Hundreds of rat-demon monsters crawled out of a factory. Because he had just dug out a few rat holes yesterday, Song Xing mistakenly thought that this place was occupied by a large group of rat demons.

But he soon discovered that these rat demons were very unusual.

First of all, although ordinary rat demons have the consciousness of a race, they attack humans together in a nest. But if a few hundred of them are mixed together, there will definitely be a fierce fight.

Instead of going in and out in a neat and orderly manner like the current one.

Even if there is a demon general to lead, such an order cannot be achieved. Because the demon general can only simply control the little demon under his command. Too fine control is a very thought-consuming thing—You Qiao said.

In addition, what these rat demons are doing is also very strange.

When they climbed out, Song Xing found that there were three large piles of ore opposite the factory. At first he also saw the ores, but ignored them. Looking closely, I found that the ore was very new in color, and it seemed that it had just been mined.

Like a tidal wave, the rat demon swarms climb the ore pile, crush the hard ore with their sharp teeth, and gulp it down. They don't make a noisy chirping sound like a normal rat demon, but they make a frightening creak from biting the ore.

This is another strange behavior. But so far, humans have only found a small number of gold-eating beasts in the depths of the mines, and they have a habit of eating ore. But rat demons certainly don't eat ores.

This must be a completely new kind of youkai, and the illustrated book has not yet been recorded. Song Xing stood a little far away, and he couldn't see it clearly. He was going to get closer.

However, Song Xing is not a brave and unscrupulous person, and it is not his style to break in rashly. After a few more moments, he tore off a piece of paper from the back of his notebook and folded it into a paper airplane.

Holding it in his hand and blowing a breath, he flew the paper airplane towards the location of the rat demon group.

The humble paper airplane arced and silently skimmed over the ore pile. From this point of view, there should be a lot of rat demons who saw this uninvited guest.

But they don't react, still gulping down the ore. In just a few moments, half of the mine pile had been eaten. Many rat demons had large bellies, apparently stuffed with undigested ore.

Poor eyesight. Song Xing silently wrote down the first feature in the notebook.

The paper airplane circled twice more, flying lower and lower, until it finally lost all momentum and fell headlong to the ground.

Smack. There was only a soft sound on the ground, which should have been drowned out by the noise of the demons grinding their teeth. But the entire group of demons suddenly froze, and then swarmed like sharks smelling blood.

The paper airplane was submerged and shattered in an instant.

But it has also fulfilled its mission.

Song Xing once again made a note in the notebook: the sense of hearing is strong, but the sense of smell is unknown.

He had a little bit of his own breath attached to the paper airplane, and many youkai could sense this smell and find the lone human from a distance. But since the paper airplane was discovered the moment it landed, Song Xing couldn't be sure how much the smell played a role in it.

Song Xing named the newly discovered monster "Gold Swallowing Rat" and recorded several characteristics that he had just identified. This is an obligation of advanced practitioners.

If a new breed of demon is discovered in the wild, it should be recorded and reported to the New World Association in a timely manner, so that the cities can communicate with each other. One of the crucial reasons why humans can be at the top of the biological chain is because of their solidarity. Although humans often fight each other, that is what only happens when there is no external enemy.

Although Marina is said to be hostile to the Niocene, it is not completely devoid of contacts. Because the New World Society is not a monolith, don't forget that there are also people and horses from Zhou Qingxue and his family who have been secretly helping Binhai City. There are many affairs in her hands, and the two sides have been in constant communication, such as this demon clan illustrated book.

After the record was completed, Song Xing put the things in his arms, observed for a while, and urged his body to sweep towards the wall of the factory. As planned at the beginning, he needs to infiltrate to detect the danger factors and provide intelligence support for the subsequent city defense forces.

Although I encountered a new breed of youkai, this is not a reason to retreat. If Song Xing, who was known by others to come from Huaishan, was scared away by a group of rats, then he didn't have to mix up in Binhai.

At this point, the gold-swallowing rats had eaten the ore piles clean, and it was hard to imagine how their little bellies could hold so many things.

Song Xing didn't plan to clash with them head-on, and it was simple to avoid the demons with poor vision. He breathed a sigh of air in the air, and his figure flew several meters out of thin air, easily over the barbed wire fence.

Before he could hit the ground, he tapped the outer wall of a storeroom on tiptoe and flipped over and landed next to the ventilation pipe on the roof.

During the whole process, the rat demon group under the warehouse did not notice. They have a strong sense of hearing, which is also relative. Otherwise, the sound of paper airplanes streaking through the air should catch their attention.

Not waiting to fall to the ground to find out.

Song Xing hid behind the ventilation pipe and looked under the eaves, and when he was close enough to the gold-swallowing rat, he found that these monsters were very strangely shaped. Although it is gray like a normal rat demon, this gray has a metallic texture, just like a metal model.

It's probably because he ate too much metal ore, Song Xing thought to himself. He was going to leave quietly, but the gold-swallowing rat below, who had already eaten the ore, made a new move.

They gather together and stand in unison on their hind legs, their paws stretched forward. When Song Xing was wondering what they were doing, the abdomen of these guys shrank and shrank, and a lump of slag was discharged from behind them.

"Rub, it turned out to be!" Song Xing scolded in his heart. Although it didn't smell bad, this scene was really unsightly.

The gold-swallowing rats excrete all slag, which is very unusual. After pulling, the rat demons pulled their hind paws and kicked the slag together. Hundreds of them gathered together, and they were piled up in a pile.

"So, what do you do with such a pile of slag?" Song Xing thought to himself. Because just now he had already discovered that the original ore was newly piled up.

Could it be that someone feeds these gold-swallowing rats and then transports their excrement away for them?

The answer was soon revealed.

In the ventilation pipe of the opposite building, a huge black long worm slowly drilled out. This long worm has no eyes, no nose, and no mouth can even be seen. It is more than thirty meters long and pure black in color, reflecting a metallic sheen in the sun.

The long worm slowly crawled to the side of the mine pile, Song Xing was frightened, but he didn't want to leave. This is a new breed of youkai, and it puts a lot of psychological pressure on him, and he especially hates insects.

But curiosity prevailed. He wondered what the hell this long insect monster was going to do.

The black long worm coiled around the ore pile, and in Song Xing's stunned, the long worm's body actually opened up entirely, swallowing the pile of waste slag into his stomach like a digging bucket.

Then the body shuts down and slowly swims away. It's not like a yokai at all, it's like a ...... Transporter.

The fright of this factory to Song Xing was not enough, and before he could regain his taste, the gold-swallowing rat below was another round of restlessness.

But this time it's not pooping, it's vomiting.

Hundreds of gold-swallowing rats actually spit out shiny rectangular cubes, which fell to the ground with a dull sound.

Song Xing took a closer look, isn't this a metal ingot?

Could it be that these gold-swallowing rats eat the ore just to spit out this metal ingot?

If so, what kind of bugs are transporting these metal ingots?

Thinking of this, Song Xing's back was soaked with cold sweat. Because, he found himself holding on to an exhaust pipe......