Although Jingle Ear is a bit intelligent, able to speak, and has some experience of surviving in the wizarding world, at the end of the day, it is still just a mouse, but it can be considered a smart mouse.

The world of rats was originally very simple - eating, sleeping, playing and fighting, and had little opportunity to come into contact with the concepts of economy, finance, including money that emerged after the high development of civilization - so suddenly after being persuaded by the young public-funded students who were unconscious, full of new words and unfamiliar definitions, I suddenly felt dizzy, I didn't know where I was, and my brain was extremely atrophied. Although its brain was originally the size of an almond.

In the words of the wizarding world, Jingle Ear was magically attacked by a mysterious scripture, just like the legendary Sanzang Mage's persuasion Sutra, and the attacked person will have the negative effect of confusion and confusion.

Not to mention the rats in the trees, with mosquito coil eyes, looking dazed.

Speaking of the black stone, after falling from the tree, it was quickly picked up by Lin Guo.

"Can you tell what kind of stone it is?" the black cat lowered its head, staring at the little witch holding the black stone without blinking, and his tone was full of curiosity. The first time he had traded with rats, he was really curious to see what good things those long-tailed guys could come up with.

Although according to the luster of that stone, Zheng Qing no longer had the luxury of expecting it to be a black agate or a precious stone such as black jade and black gemstones, but if it was a black meteorite rich in rare metals, or just an ordinary obsidian, Zheng Qing felt that he could accept it.

After all, it's just a few little mice, and changing to an obsidian that can burn formations is not a loss-making deal.

Hearing Zheng Qing's question, Lin Guo replied honestly, "No." ”

"If you don't see it, I'll give it to the doctor to see," the black cat's tone was slightly impatient: "Grinding and chirping, wasting everyone's time...... We have guests waiting for us. ”

Xiao Xiao was already standing aside, and when he heard the words, he stepped forward, looked at it twice, seemed to be a little surprised, stretched out his nails and scratched the stone a few times, hung a little fine stone powder, and finally raised his head, a wry smile appeared on his face.

"I think Lin Guo just said the coal of coal. ”

Dr. Xiao raised his hand and showed the black ash on his fingertips, which stood out in the sunlight: "To be precise, this stone is not pure black, but brown and black. Coupled with its lack of luster and the obvious woody marks on the profile, we can accurately determine that it is a product between peat and bituminous coal, which is commonly known in books as lignite. ”

"A low-grade coal with a very low combustion value and a lot of dust and smoke pollution when burned. ”

"Very, very worthless...... In fact, I'm curious that there is still such a mineral in Phuket. ”

Zheng Qing didn't care about the doctor's rambling analysis, after he heard Xiao Xiao's first judgment, his face fell, and the black cat's face was blacker than the coal.

"The subject matter does not meet the wizard's requirements, the transaction is cancelled!" The black cat shook his paw at the mouse king very simply, and then shrunk from more than three meters to a foot high, turned his head and walked towards the few little mice that were still hugging each other and shivering.

These little things are still in my hand, but fortunately, I just had an extra eye and took a look at the rat's trading objects in advance.

He was sent away with a piece of lignite -- Zheng Qing, a student from a major energy province in northern China, has been exposed to this mineral since he was a child. So, he was a little more frustrated than anyone else in the room.

"Where's my black gold?!" On the tree, after the black cat disappeared, the jingle ears only reacted in the middle of the night, leaned out half-stretched, and shouted at the bottom: "Hey, you hairless monkeys! Don't trade and return my black gold! Is this going to eat black? If you don't give it to me, I'm going to report it to the school!"

The black cat, who was squatting next to a few little mice, almost laughed at the stupid mouse's words when he heard this.

"Black eats black?" he tilted his head, and his red cat's eyes flashed: "Who is black? Who eats whom? You want to be black, we don't want to! If you want that piece of lignite, go down to the tree and get it yourself!"

"The rat was right. Lin Guo bit his finger and whispered beside him: "You are a black cat, and what it gave you is a piece of black charcoal...... If you get rid of its charcoal, isn't it 'black eating black'!"

The black cat swept up a snowflake with its tail and smashed it on the little wizard, indicating that it didn't want to talk to him.

At the same time, the cats and foxes that were originally scattered around also gathered in twos and threes as the size of the black cat shrank. Poseidon, in particular, was the most active, and when the other foxes were still looking at him four or five meters away, he shook his big tail and touched Zheng Qing's side three times in one step.

Similarly, there's the Ragdoll cat. At the moment when the black cat shrunk, the little Ragdoll cat, who was originally hiding behind the forest cat, seemed to hear the sound of the starting gun, and ran to Zheng Qing's side with a small broken step.

And the clothed mouse on the tree finally failed to give up his 'black gold', and after the cats were all gathered around the black cat, he finally climbed down from the tree and asked Lin Guo for the black stone.

When returning the stone to it, Xiao Xiao suddenly asked, "What are you doing with this kind of stone?"

"What to do?" Jingle Ear was stunned by the doctor's question, hesitated for a moment, and then looked at him with a disdainful look and said, "There are many uses! Writing, ink grinding, dispensing medicine, heating, building a house, etc., these are all basic applications...... The clan's skills are superb, and it can also refine a shiny little broken stone, which can be exchanged for a lot of things from other wizards!"

It also accentuated the words 'other wizards' when it mentioned them, as if it were a great loss that these young wizards from First University did not do business with it.

Xiao Xiao was originally squatting in front of the mouse, and when he saw what it said, he simply sat cross-legged on the ground, completely ignoring the cold and dirty ground, and took out his notebook with great interest, took out a quill, and began to take notes.

"A small sparkling stone," the doctor raised his eyebrows when he heard this, and picked out a small diamond the size of a pinpoint from his pocket, and threw it to the mouse king, "Is it this kind of stone?"

Originally, he was still holding the lignite as a treasure, but after seeing the diamond that Xiao Xiao threw at it, his eyes suddenly lit up, and he stuffed the lignite into his crotch like lightning, and with his little arm forward, he scooped the diamond in his claws.

Xiao Xiao and Lin Guo, who were watching him from the side, saw the place where the rat was hiding the stone, the corners of their mouths twitched, and their faces changed in unison.

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