turned their skulls in unison, all staring at him at once, perfectly synchronized, sending a chill through the air.

Wang Yu, unmoved by this eerie sight, gazed at the miniature banner on the altar and murmured:

"All the demonic beast spiritual bones collected were not in vain—I've nurtured all these Bone Demons to Qi Refinement mid-stage; now, this Yin Soul Banner is just a hair's breadth from completion."

No sooner had he spoken than he gestured toward the bone altar.

The miniature banner shot through the air with a "whoosh," landing squarely in his hand.

He gripped the banner and waved it into the wind; amid swirling black qi, it rapidly grew taller and larger, transforming in moments into a zhang-tall banner.

The flagpole was pale, bone-white and eerie; the banner face, pitch-black as ink, radiating a chilling, icy aura—clearly far superior to the few Yin Soul Banners planted outside.

Wang Yu remained calm, channeling his internal qi into the artifact.

The banner emitted a low wail; more chilling black qi surged from its surface, and eight black spiritual runes appeared sequentially along the flagpole, with a ninth rune flickering faintly—yet unable to fully form.

Wang Yu stared at the black runes on the bone flagpole, his expression thoughtful.

Qi Refinement mid-stage Bone Demons and an entry-level Yin Soul Banner can be fused into a Bone Yin Demon Banner!

Thirteen Bone Demons were sufficient, but this Yin Soul Banner, fed with vast amounts of yin souls, was nearly ready to spontaneously form its ninth rune—fusing it now would be a waste.

Wait a little longer.

After all, he already had the Mi Mountain Seal granted by the Heavenly Toad Ancestor; there was no rush to forge a second-rank Bone Yin Demon Banner.