I am the spirit teacher

"The guest room has disposable toiletries and a bathroom. You can wash up there. Also, go to bed early. The college is expected to be temporarily suspended tomorrow."

"School is suspended?" Zheng Yuexin was stunned, "Is it because of those bats?"

Lin Xi had already changed his shoes. He was typing something quickly on his mobile phone and answered Zheng Yuexin's question:

"Yes, not entirely. After all, the year of natural disaster may have arrived earlier. The wandering elves in the city have now begun to attack humans. In addition, there are swarms of supersonic bats surrounding the city tonight..."

"Why, why earlier?" Zheng Yuexin's face turned very pale in an instant.

Lin Xi explained: "No one can tell for sure. People's predictions of natural disaster years are calculated based on the actual time patterns, but the patterns may change slightly at any time. No one can say for sure... Well, Okay, student Yue Xin, it’s already very late today, take a shower and rest quickly.”

Lin Xi was talking about his speculation, but a text message from Hua Qingliu rang on his phone.

'Mr. Lin, due to the strange whereabouts of the wild elves, Ancheng is currently under full martial law. Except for the traffic within the city, all other traffic roads that can leave the city are blocked. You can only enter but not leave. Please pay attention to your safety. '

Anseong has been closed down?

Lin Xi looked at the message sent on his mobile phone and was slightly distracted. This meant that Ancheng had discovered a swarm of supersonic bats appearing around the city.

Coupled with the uncertain risk of wandering elves within the city, the current Ancheng can really be described as internal and external troubles.

"Disaster is coming."

……

On the other hand, Zheng Yuexin listened to Lin Xi's words, washed briefly and then went to rest.

The room was dark and quiet. Zheng Yuexin covered her head with a quilt and held walking grass tightly in her arms.

The walking grass in his arms felt his trainer trembling, so he gently stroked Zheng Yuexin's head and back with the leaves on his head, in order to give his miserable trainer a sense of security...

On the other side, Lin Xi was still reading information about elves such as Supersonic Bats.

Although with Lin Xi's level of knowledge, common little elves like supersonic bats have been thoroughly studied, and there is no problem in fighting alone, the problem now is that a group of supersonic bats attacks human cities. Once the weak creatures unite, As one force, the power cannot be ignored.

If they want to fundamentally dismantle this force, Lin Xi and the people from the City Security Bureau can only think of other countermeasures...

"Most sonic bats live in pitch-black caves where they can't see their fingers, so their eyesight is severely degraded. They basically rely on ultrasound when flying and hunting. Therefore, in addition to bat elves, there is also a category of sonic elves. Ultrasonic waves...sonic waves..."

Lin Xi suddenly thought of something.

He took out his notebook and wrote on it:

The elves of the ultrasonic bat family have no eyes, so they have no vision. Their flight and hunting rely on the reflection of ultrasonic waves, which they use to detect the surrounding environment instead of their eyes.If you want to deal with the supersonic bats, you must use firepower and the suppression of powerful elves. You only need to emit another sound wave inside the city that is enough to destroy the sound waves emitted by the supersonic bats, so as to disrupt the supersonic bats' influence on the surrounding environment. judgment, thereby achieving the effect of disintegrating the whole.The threat to the city will be greatly reduced by the fragmented supersonic bat swarm.

After writing this, Lin Xi perfected and simulated his idea on his notebook. After confirming that there were no problems and that it was effective, he called the Ancheng Public Security Bureau...

Don't ask Lin Xi why he didn't call someone who is professional in this area, he just doesn't know the phone number!

However, the saying that if you have nothing to do, go to the police is really impressive.

"Hello, Public Security Bureau? I am the instructor of Qiyue Elf Academy, Lin Xi..."

Anjo, Wild Elf Prevention and Control Bureau.

A man in a yellow uniform who looked like he had a good meal was standing in front of his seat, seriously and seriously analyzing the problem of wild supersonic bats surrounding the city.

He looked around and said, "You are all old employees. I believe you all have your own ideas on how to deal with this situation. Let's talk about it."

"Captain, there should be nothing to discuss. That group of supersonic bats was obviously affected by the natural disaster year and was preparing to attack the city. This situation must be suppressed with firepower." A young prevention and control bureau employee He stood up and said.

"No, the situation now is not the same as before." The captain shook his head and explained:

"Because the supersonic bats gathered very suddenly, and there are already stray elves attacking human residents in the city, it is impossible to gather enough firepower to suppress a group of elves in a short period of time."

"What about finding a powerful trainer to dispel it?" Another girl in uniform stood up and said.

The captain shook his head again: "No, it will take a long time to gather powerful trainers, and nothing may happen at that time. The risk is too great. If it can be used, it can be used, but we still need to find a way to delay time."

Everyone in the conference room fell into deep thought...

Summoning powerful trainers and suppressing and dispersing firepower are the usual methods used by their Wild Elf Prevention and Control Bureau to fight against the wild elves, but at this juncture, it seems that they have failed...

This gave all the team members a headache.

Just when they were brainstorming but couldn't find a solution, the captain's cell phone rang in his pocket.

He originally planned to hang up directly, but after seeing the number that called, he changed his mind:

"Think first, I'll go out and take a call."

He walked out of the conference room and picked up the phone in the corridor:

"Hello Bureau Liu, I'm Gong Shi."

"What? Someone has provided a way to deal with the supersonic bat swarm? Is the method reliable?"

"Instructor of Qiyue Elf Academy? This...is this really possible?"

"Okay then, send me the instructor's phone number and I'll call him."

After hanging up the phone, a text message was quickly sent to Captain Gong Shi's cell phone with a series of phone numbers written on it.

Now he was not in a hurry to go back to continue the meeting. He clicked on the string of numbers on the text message and dialed it.

The call was connected very quickly, as if someone was watching on the other side, which made Gong Shi very satisfied:

"Hello, did you say you have a solution to the swarm of supersonic bats outside?"

"Yes, this method does not consume firepower or trainer strength, it only requires the use of some technological power." Lin Xi replied, holding what he had written.

"Does the method actually work? You should know that we cannot make any mistakes in resisting the wild elves from attacking human cities." Gong Shi said in a serious tone.

Lin Xi on the other side of the phone chuckled and replied:

"Don't worry, it will definitely work..."