"This is the ultimate impact of the bloodstain on the wings." Luo Feng communicated with the Shi Wu Wings on his back. "Shi Wu, can my current will recognize those white wings as my master?" Asking Shi Wu was the clearest way; after all, Shi Wu was a part of that ultimate treasure. "Far from it!"

"Master, your willpower has increased immensely over these past twelve hundred years, already ranking among the top for a Universe Master. But the leap from Universe Master to Universe Supreme Being is a fundamental crossing! Moreover, willpower undergoes an essential transformation. Master, you are still far from the threshold," Shi Wu stated bluntly.

Luo Feng remained calm; his gains this time were already substantial. The billions of years spent in the Beast God Realm did not yield as much improvement in willpower as these past thousand-plus years. It had to be admitted that high-intensity pressure was indeed a method to temper willpower, but prolonged exposure to extreme duress could lead to collapse, damaging the will instead—it was a double-edged sword.

Willpower is unlike comprehension of the Laws. Comprehension of Laws progresses step-by-step, whereas willpower tests the strength of the inner heart!

"I have been here for over a thousand years; it is time to leave." Luo Feng took a deep look at the white wings, then the Star Tower began to move. He needed to continue tempering his will! The Sea of Universe held too many dangerous places; just the three Great Forbidden Zones offered every kind of perilous environment imaginable—illusionary techniques, willpower shockwaves, metal, wood, water, fire, earth, wind, lightning, light… all manner of natural powers were present.

The three Great Forbidden Zones held many places for tempering willpower. It all depended on whether one dared to venture there!

"Human!" "I will make you regret this, and I will make your four-winged spirit regret it too." A fluctuation reached him.

"The next time I return, it will be to claim you," Luo Feng transmitted his conscious fluctuation directly.

"Impossible, impossible! You dream!"

Whoosh

The Star Tower had already flown away; Luo Feng paid no more attention to the white wings. Just as countless powerhouses in the Original Universe could not deal with the Star Tower back then, Luo Feng likewise could not handle the white wings right now! Even other Universe Supreme Beings would likely be forced to give up in frustration.

"Next time," Luo Feng murmured.

"The Shi Wu Wings have undergone earth-shattering changes; I wonder what their true power is now," Luo Feng mused inwardly. The aura unleashed when the Shi Wu Wings expanded to their maximum previously was surely top-tier even among Peak Treasures! He felt it might rival the Divine Wood of Oddities.

"Let's test it!"

"Golden Country!" Luo Feng instantly burned his divine power to activate it.

Silently... A faint, hazy golden radiance instantly appeared, enveloping the entire mysterious space and even seeping into some of the rock walls at the edges of the mysterious space. The radius of this Golden Country could reach eighty light-years at its maximum, far surpassing the size of this wing space... so it could naturally cover everything.

However, the endless storm of blade-like energy still raged, having long shattered the spacetime to pieces. Even the Golden Country could not control the spacetime here. It only fully controlled the stable space immediately in front of and behind the white wings, and some pockets of space within the surrounding rock.

"Too powerful..." Luo Feng was stunned.

He instantly felt that the Golden Country manifested by the Shi Wu Wings at their peak perfection was comparable to the combination of the 'Microcosm,' 'Golden Country,' and 'Ocean of Flames' he had known before arriving.

"This is..." Luo Feng was overwhelmingly delighted. Considering his divine power was somewhat less than that of many Universe Masters... the Golden Country was this formidable! This must truly be a treasure comparable to the Divine Wood of Oddities.

"Hmm? Where is that..." Luo Feng paused.

He forgot his awe, instead registering surprise, because the Golden Country enveloped the entire mysterious space, penetrating even the edge rock walls. Thus, he was shocked to discover... that this mysterious space, besides the cave passage Luo Feng had initially entered through, actually contained a cave passage leading in another direction.

"There’s another cave passage? Where does it lead? Those white wings couldn't have just materialized out of thin air; they must have drifted over from somewhere," Luo Feng’s thoughts raced.

"Let's go see."

Luo Feng immediately made his decision. One reason was the concern that the other passage might lead other powerhouses to discover this place; the other was simple curiosity. Luo Feng piloted the Star Tower, flying rapidly. It still took over a month before the Star Tower finally reached the entrance of that cave passage.

"There's a light screen too..."

It was a dark red cave passage. The Star Tower drilled directly through that layer of light screen and entered a dark passage tinged with wisps of dark red. The Star Tower continued to fly.

After passing through nine successive light screens... there were no more screens. The Star Tower flew forward cautiously. "Dark red passage." Inside the Star Tower, Luo Feng had it advance through this dark red passage, which was millions of kilometers high and endlessly deep. He dared not venture out himself, opting instead to send his Demon Slaughter Clan clone to investigate first.

Whoosh!

The Demon Slaughter Clan clone left the Star Tower and flew ahead of it. The Demon Slaughter Clan clone and the Star Tower flew one in front of the other through the dark red passage. Furthermore, Luo Feng activated the 'Golden Country,' maintaining a range of just ten billion kilometers as a precaution against any danger.

"So hot." The Demon Slaughter Clan clone felt intolerably hot as it flew within the passage.

"Dark red rock walls..." The Demon Slaughter Clone flashed next to a rock wall and reached out to touch the dark red surface.

"Hiss~" A strange thermal energy rapidly transmitted along the clone's palm. The clone’s arm began to melt like candle wax, rapidly dripping away, and this thermal energy was swiftly transferring inward. Terrified, the clone violently shook itself, jettisoning half of its body away.

Then, the life crystal core surged with energy again, condensing the divine body.

"I am, after all, a body of a Universe Venerable..." The Demon Slaughter Clan clone stared at the rock wall in shock. "The peculiar thermal energy contained within the rock wall can incinerate me?"

"Forward."

Luo Feng’s curiosity intensified. The Demon Slaughter Clan clone and the Star Tower proceeded one after the other... maintaining high speed, occasionally using short-distance teleports of one or two billion kilometers.

"It's truly far. I've already advanced several light-years along this cave passage," Luo Feng marveled. The passage sometimes presented fork-offs. Luo Feng naturally chose the widest junction to proceed and recorded the map—the computational speed of a supreme powerhouse made recording maps effortless.

He pressed onward.

"The Wing Space... should be at the edge of the main peak body of the Apex Mountain Range in the Slope Mountain Realm. If I've advanced several light-years in this direction... doesn't that mean I’ve entered the mountain's interior?" Luo Feng reasoned.

The Slope Mountain Realm's main peak was majestic and mysterious, featuring numerous caves leading to the outside world. Treasures often drifted out through those passages into the water regions...? Many powerhouses dared not drill against the flow of the caves towards the mountain interior, as it was too dangerous. Luo Feng, relying on the Star Tower being a Palace-type Ultimate Treasure... and his curiosity about the white wings' origin, dared to follow this cave passage inward.

After a long time... He continuously encountered fork-offs, and Luo Feng always chose the widest one. As he proceeded, the temperature rose higher and higher... even the Demon Slaughter Clan clone had to be recalled. The external temperature had become so scorching that the clone could be instantly incinerated into ashes in the air.

"Legend says... the inner regions of the Slope Mountain Realm are fraught with danger. Even leaders like Chaos City Master could perish there. At the core, even Universe Supreme Beings might fall," Luo Feng inwardly felt a tremor of fear. "The external heat alone can incinerate a Universe Venerable here. The mountain interior is truly terrifying!"

The Star Tower provided both material attack defense and soul protection. Dual defenses for both body and soul.

Only then did Luo Feng dare to press on.

"What lies at the end of this cave?" Luo Feng wondered.

After flying for a full thirty-plus light-years, he finally saw the end in the distance. The Star Tower had arrived in a vast, gigantic location resembling a flame cavern. Rumble~ Streams of white molten flame churned and rolled. Hundreds of molten flame channels intersected, passing through this massive flame cavern and extending towards unknown ends.

These streams... were all surrounded by red, cyan, and gray three-colored halos. Moreover, boundless flames permeated the surrounding space. Yet, the surrounding space was strangely solidified, without any shattering, and without any spatial fluctuations whatsoever. Teleportation was impossible here.

"Hiss~" Luo Feng attempted to probe out a trace of divine power from the Star Tower... it didn't even touch the flames, but was instantly incinerated and annihilated in the surrounding air.

"If the Universe Ruler didn't have armor protection, it would be annihilated just by being in the ambient air," Luo Feng muttered to himself. "I drilled backward from the cave in the mysterious space to arrive here. I wonder if this belongs to the inner region of the Slope Mountain Realm... or the core zone."

With a thought, The Star Tower slowly flew forward and brushed against a stray flame particle floating nearby.

"Hiss U~" The flame scorched the Star Tower. Inside the Star Tower, however, the temperature registered no change.

"An Ultimate Treasure is truly an Ultimate Treasure..." Luo Feng praised, though this was within expectation. Based on common knowledge, Ultimate Treasures would not be damaged in the three Great Forbidden Zones! Though he had seen the damaged white wings earlier... that was the result of an earth-shattering battle.

"What a massive cavern."

Luo Feng dared not randomly venture along those streams of molten flame. If he ventured too far into the unknown, turning back might become impossible. Luo Feng navigated the Star Tower through this flame cavern, ensuring the Tower did not enter the molten streams directly. Occasionally, splashes from surging streams would hit the Star Tower, but it remained unharmed.

"The cave pillars that remain undamaged under these flames and molten streams are also quite peculiar," Luo Feng observed closely.

He noticed that while the pillars appeared ordinary at first glance, upon closer inspection, every grain of sand in the pillar seemed capable of refracting light, faintly suggesting the presence of numerous spaces within.

Swipe~ The Star Tower suddenly vanished near a pillar, and then instantly reappeared outside.

"Space?"

"Does every grain of sand contain a space?" Luo Feng had been startled just now. When the Star Tower touched a grain of sand, it entire entered the space within—a barren, void space. Since Luo Feng had comprehended the entire Law of Space, the Star Tower easily extracted itself quickly.

"Every pillar must be composed of countless grains of sand, and every grain contains a space? What kind of material is this? I have no records of anything like this. Could it be that this place is so extremely dangerous within the Slope Mountain Realm that my human race hasn't had a powerhouse reach this far?" Luo Feng wondered privately. There was no record of such pillars within the human race's archives.

"Hmm?"

Soon, Luo Feng was drawn to another pillar not far away. "What is that..."