On the other hand, the four of them, who didn't know anything about these things, soon came to the side of the mountain wall on the east side of the valley, and looked at the steep mountain wall and the green plants above the mountain wall.

Sitting on the body of the flying elf, he flew up the mountain. To be honest, flying in this valley and flying in the sky are really two different feelings. High in the air, the temperature was extremely low, and when I was flying, I felt that the cold wind was constantly hitting my face like a knife. And now, this kind of flying at low altitude, with a gentle breeze on the face, is like a mother's hand touching the baby's face, and it feels really comfortable.

Soon, the four of them came to the top of the mountain wall. Jumping down from the bodies of various flying elves, retracting the elves, the four of them headed southwest. A day later, Xiaojing and the four of them came to Yantie City, as an important mineral city, Yantie City is still the color of earthy yellow, and the coverage rate of ground vegetation is not high, it is a very rocky style city.

Because they had already been here once, the four of them had no interest in hanging out. When they came to the elf center to put down their things, the group of four people headed towards the gym. To tell the truth, the luck of Xiao Jing's four this time can be said to be quite bad, because the staff of the gym told Xiao Jing that Lady was not in Yantie City, but went to Shuimai City.

Hearing the words of the gym staff, Xiao Jing was speechless for a while, you must know that in the animation, when Xiao Zhi challenged the Water Vein Gym, Lady was there. And now, Ash's route has been completely disrupted by Xiao Jing, and even the order of the gym challenge has been completely messed up, but what happened in the original animation still happened, and Xiao Jing had to sigh at the strength of the plot.

Just as Xiaojing and the four of them were about to return to the elf center, a person dressed as a miner ran over from the south. As soon as he came to the door of the gym, the miner first put his hand on his lap and quickly gasped for a few breaths, and then gasped and said intermittently: "Huhu, quickly inform the owner of the gym, Mr. Huangtai, Huhu, southern, huhu, mine, huhu, there is a strange noise." Whew, and then, a large swarm of supersonic bats flew out in pairs. Huhu, our foreman said that something might be going on inside the mine, Huhu, let me hurry up and report to you. ”

"I know, I'll report to Mr. Ryota immediately", the staff said, "However, Mr. Ryota is not in Iwatie City right now, and it may take some time for him to come back, so before you do it again, please withdraw the personnel first, and be sure to ensure the safety of the personnel first." ”

"Since that's the case, then I'll take a look first", Xiaojing said calmly.

"You? What kind of mess is a child making trouble", the worker looked at Xiaojing's small size and said directly and speechlessly.

"He's not an ordinary child," the staff hurriedly said, "He's a reserve champion recognized by the league, and he's very strong, and he definitely has the strength to handle things in the mine." ”

After saying this, the staff member turned to Xiao Jing and said, "Since you are interested in going, then I wish you a successful start, what do you need to help you Just say, we will definitely enter and we can cooperate with you." ”

"We don't need much, just let him be a guide for us," Xiaojing said with a smile.

Although because of Xiaojing's age, this worker is still full of distrust of Xiaojing. But the Rock Railway Pavilion was the department in charge of the ore vein after all, and the worker still followed Xiaojing's instructions and began to act. On the way, after chatting, Xiaojing learned that this worker's name is Yuantai, and he has been working in the rock iron pit for seven or eight years, so it can be said that he is very familiar with every mine in the pit. This made Xiaojing secretly glad that he had chosen a suitable guide.

When they came to the entrance of the rock iron charcoal pit, the workers had already withdrawn. is looking anxiously at the entrance of the cave. As for the reason, Xiao Jing has already known from the chat just now, the income of these miners is very related to the working hours and the amount of ore mined. Now, everyone is withdrawing, and it is a waste of time for these miners.

After hearing about Xiaojing's intention, the miners hurriedly dispersed, leaving a passage to enter. Then, the four of Xiaojing and Genta entered the pit together. To be honest, the complexity of the mine tunnel is no less than the secret passage under the elf center, and even in this mine tunnel, it seems that it is easier to get lost because of the facilities not as good as the secret passage.

Soon, under the leadership of Genta, the four of Xiaojing came to the place where there was a strange noise, and then the supersonic bats flew out in pairs. This place looks very ordinary, and it doesn't seem to be much different from other places, except that there is more bat droppings on the ground, and it is obvious that this is where supersonic bats usually live.

"It seems that this is the place where supersonic bats usually live," Shima said, looking at the bat droppings on the ground.

"That's right, this area is indeed where the supersonic bats usually live, because there are so many supersonic bats that we don't usually dare to come here, so we don't know much about this area," said Genta.

"Well, it seems that the noise alarmed the supersonic bats, and then the supersonic bats flew away en masse," Shima said, nodding.

"Is that so?" , Xiao Jing said suspiciously: "What kind of sound can make the supersonic bats scared and not come back until now, and all the supersonic bats are scared away, there will not be even a bold supersonic bat in a group." ”

"This ......", Shima didn't know what to say all of a sudden, after all, it was really very unreasonable, no matter what kind of sound it was, it shouldn't scare all the elves away, after all, it should be the elves with stronger curiosity.

"We could hear it, but it wasn't really loud, at least we didn't feel scared when we heard it," Genta said, "If it weren't for the supersonic bats flying away, we wouldn't have been afraid." ”

"Is that so", Xiao Jing said, "Then I have a guess, perhaps, the purpose of that sound is to drive away the supersonic bat." The sonic bat is a kind of elf that uses ultrasonic echolocation to send a frightening message to the sonic bat, such as the cave is about to collapse, there are some natural predators, etc., so that the sonic bat can leave. And if that's the case, then that sound should be a by-product of the ultrasonic emitting device, and the ultrasonic waves that really work are inaudible to humans, so the miners didn't hear much. ”