In the next few days, Lu Xuan and the others were basically on their way except for occasionally stopping to rest and reorganize.
During this period, they would inevitably encounter attacks from some monsters, and the further north they went, the higher the frequency of encounters.
However, those monsters were basically killed by them to avoid exposing their whereabouts.
Finally, a few days later they arrived at their destination, Burrose City!
However, what surprised them was that many monsters gathered around Burros City.
This once human city has now become a gathering place for monsters!
They did not approach rashly, but hid in a hidden place outside the city, intending to find out the situation here before taking action.
At this time, Lu Xuan touched the storage ring with his palm and took out a black metal box.
"What is this?" Ellie asked curiously.
Sylph, Demon Tree, Yundan and the little girl Amy also looked at it curiously.
Ling Bing's reaction was much calmer than theirs, because she had roughly guessed what was inside the black box.
Lu Xuan smiled and did not explain. He stretched out his thumb and pressed on the edge of the black box. A red light swept across his thumb, and then he heard a "click" sound, and the black metal box automatically unlocked and opened.
Looking at this scene, both Yundan and Amy were shocked.
They had never seen anything like this before, and just seeing the way the box was opened now made them very surprised.
Fortunately for Sylph, Ellie and the Demon Tree, after all, they have been to the Earth and stayed there for a long time, so they have some understanding of things on the Earth.
Although they don’t know what is in the box in front of them, at least they know that the things in this box should be the products of technology on earth!
Soon, the box was opened by Lu Xuan, and what was displayed in front of everyone was items that seemed to be the size of flies.
In addition, there is a silver metal bar of about ten centimeters.
"Brother, what are these?" Amy asked excitedly.
She was like a child seeing a novel toy, full of great interest in what was in front of her.
Ling Bing on the side introduced: "This is the latest product of our World Human Alliance. It is called a battlefield detector. It is mainly used to detect the situation in an area!"
"It can accurately detect the number and specific locations of monsters in the target area by detecting energy fluctuations in the air and using photothermal scanning!"
After saying that, she looked at Lu Xuan with some surprise and said, "I remember that the Ministry of Science and Technology only launched the conceptual design of this type of product last year. I didn't expect that the finished product would be available so soon, and you actually got it so quickly!"
"The alliance leader asked me to bring this with me before I left. I said I wanted to try it out to see its actual working performance. I just brought it with me just in case, but I didn't expect that I would actually use it!" Lu Xuan said with a smile.
Today's earth, although it is in a period of war, the main development theme is supernatural fighting, and martial arts that have attracted much attention because of Lu Xuan.
However, this does not mean that the earth is lagging behind in technological development.
On the contrary, due to the long-term war with monsters, many technological products targeting monsters have been produced, such as the armor of human supernatural warriors!
The same is true for the set of battlefield detectors that Lu Xuan took out. In order to reduce the casualty rate caused by exploring the abyss area, it was proposed and put into actual research and development.
The metal bar in Lu Xuan's box clicked twice at the end. The metal bar suddenly split into two and automatically opened apart, forming a screen in the middle.
This is a handheld computer that can be used to control the detector.
Under the surprised looks of Yun Dan and Amy, Lu Xuan began to operate the handheld computer.
Soon, the metal particles originally lying in the black box suddenly flew up.
Yun Dan was startled and quickly became alert.
However, she soon discovered that these black things did not attack them, and she breathed a sigh of relief.
On the contrary, Amy was full of curiosity about these things and even wanted to reach out and touch them.
Unfortunately, she was not tall enough and couldn't reach them even if she stretched out her hands.
Several attempts failed, and she suddenly became so angry that her face bulged.
Yun Dan was a little helpless when she saw this, but when she looked at these very "weird" things, she became more and more interested in the earth that Lu Xuan and the others talked about.
At this time, under the control of Lu Xuan, those black detectors vibrated their metal wings like bees and flew quickly towards Burros City.
Soon after, the topographic map of Burros City began to appear on the screen of the handheld computer.
Sylph, Ai Li, Yundan and Amy, who were from Xinglan Continent, all stared at the pictures on the screen.
To their shock, the picture on the screen started out as a simple sketch, showing only the outline of Burrows City.
However, as time went by, the details in the sketches became more and more detailed.
Not long after, the current situation of the entire city was displayed in front of everyone in three dimensions as if it had been scanned.
On the picture, the distribution locations of all the monsters in the city and nearby are marked.
The more powerful the monster, the brighter the punctuation points on the picture will be, allowing people to see the status of the monsters in the city at a glance.
"It's amazing. I didn't expect that there is such a powerful thing on earth!" Ellie said in surprise.
Sylph nodded and also sighed: "It is indeed very convenient!"
It has to be said that these technological products on the earth always make people feel dazzled.
I heard that the base is over there, and many young elves are already exposed to and learning to use human technological products. Even her mother, the current Elf Queen, has joined the battle network of the human alliance.
With the alliance with humans, the wind elves are also developing rapidly!
Not just their clan, but other races as well.
It is said that someone from the dwarves is studying how to combine magic circles with human technology!
Perhaps, it would be the right choice for their tribes to migrate to the earth!
As for Yundan and Amy, they had long been stunned.
All this was completely beyond their imagination and was something they had never seen before.
On the contrary, the Demon Tree, after seeing this, didn't react much, or even showed any interest.
At this time, Lu Xuan was actually a little curious.
"I didn't expect that these things can actually work in another world. There is no battle network for long-distance communication here, so how do they communicate?" Lu Xuan said.
At this moment, Ling Bing on the side suddenly spoke.
"When the concept of the battlefield detector was first proposed, the communication issue became the biggest problem. Because of the special geographical environment of the abyss, the signal of the battle network will be greatly interfered. The deeper you go into the abyss, the more so!"
"So, in order to make the detector work stably, this is a difficult problem that must be overcome. For this reason, researchers have done a lot of research experiments."
"Later, they discovered a special energy fluctuation in the air that could be used as a medium for signal transmission, and the range of this energy fluctuation covered almost the entire earth after the catastrophe!"
"Now it seems that the same energy fluctuations exist in Xinglan Continent, which is why the battlefield detector can work stably on Xinglan Road!"
Listening to her explanation, Lu Xuan suddenly had the illusion of going back to his previous life and taking a course on communication principles in college.
When he said that sentence just now, he actually didn't really want to understand the working principle of this battlefield detector, he just subconsciously expressed his doubts.
In his previous life, he was not engaged in scientific research and did not know much about such things, not to mention that the current development direction of earth's science and technology is quite different from that in his previous life.
However, he didn't expect Ling Bing to answer him seriously!
Unexpectedly, Ling Bing was not only an outstanding supernatural warrior, but also an academic master.
However, this is in line with Lu Xuan's impression of her.
From the first time they met, Lu Xuan felt that she was a serious and smart person.
Therefore, Lu Xuan was not too surprised that she would know this information.
Lu Xuan could generally understand Ling Bing's explanation.
But Sylph, Ellie and the others had already heard it in confusion.
Although they had no idea what she was talking about, several people suddenly felt that Ling Bing was very powerful!
With the completion of the comprehensive topographic map exploration of Burros City, the situation of monsters in the city has also been basically discovered.
However, what surprised Lu Xuan was that there were nearly 10,000 monsters entrenched in this long-destroyed city!
Unexpectedly, one city could hide so many monsters!
"What is going on here? Why are there so many monsters gathered? And there is an emperor-level monster?" Ling Bing also said in surprise.
In the center of the map, you can see a much brighter light spot, which is an emperor-level monster!
Not only that, there are also many monsters gathered near the city.
"What should we do with so many monsters? Just rush in and destroy them?" Sylph asked with a frown.
When Yun Dan heard this, he became restless.
Just rush in and destroy them?
Is this sylph serious?
There are so many monsters entrenched in this city, and there is even an emperor-level monster. The strength of other monsters is obviously not weak.
There are only a few of them, how can they rush in and destroy them? I'm afraid they will be torn apart before they even enter the city, right? !
She knew that Lu Xuan and the others were not weak in strength, especially since Lu Xuan could easily kill an emperor-level monster and should have reached the advanced holy realm level!
However, at this moment, she still felt that the wind elf in front of her was probably crazy!
Originally, she thought that Sylph was obviously more calm and rational than Ellie, but now it seems equally unreliable.
However, what surprised her even more was that Lu Xuan and Ling Bing actually seriously considered it after hearing her proposal.
At this moment, Yun Dan was completely confused.
Damn it, do these people really think that just a few of them can wipe out the monsters in the entire city?
