In the southern star region of human civilization's territory.
Lin Yuan's figure appeared in a starry sky emitting spatial fluctuations, carefully observing the front.
"Is this one of the three hundred thirty-three entrances to the Mysterious Yellow Secret Realm?" Lin Yuan thought to himself.
The reason human civilization had not taken over the 'Mysterious Yellow' Secret Realm was that it had too many entrances.
Over three hundred of them.
And they were scattered across the universe.
For instance, within human civilization's territory, there were nineteen entrances to the 'Mysterious Yellow' Secret Realm.
"The main universe is vast and boundless. This 'vast and boundless' refers not only to its size but also to the layers of space it contains."
"Countless layers of space can give birth to small worlds dependent on the main universe, which is the origin of cosmic secret realms."
"Generally, if a cosmic secret realm is highly valuable, the strongest ones will actively act, delving deep into the spatial layers to 'pull' that small world into the main space of the main universe."
"Or they will establish stable channels to this secret realm."
Lin Yuan thought silently.
A secret realm might contain rare resources unseen in the main universe, and the more, the better.
Even large cosmic secret realms can't withstand the 'pull' of the strongest ones; if one can't do it, then two or three can.
But the Mysterious Yellow Secret Realm—
Even the strongest ones couldn't locate the exact spatial layer of this secret realm, which was unbelievable.
If the Mysterious Yellow Secret Realm had not yet emerged, it might be possible, as even the strongest ones couldn't traverse all the spatial layers of the main universe.
But the Mysterious Yellow Secret Realm had opened many times, with channels connecting to the outside, yet the strongest ones still couldn't pinpoint the exact spatial layer, which was baffling.
Not only could the strongest human beings not do it, but the strongest of the alien races couldn't either.
This was one reason human civilization believed the Mysterious Yellow Secret Realm came from another cosmic epoch; this secret realm was not a normal cosmic secret realm, and some being had deliberately hidden its coordinates.
Moreover, strong individuals who had explored the Mysterious Yellow Secret Realm occasionally found secret techniques and treasures completely different from the current universe's style.
"The calling sensation is incredibly strong now." Lin Yuan stood in the starry sky, and as he approached the entrance to the Mysterious Yellow Secret Realm, the calling sensation grew stronger.
He could even hear some indistinct voices.
"This time, I brought three ninth-rank secret treasures for protection."
Lin Yuan thought silently.
The three ninth-rank secret treasures were for attack, physical defense, and soul defense.
Although battles at the ninth rank are like contests across multiple spatial layers, it doesn't mean weapons and treasures are useless.
With defensive treasures, even if the enemy finds your spatial layer, they can't kill you.
Of course, these three ninth-rank secret treasures came from the contributions of the strongest eighth-rank geniuses of the Tianyu race.
"The main goal of entering the secret realm this time is to find the source of the call. As for the treasures within the secret realm? I'll take them if it's convenient; otherwise, I'll abandon them."
Lin Yuan set his basic strategy for the secret realm journey.
That was to avoid conflict with other strong individuals as much as possible.
Lin Yuan's purpose was different from theirs.
The reason he came now, instead of when the secret realm opened, was to avoid the 'peak period' of alien powerhouses entering the secret realm.
The Mysterious Yellow Secret Realm could only remain open for a hundred years after it opened.
So the earlier one entered, the more likely they were to gain.
Lin Yuan entered a few years later, making it less likely to encounter the first wave of alien powerhouses.
"Let's go."
After thinking for a while, Lin Yuan stepped into the starry sky emitting spatial fluctuations.
Buzz.
As Lin Yuan continued to walk into this starry sky, he felt the twisted spatial changes.
"According to the information, any strong individual entering the Mysterious Yellow Secret Realm will randomly enter the outer region of the secret realm."
Lin Yuan thought to himself.
This was why he didn't team up with other evolvers from human civilization.
No matter how they teamed up, they would be separated upon entering the secret realm, making it pointless.
The spatial fluctuations grew more twisted.
When the space stabilized a bit, Lin Yuan had already left the main spatial layer of the main universe and entered the Mysterious Yellow Secret Realm.
"Hmm?"
Lin Yuan immediately and cautiously observed his surroundings.
His physical defense and soul defense treasures were fully operational.
"I didn't enter any dangerous area." Lin Yuan looked at the surrounding yellow continent, slightly relieved.
Entering the Mysterious Yellow Secret Realm, one would randomly appear in the outer region of the secret realm.
The key here is 'random,' which means you might appear in some dangerous place.
Although the outer region of the Mysterious Yellow Secret Realm poses no threat to ninth-rank beings, those few forbidden areas are exceptions.
Even a ninth-rank powerhouse could be severely injured if they accidentally entered those forbidden areas.
"Looks like my luck is good."
Lin Yuan smiled. The initial position was quite safe for now.
"Spatial layers."
Lin Yuan carefully sensed the Mysterious Yellow Secret Realm as a complete world, which naturally had multiple spatial layers.
"This secret realm has far more than forty thousand spatial layers." Lin Yuan's inner world had developed forty-five thousand spatial layers, so he could roughly sense the number of external spatial layers.
"Can't use teleportation or instant movement."
Lin Yuan tried it out, confirming a piece of information provided by human civilization.
The Mysterious Yellow Secret Realm had an invisible spatial suppression. Ninth-rank beings could merge into multiple spatial layers but couldn't use spatial rules to teleport or move instantly.
In the Mysterious Yellow Secret Realm, the only way to travel was by flying.
"The call is coming from the core region?" Lin Yuan's expression changed slightly.
The Mysterious Yellow Secret Realm was vast, divided into the outer region, inner region, and core region.
The closer to the core region, the more opportunities and treasures there were, but the competition was also fiercer.
Besides competing with other alien races, there were the indigenous beings of the Mysterious Yellow Secret Realm. The indigenous beings in the core region were much stronger than those in the inner and outer regions.
Some could even suppress ninth-rank million-layer powerhouses.
"I need to be careful."
Lin Yuan's expression was serious.
However, even in the core region, not all places were dangerous. The treasure lands and opportunity spots were dangerous, but if there were no such spots, it would be relatively safe.
Lin Yuan had no interest in those treasure lands. He just needed to enter the core region and find out the source of the call.
"Let's go."
Lin Yuan immediately moved, turning into a stream of light and flying toward the source of the call.
A few days later.
Lin Yuan merged into multiple spatial layers, flying rapidly.
At this moment, a thousand-meter-long giant snake on the 'yellow' continent below suddenly opened its eyes.
"An outsider?"
This thousand-meter-long giant snake was an indigenous being of the Mysterious Yellow Secret Realm. Every time the secret realm opened, these indigenous beings would frantically attack the entering strong individuals.
Even the weakest indigenous beings were born in the Mysterious Yellow Secret Realm, with a keen sense of the many spatial layers within the secret realm.
The techniques of ninth-rank powerhouses in the main universe to merge into spatial layers were hard to hide from these indigenous beings.
Because this was their home ground.
Boom!
The thousand-meter-long giant snake opened its huge mouth, emitting a yellow light beam.
The light beam instantly cut through the space, heading toward Lin Yuan's spatial layer.
The key to ninth-rank powerhouses' battles was to lock onto the opponent's spatial layer, as only then could they attack the true body.
And this was the most difficult part.
Every ninth-rank powerhouse would carefully hide their true body.
They might even change their spatial layer at any time.
But these tricks were useless against the indigenous beings of the Mysterious Yellow Secret Realm.
"Hmm?"
Flying and traveling, Lin Yuan's expression changed slightly.
Swish.
Lin Yuan raised his right hand, summoning a turquoise shield in front of him, blocking the incoming light beam.
"An indigenous being?"
Lin Yuan was already aware of the abilities of the Mysterious Yellow Secret Realm's indigenous beings, and his expression turned serious.
"That attack just now was roughly equivalent to an attack from a ninth-rank powerhouse who had developed several hundred spatial layers." Lin Yuan roughly estimated.
"In that case, don't blame me."
Lin Yuan looked at the thousand-meter-long giant snake below, a murderous intent flashing in his eyes.
Lin Yuan's inner world currently had forty-three thousand spatial layers.
But this didn't mean Lin Yuan's strength was only at the forty-three-thousand-layer level.
Other ninth-rank powerhouses, after comprehending the complete spatial rules, had their inner world size at the upper limit.
Unless they were of a high-bloodline special life form, their inner world upper limit was not much different.
So, the strength of a ninth-rank being was mainly measured by the number of spatial layers they developed.
The more spatial layers developed, the stronger the strength, in direct proportion.
But Lin Yuan was different. His inner world was over a 100M miles in size.
The strength of forty-three thousand spatial layers, in Lin Yuan's case, was at least comparable to those ninth-rank powerhouses who had developed hundreds of thousands of spatial layers.
After all, his foundation was solid.
So, facing this indigenous being with only ten spatial layers of ninth-rank strength, Lin Yuan planned to end the fight quickly.
Being targeted by an indigenous being meant that even if you escaped, it would keep chasing you, making you too conspicuous.
Swish.
Lin Yuan took a step, actively emerging from the spatial layers. The power of the world operated, and the power of multiple spatial layers converged.
Directly piercing through the thousand-meter-long giant snake.
"An outsider!!"
The thousand-meter-long giant snake let out an angry roar, then its eyes dimmed, and its massive body fell to the ground.
"Dead?"
Lin Yuan approached and began examining the corpse of this indigenous being.
The indigenous beings of the Mysterious Yellow Secret Realm couldn't leave the secret realm alive.
Even if forcibly taken out, they would turn to dust the moment they left the secret realm.
So human civilization's research on these indigenous beings was not very deep.
"This should be the 'Mysterious Yellow' crystal." Lin Yuan extracted a fist-sized yellow crystal from the heart of the thousand-meter-long giant snake.
The Mysterious Yellow crystal was a specialty of the Mysterious Yellow Secret Realm and the core of the indigenous beings in the secret realm.
Such a fist-sized Mysterious Yellow crystal could easily be exchanged for a hundred thousand universe crystals in the main world.
The special power contained within the Mysterious Yellow crystal had a significant effect on certain systems of evolvers and alien powerhouses.
Indigenous beings of the Mysterious Yellow Secret Realm turned to dust when leaving the secret realm.
Only the Mysterious Yellow crystal could be preserved.
This was the only thing Lin Yuan could take from the indigenous beings.
"A hundred thousand universe crystals?"
Lin Yuan was pleased. The net worth of an ordinary ninth-rank powerhouse ranged from two million to three hundred million universe crystals.
A hundred thousand universe crystals might not be much for a ninth-rank powerhouse, but getting it now was easy.
"Keep moving."
Lin Yuan had set a strategy for entering the secret realm.
Absolutely no fighting for opportunities and treasures.
But if the indigenous beings came to him, it didn't violate his strategy.
Time passed.
In the blink of an eye, more than a month had passed.
Lin Yuan had traveled through nearly half of the outer region.
In these one or two months, Lin Yuan encountered five indigenous being attacks. These indigenous beings had varying strengths, some comparable to ninth-rank million-layer powerhouses, and some only at the early ninth rank, not even ten layers.
"In less than two months, I've obtained six Mysterious Yellow crystals, worth nearly a million universe crystals."
Lin Yuan was amazed.
A million universe crystals? Even for a ninth-rank powerhouse, earning that much wasn't easy, equating to half the wealth of an ordinary ninth-rank ten-layer powerhouse.
This was with Lin Yuan actively avoiding opportunity spots.
If he deliberately sought out opportunities, his gains might increase several times.
"No wonder those alien powerhouses are so interested in this secret realm. Even my teacher, when he was an invincible eighth rank, risked coming here for gains."
Lin Yuan shook his head slightly.
It was foreseeable that as long as one left the secret realm alive, they would certainly gain immense wealth.
"Hmm?"
"Another indigenous being has discovered me?"
Lin Yuan glanced at the yellow continent below, where a hundred-meter-tall giant bear stared at him with fury. Although separated by multiple spatial layers, Lin Yuan knew it was looking at him.
"One of the weakest indigenous beings."
"Equivalent to an early ninth rank."
Lin Yuan roughly sensed its aura, gaining some experience from killing six indigenous beings.
"Take the initiative."
Lin Yuan immediately emerged from the spatial layers, activating a ninth-rank attack treasure, and blasted the hundred-meter-tall giant bear.
In a distant place far from Lin Yuan's position.
A three-headed alien sensed something when Lin Yuan emerged from the spatial layers, looking in his direction.
"That ninth-rank attack treasure belongs to the Tianyu race? Is this human evolver the famous Milky Way Star Lord?"
The three-headed alien was also hidden in multiple spatial layers, observing Lin Yuan quickly kill the hundred-meter-tall giant bear, with a hint of surprise in its eyes.
"I didn't expect that delaying for other matters and entering the Mysterious Yellow Secret Realm later would bring such a surprise?"
The three-headed alien was intrigued.
His race was part of the Insect Race Grand Alliance, a mortal enemy of humanity.
Within the Insect Race Grand Alliance, there had long been a bounty on the Milky Way Star Lord. Even killing one of his avatars would bring rich rewards.
"The giant bear that the Milky Way Star Lord killed had early ninth-rank strength. The Milky Way Star Lord, who has just entered the ninth rank, can achieve this, so his true strength is probably comparable to a ninth-rank powerhouse with several thousand layers."
The three-headed alien analyzed, "I have developed twenty-six thousand spatial layers. If I attack the Milky Way Star Lord, I should have a ten-to-one chance."
The three-headed alien was tempted. The Insect Race offered too much, and after analyzing, he felt that dealing with the Milky Way Star Lord should be easy.
"Maybe I should give it a try?"
...
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