I hold the box in both hands and my left hand on top; Put your right hand down, and then push in the opposite direction. Sure enough, it didn't take long for it to open. At this time, Lola gathered the light of the flashlight and focused it on the box......

Suddenly, we saw that there was a bouquet of flowers inside, and there was a white envelope underneath the flowers. "What is this?" I took out the flowers first and put them on the chair next to me. Then he took out the envelope, which was a little yellowed at the corners.

"To whom is this letter for?" I couldn't help but hold it up in front of my eyes and take a closer look. But there is no signature on either the front or the back. "Strange, there is neither the recipient nor the sender's name, that is, this is a letter that has not been sent?"

I couldn't help muttering and turned my face to Teacher Xia Fan's side. "Teacher, can you take it apart and take a look?" Xia Fan hesitated for a while, but finally nodded and agreed. "Anyway, grandpa is gone. Besides, faith is worthless if it is not read. ”

I opened the envelope, carefully took out the letterhead, and unfolded it on the table in front of me. The light of Lola's flashlight followed me, illuminating the words on it. In an instant, none of us were nervous. "Observatory, underground warehouse, that thing, take ......"

Most of the handwriting has been corroded by age, and these are the only ones that can be recognized. "Get out of the way, get out of the way......" At this time, Xia Fan went to the lower floor to bring up the documents he found before. The height of all those documents combined completely covered the teacher's face and shoulders. Then she gently pushed Lola and me away and placed them together on the table.

"I think the clue to the thing Grandpa said might be in this—" So, we began to spread out all the papers one by one again—and we made sure that the useless ones were put on the chairs......

Even if three people are looking for it together, it takes quite a while. And this is already the second time...... If you can find any clues, you should have noticed them in the first search. "Ugh." I can't help but feel a little frustrated when I think about this.

"What's wrong?" At this time, Lola suddenly reached out and patted me on the shoulder, with an excited expression. "Did you find it?" She shook her head, then handed me something like a drawing. Then, he turned the notebook towards me.

"There's something on it, I can't read it. Chihiro, can you read it? ”

After reading Lola's words, I couldn't help but hold up the drawings in front of my eyes and look at them for a long time with the light from the flashlight. "No, I don't understand it at all!" Instantly, I sat down in my chair with some depression. Let your arms hang down naturally......

"Teacher, look at this—"

With an unconvinced expression, Lola ran to Teacher Xia Fan again and handed her the drawings. "What?" Xia Fan held the drawing in front of him, and with the light of the flashlight, he looked at it carefully again and again. At best, you can only see a rectangular pattern like a pivot drawn in the middle, and the edges are so worn that you can barely see anything. "If you had a backup, you would be able to figure out what it was."

She said with a look of loss on her face.

"Look, this drawing is exactly the same as the one just now!" Suddenly, I shouted excitedly behind the two of them. "No, there's really a backup?!" Hearing the voice, the two of them were startled at first, and then they both ran over in an instant. Lola turned the flashlight to its brightest and let it fall on the drawing I was holding.

Xia Fan was so surprised that the expression on his face disappeared, and he looked at the drawing blankly, forgetting to even blink an eye. "There really is! In this case, you will be able to find the exact location, right? I asked, turning my face to the teacher.

I was so excited that I even changed my voice. Lola also showed a similar expression to me, her eyes fixed on the drawings in my hand, shining. At this time, Xia Fan's expression suddenly became very serious. "Then, let's go to the warehouse that grandpa said!"

Facing us proposed.

"Now, but it's the middle of the night?" I reminded her with a wry smile. "I can't see anything outside now." As soon as he finished speaking, the moon was also blocked by clouds drifting from the southwest. Now even the few moonlights that could be relied on dimmed.

"Forget it today, right?"

I got up from my chair and proposed. "Anyway, as long as you know the location, it won't run away." Xia Fan's expression seemed to be a little hesitant to say something, and finally sighed and accepted my statement.

"That's it, let's go back today, right?"

As soon as I finished speaking, Lola pulled her sleeve. "What's wrong?" She looked at me and shook her head. I don't seem to want to go back like that...... Then he stretched out his hand and pointed out the window. I went to the window and looked in the direction she was pointing.

I found that on the trestle in the distance, some faint light was constantly emitting around. Like ripples created by the water surface being stirred...... "Why?" Suddenly, I muttered in surprise. That must be the light emitted by a flashlight or something, right? ”

Although from here, you can't even see the water clearly, let alone the trestle. However, I thought it was the light from the flashlight. At this moment, the light suddenly flickered and slowly moved in the direction of the window.

"Hey! Chihiro! ”

Finally, it stopped in my face. It was so glaring that I had to block it with my hands. At this time, I heard someone who seemed to be calling my name. The sound was undoubtedly coming from the other side of the trestle. And to us, the sound is very familiar. "Izumi?"

"Eighty percent of it is her." Teacher Xia Fan said next to me. Then he waved his hand in the direction where the trestle was. "Look?" The other party quickly raised his hand and waved. "I'll just say I can't be wrong!" Suddenly, with a childish expression, she turned her face to me with some smugness.

"Why are you here?"

After picking up Izumi with a boat, I asked her as I walked through the hallway. "It's not because you didn't come back until dark, so I'm here to find you." She seemed a little angry. But now the hallway is so dark that I can't even see my feet, let alone my face.

"I'm sorry, but I really didn't mean not to go back...... "I was just about to explain, but she drowned it out in her voice. Where is this? She asked me as she looked around curiously. Observatory. ”

"I know it's the observatory, and I've seen it from the outside when I first came—" she said in a tone of some irritation. "What I want to know is, why are you and the teacher staying here." She stopped, took a few steps forward, and walked around to me to ask. "Sure enough, is it related to the text message you received?"

I nodded, and told her everything that had happened today. “...... That's right. After listening, she muttered thoughtfully, and followed me into the house. Yo! I'm coming. He greeted Lola as he passed by.

"Teacher—" Then, her face turned to Xia Fan's side, and her expression became serious. "Are you really going to go to that underground warehouse right now?" "Of course I want to go!" Xia Fan nodded without hesitation and said. "That's right, I brought a device that can see things clearly at night."

As she spoke, she fumbled in the pocket on the outside of her clothes for a while, then pulled out three small night vision devices and handed them to us. "When I was passing through the shopping street, the owner of the equipment store gave it to me."

"Oh! If you have this, you're fine! "Instantly, the teacher's emotions rose again, and he grabbed my hand and shook it constantly." Right? Right! Let's go! Then he urged me to hurry up.

"Teacher...... Got it, I got it, don't pull me! ”

As I walked through the hallway, I was a little embarrassed. It didn't take long for Lola and Izumi to follow. Let's go downstairs together and go outside the observatory. Beneath your feet is a large lawn with no edge in sight. We were exploring the surroundings with the drawings.

The outer walls of the observatory are covered with moss, creepers, and some unnamed insects that nest here. "How long has it been around, this observatory?" While thinking about this question, which no one could answer, he unfolded the drawing in his hand again.

Then, I slowly crouched down and dug up the dirt at my feet and near the exterior wall. "It's here! I found it! "In an instant, everyone gathered in this direction. It didn't take long for them to dig down together before they saw the entrance that had been covered in mud......

"Now the question is, how do we get in?" I asked, staring at the entrance. It also has a door above it, which is made of wood. "Just destroy it, right?" Izumi said disdainfully. "That being said, we don't have the means to break it now, do we?"

At this point, I couldn't help but feel a little frustrated.

"Wouldn't it be nice to make one?" Izumi walked over and patted me on the shoulder disapprovingly. "It's just wood, not iron. I think it should be destructible. "Instantly, Izumi, who passed by me and was about to go around to the other side, turned around and told me......

"Then, I'll help you!"

With that, I chased after me......