After another powerful fragment burst from the Compassionate Evil Bodhisattva and he cleared out the Yellow Springs Domain in Peach Blossom City, Li Hai immediately returned to the Young Military Supervisor's Mansion in the Central Capital without stopping.

As soon as he returned to the mansion, he immediately shifted his thoughts and moved his sensory perspective to the side hall within the Guiyou Cave Heaven.

Yes, Li Hai wanted to 'krypton' (consume) that high-level soul skeleton from the Compassionate Evil Bodhisattva.

He wanted to see if he could unlock some more mysterious new buildings.

To Li Hai's disappointment, after consuming this highest-quality soul skeleton he had obtained so far, it only opened up one new building.

Furthermore, this 'building' was a desolate, silent wasteland, even more barren and vast than the East and North Forest Gardens.

Li Hai was somewhat unwilling, so he walked into this boundless wasteland.

He wanted to explore it thoroughly to see if he could find anything valuable.

And this search lasted for a full hour.

This wasteland was simply too vast; its area might be more than ten times larger than the combined area of the East and North Forest Gardens.

Li Hai even began to suspect that this wasteland was not an artificial 'building' of the hell, but a real desolate world, merely fitted with a world-crossing door by the people of hell back then.

Just as his thoughts were in a chaotic state, Li Hai discovered a ruined architectural complex in the deepest part of this wasteland, abandoned for an unknown number of years.

And in a corner of this massive, city-like ruin, he suddenly found a towering stone gate with the words 'world-crossing door' inscribed on its frame.

"world-crossing door? Does it mean a door that can Transmigrate worlds?"

Standing before this so-called world-crossing door, which was about three zhang high and two zhang wide, now only a door frame remaining, Li Hai muttered while observing, "There isn't even a door panel. Can this door still be used?"

As he muttered, he circled the portal.

Then he discovered a small mark in the corner of the door frame of this portal, and this mark clearly read 'Interface Number Four'.

Li Hai was stunned for a moment, then his face broke into a joyful smile:

"Hahahaha, I understand, I understand! This portal—it can Transmigrate to Interface Number Four mentioned in the Wu Xian Federation's leftover documents!" (See Chapter 60 of this book for details)

At this moment, he was completely invigorated.

Transmigration—this is Transmigration!

Since inexplicably Transmigrating his soul to this world, Li Hai had been instinctively and extremely sensitive and concerned about such matters as Transmigration.

Therefore, long ago, when he learned from the Wu Xian Federation's leftover documents that there were such 'things' as interfaces in the world, he had always kept it firmly in mind.

He thought about when he could Transmigrate again and see what a new world would be like and what kind of Cultivation system it would have.

But while fantasizing, Li Hai also knew that if he wanted this idea to truly come true, it would probably be as difficult as ascending to heaven.

Because he had no clue how to go about such Transmigration.

But now, in this new building in Guiyou Cave Heaven, there was actually a portal that could Transmigrate to a new world—this truly made Li Hai overjoyed.

Just as Earthlings are incredibly curious about alien civilizations, he was equally curious about the so-called different worlds.

However, after studying this portal, Li Hai discovered a problem.

That is, this world-crossing door did not have any kind of switch, so he had no idea how to activate this portal.

However, Li Hai unexpectedly found a spherical groove at the base of this portal.

And within this head-sized groove, there were many things similar to electrodes.

This made him wonder if this portal needed a 'battery' to be officially activated.

"But this battery—"

Li Hai frowned in thought, "Where should I look for it?"

It was strange.

Just as Li Hai was pondering, the mysterious precognitive ability suddenly emerged from his sea of consciousness and gave him a vague guidance:

...Ice Lake...

"Ice Lake?"

Feeling the mysterious precognitive ability that had disappeared again, Li Hai murmured, "Could it be referring to that place?"

Previously, Li Hai had unlocked an empty Ice Lake, but since he found nothing there, he never went back, considering it a wasteland.

But now it seemed that perhaps that Ice Lake... was not a wasteland.

Thinking this, Li Hai's ethereal body immediately dissipated.

When he reappeared, he was already in that side hall.

Immediately, he entered the silent Ice Lake through this side hall.

"Will there be a 'battery' for the world-crossing door here?"

Standing on the thick, frozen lake surface, Li Hai frowned as he looked into the dark, deep water below.

Following his gaze, his spiritual perception suddenly rushed into the dark, lightless lake water below.

A moment later, his perception reached the bottom of the Ice Lake, two thousand zhang below the surface.

But in this cold lake bottom, Li Hai did not find any so-called 'battery'.

However, Li Hai was not anxious.

With a thought, a surging torrent of magical power suddenly appeared at the bottom of the lake, and like a thick Dragon, it directly dug and drilled everywhere at the bottom of the lake.

Whoosh, whoosh, whoosh! For a time, countless mud and undercurrents churned and rolled, as if many giant water monsters were frolicking and playing at the dark, deep bottom of the lake.

Until a certain moment—

"Found it!"

Li Hai's eyes on the lake surface suddenly flashed brilliantly.

Following his spiritual perception all the way down, to the bottom of the lake, two thousand zhang deep from the surface.

In a certain corner there, Li Hai had actually dug out with his magical power an ancient building that had completely rotted away.

And inside this building, which was too decayed to discern its specific shape, hundreds of head-sized golden spherical objects were haphazardly piled up.

Strangely, even though these spheres had experienced an extremely long period of time, their surfaces were still smooth and golden, without any damage or signs of decay.

A subtle intuition 'told' Li Hai that these golden spheres might be the portal's 'battery' he was looking for.

"Let's try some."

While pondering, Li Hai used his magical power to grasp a dozen golden spheres from a distance and pulled them sharply, quickly dragging them two thousand zhang, penetrating the thick ice of the lake surface, and making them float before his eyes.

Then, holding these golden spheres, he quickly traveled towards the side hall.

After some time, he once again reached the world-crossing portal located deep in the wasteland.

Then, when Li Hai lifted the entire world-crossing door, inserted a golden sphere into the spherical groove, and then set the portal upright again