In order to find the gap between the sounds, I checked all the information I could find, but there was still no answer, and then I remembered a person, Yu Ping.

I took out the pamphlet he had given me, and although he repeatedly told me to burn it after reading it, I could not make up my mind, because the contents were so precious.

"Who?" said the voice on the other end of the line.

"Professor, it's me, Ye Ke. ”

There was a few seconds of silence on the phone, "You didn't burn it. Yu Ping said.

"Hmm... Be. "I didn't deny it, but how did he know I didn't burn it?

"What are you looking for me?" Yu Ping's tone was very cautious, very different from the last time he saw him.

"Professor, do you know that the Sound Gap is a monster?"

"I don't know. He replied without even thinking about it, he must know something.

I don't want to give up," you think again. ”

"I don't know, I don't know, I'll hang up if there's nothing else. ”

As soon as he finished speaking, he hung up the phone, I sat in the store with a confused face, I didn't want to say it, I didn't want to say it, I hung up the phone directly.... But his tone did sound a little strange, and he didn't care about it for the time being, so let's continue to find a way to find the whereabouts of the sound gap.

Who knew that half an hour later, Yu Ping appeared at the door of Tianbei's groceries.

"Professor?" I exclaimed, hurrying to invite him in.

"Close the door. He whispered, I didn't ask why, just closed the door.

But he still seemed very nervous, looking around the store, and took out his pocket watch that could detect yokai to inspect every corner.

"Don't worry, there are no youkai here," I said, "I don't feel any youkai." ”

Tsubaki has often been elusive lately, and every time she comes back, she is depressed, and she doesn't say anything when she asks where she has gone, so I'm alone in the store most of the time.

Yu Ping looked at me suspiciously, and exhaled reassuringly for a while, "You actually saw the phone number on the booklet." ”

“... Written on the pamphlet, of course I can see it. ”

"It was written with a special plant juice," Mr. Yu said, "and I was so negligent that I thought that no one would be able to see it after I had treated it with the potion." ”

“... Why do you write if you don't want others to see it? ”

"This number is my contact information in the underground bazaar, only a few people know," he said, "most of the notes recorded in the pamphlet for you are the notes I learned when I was trading in the underground bazaar, and this phone number is also my trading code in the bazaar, which can only be seen by those with demonic powers, and then I erased the traces with potion after I left the bazaar, but I didn't expect you to still be able to see it." ”

"Underground bazaar..."I feel like I've heard a terrible place.

"It's a place to exchange information about monsters and strange things. Yu Ping said, "At first, it was relatively formal, but later it also deteriorated, and it was even traded as a commodity." ”

"......" felt that he had heard another terrible news, Yu Ping was really not an ordinary person.

"Let's not talk about that, why did you suddenly ask about the gap in sound?" asked Yu Ping.

"Sure enough, you know. ”

"Not many people know about this kind of monster, and among these few people, a large part of them are for the purpose of capturing it," Yu Ping frowned, "Who told you about this monster?"

“... Arrest?"

"Well, because they can control their voices and are delicate and cute, many demon slayers hope to sign a contract with it, which can greatly increase the power of demon slayers. Yu Ping said, "The sound gap is unwilling to be used by humans, a few years ago, a large number of sound gaps were caught by demon exterminators, as far as I know, none of them survived." He closed his eyes and gritted his teeth, "Once the gap of sound is caught by humans, it will use its sound to penetrate itself and turn into a puddle of water and die." ”

If I wasn't shocked, it must be a fake.

"So, tell me, why do you want to find the sound gap?" Yu Ping said word by word, this is the first time I have seen him so serious.

I told Yu Ping the story of the 1510 guard, but I didn't mention that it was the old man who told me about the gap in sound.

"That's the case..."After listening, Yu Ping's voice softened, he sat on the chair, looking much more relaxed, "It turns out that the old street is going to be demolished... Then these three wishes really have to help that monster come true. He smiled for the first time he entered the room, "It's good that you didn't call me just to get a gap." ”

"Professor, you know where to find the gaps, don't you?" I said, "and I want them to help." ”

"Yes, yes," said Yu Ping, "but you may not be able to see them." ”

"Doesn't it mean that you can see them in places where there are beautiful sounds?" If Yu Ping can't find them, I don't know who can help me find the sound gap.

"They are very picky about sounds, and very few sounds will make them willing to appear, not to mention that the human intrusion has been so serious in recent years, and the sound gap has become more and more rare," Yu Ping took out his glasses from his bag, "But there is a place, there will definitely be a sound gap, if you want to find them, set off with me now, just in time." ”

A few hours later, Yu Ping and I were sitting on a train to the distant city of K.

"That..."I looked at the people around me with large bags of mountaineering equipment, compared with me and Yu Ping, who only brought a small bag, I always felt that this scene was familiar, "Professor, are we going to climb the mountain..."

"No, we're looking for the gap. He said with great certainty, "It will probably be midnight when you get out of the car, so you can sleep for a while." ”

"Tell me how to find them," I said, "and you don't have to come with me on your way back." ”

"You think that's what you want to see?" Yu Ping said with a smile, "I've only heard about them for so many years, and I've never seen them, and this is just an opportunity, and if I'm with you, the chance of the sound gap appearing is also greater." ”

Monster maniacs are really not in vain, otherwise who would sit with me for more than ten hours when they are old, just to find a monster that may not be found?

The night before, because I had met a furry encounter, I still hadn't closed my eyes, so I sat on the hard seat, looked at the scenery outside the train window, and quickly fell asleep.

When I woke up again, the train was still moving forward, and it was already dark outside the window.

"You're so good at sleeping. Yu Ping whispered, I glanced at the carriage, most of the passengers were asleep, "It's always been in one position, and my neck doesn't hurt." ”

"It hurts," I turned my stiff neck slightly, "isn't it almost there?"

"Two or three hours to go. Yu Ping said, his face full of irrepressible excitement, "Soon, you will be able to reach the favorite place of the sound gap." ”

"Does it have a favorite place?" I looked at Yu Ping, who looked like a child in front of me, and couldn't help laughing, "Is there a natural sound there?" ”

"It can be compared like this," Yu Ping's eyes looked out the window, his eyes flashing with excitement," The end of this train is a high mountain where climbers gather all year round, the temperature difference between morning and evening is very large, every night is as cold as winter, there is a plant called Senecio on the slope of the mountain, every night when the temperature drops below zero, the slope where Senecio is located becomes an ice and snow garden, crystal icicles will spread all over the hillside in just a few hours, at this time Senecio will put their leaves together to protect themselves from being frozen into ice cubes by the long cold night, and when it is close to the morning, the sun returns to the earth, and Senecio will restretch their leaves。 ”

"Senecio... What does it have to do with the gap in harmony?"

"Such a scene will be staged every day and every night, and when Qianliguang is bathed in the sun again, the icicles at night will gradually melt," Yu Ping still looked out the window, his eyes full of awe, "and in just a few minutes, if you listen carefully, you can hear the sound of Qianliguang blooming, and legend has it that this sound is like a soft whisper from the ice, the closest voice to God in the world." And the gap of sound will appear at this moment, using his own murmur to respond to the whispered chant of Senliguang's life. ”