He felt along the barrier wall for a full circle, but Lu Heng couldn't find any entrance to pass through.
If this barrier operated on the same principle as the city entrances in his space, there should be an entrance here.
But why couldn't he find one after searching?
The next moment, Lu Heng exploded with power. Along this barrier area, a patch of vines suddenly shot up from the ground.
Lu Heng wanted to see how large this barrier was, and in case the entrance was above, he definitely wouldn't have been able to feel it from below.
However, to his slight disappointment, the vines covered the entire barrier area, and he still found no penetrable entrance.
Wrapped by the vines, Lu Heng could also see how large the area without zombies was.
Although the area wasn't vast, it was very tall.
The vines extended along the barrier for about twenty stories before finally reaching the top, covering the entire barrier area.
Lu Heng tested it a few times, his vines constantly tapping against the barrier, trying to find any loose spots.
Without an entrance, did he have to blow up this barrier?
"Master, the zombies in the distance seem to have stopped surging this way."
As Lu Heng was struggling with the barrier, Lin Xue noticed the situation of the zombies within the city and reported to Lu Heng.
Lu Heng glanced at the area completely covered by vines and confirmed again that the zombies here were likely being controlled or attracted by something within the barrier, which was why they stopped gathering here after the barrier was enclosed.
If they could enclose this area, they could clear it, at least clearing the zombies nearby and creating a safe zone for him to figure out how to break through this barrier.
With that thought, Lu Heng withdrew his hand and released all the long-range attack animals from his space.
"After clearing the nearby zombies, A Lan, you guys be careful not to touch these creatures, or you'll die."
With no time to explain much, Lu Heng could only give a slight reminder.
"We know, the Director told us," the snake-dragon beast A Lan nodded in response.
Then the contracted animals scattered and began to frantically hunt the zombies outside.
Under Lin Xue's control, the zombies seemed to have forgotten to resist, standing still and waiting for Lu Heng and his group to slaughter and harvest them.
Lu Heng observed the surroundings. After clearing the area, he summoned a Roc to fly into the air and begin building a wall.
Soon, they cleared a large area around the barrier and built a towering, sturdy wall.
Lu Heng recalled the contracted animals on the ground back into his space, leaving only the flying Golden Eagles to scout the situation outside the wall.
He retracted the vines covering the barrier and found a spot to sit and observe.
Through the barrier, he could clearly see the situation inside. This should have been a part of the city, enclosed by something that prevented anything from the outside from entering.
While contemplating, Lu Heng returned to his space, wanting to find some ideas from the few exits in his space.
The city entrances in his space were all opened by consuming the crystals within zombies.
There was still one place that remained unopened, and Lu Heng was unsure what kind of world lay within.
However, the touch of it felt the same as the barrier in Luocheng.
Crossing a few of the space's entrances, Lu Heng carefully observed the situation at each entrance.
But when he stepped into the high-dimensional space again, he detected a red light flashing within that robot, and it was flashing very frequently.
"What's going on? Is it going to self-destruct?"
Lu Heng didn't know if an explosion of this thing in his space would bring danger to him or his space. There were still many things to explore in the high-dimensional space, and he didn't want it destroyed.
Anyway, if the barrier in Luocheng outside needed to be opened, and if this thing self-destructed, he could drag it outside and see if the power of this high-tech product could blast open that invisible barrier.
While thinking, Lu Heng dragged the robot out of his space quickly.
He threw the robot, which was flashing a red light, towards the barrier, but a strange scene appeared before Lu Heng's eyes again.
The robot actually penetrated the barrier and moved towards the inside.
Lu Heng reflexively controlled his vines to bind the robot's feet, but the inertia was too great. The robot still entered the barrier entirely, leaving only a vine in Lu Heng's hand.
Lu Heng quickly leaped to the barrier. He tugged on the vine in his hand. The vine still had momentum and had not detached from the robot, nor had it been cut by the barrier.
But from the outside of the barrier, he couldn't see a robot appearing inside.
The robot inside could not be pulled out again.
So, this barrier was a mirror, a physical projection scanned from the environment inside.
It wasn't a barrier from a fantasy world.
Lu Heng tried again, shortening the vine in his hand. He reached out with one hand towards the point where the vine touched the barrier, trying to probe inside, but it was still impossible.
"Did he have to tie himself to the robot just now, so he could go in together?"
"Wait."
The robot could go in!
Then...
Lu Heng took out a few more items from the high-dimensional space and threw them at the barrier. As expected, the items disappeared after entering the barrier.
So, was the world inside the same as the high-dimensional space?
Could it be that the barrier was connected to his space? But where was the connection point?
So, should he explore from his space, or find a way out from here?
The high-dimensional world in his space was inconvenient to explore, so why not...
Afterward, Lu Heng brought out a pile of miscellaneous items. He tied these items to himself, and just in case, he put on a spacesuit inside.
He shook himself; the items were tied securely. Lu Heng recalled Lin Xue and all the mutated animals back into his space.
In case he couldn't come out for a while after entering, or if he could never come out, these animals, without their contractor controlling them, would be a devastating disaster for the humans in the post-apocalyptic world.
With everything prepared, Lu Heng stared at the invisible barrier in front of him and took a firm step forward.
As expected, wrapped like a mummy, Lu Heng's foot stepped in.
Immediately after, his figure disappeared from Luocheng, as if he had never been in this world.
Through the lens of his spacesuit helmet, Lu Heng felt a flash of white light.
Soon, a scene both familiar and strange appeared before Lu Heng's eyes.
This was indeed not the environment of Luocheng he had seen from the outside. Everything here was exactly as Lu Heng had seen in that high-dimensional space.
Moreover, after adapting to the environment here, besides seeing the robot he had thrown onto the ground, he also saw the alien species from that projection.