Before going down, Ku Ding returned to the room and picked up the red cover notebook. Although the book was not big, it could not be put in the pocket. Ku Ding was carrying a stick, so he simply asked Qiao Rourou to help him carry it. She was empty-handed anyway.

"Master, is this book any use?"

Qiao Rourou took the notebook, looked puzzled, and held it in her hand and looked over and over again, but she could not see any difference.

"No, I'm just a souvenir. This book still carries some memories, so keep it as a thought."

Ku Ding said this to herself, but Qiao Rourou thought it was for her. She nodded, grabbed the notebook in her left hand, and habitually grabbed Ku Ding's corner of her clothes with her right hand.

"Are you ready to go down from here? Girl."

Standing at the entrance of the hole down, Ku Ding looked down. The hole was indeed very deep. Through the expanded hole, you could see something floating on the bottom floor. The doors and windows of the room were indeed closed, but there was wind energy coming in here. There should be a large space below, and ventilation should still be preserved.

"I...I'm ready!"

Qiao Yatou bit her lower lip and grabbed the right hand of Ku Dingyi's corner, and was a little white because she was nervous.

"Follow me closely, don't be afraid."

The pot Ding lowered his body and jumped into the hole first, then turned around and half pulled Qiao Rourou and pulled it down. The entrance of the hole was enough for two people to squeeze it, and then it would be staggered.

He bent his body and patted the hole wall. He must be unable to see what the hole originally looked like, but the person who expanded the hole was a familiar person. The hole wall was dug very flat and evenly, although it was a bit rough, it might be due to the tool.

"Who dug this hole?"

The cook turned around and asked Qiao Rourou. The girl seemed a little nervous at this time and didn't know where to put her eyes.

"I...I don't know, there was already a hole at that time. The hole was not big, and only Xiaoxiao and I could go down. Xiaoxiao was anxious at the time, so I went down first. I followed Xiaoxiao. The hole has become so big now, so it must have been dug by a few of them later."

However, she remembered that she only saw three pairs of footprints when she came in. In other words, there might be only three people who came in at that time, so as she spoke, he fell into confusion in thinking for a moment.

After a while, she reached out and touched her nose, frowned and recalled.

"I'm not sure what I'm seeing now. How many people come in and go down may be my imagination. However, the hole is here, the overall framework should not change. We must go down to the basement below."

Although a little uncertain, Qiao Rourou finally had a lot of her own ideas.

The cook nodded and became more and more curious about the owner of the male footprint. If it was really as Qiao Rourou said, she and Ye Lingxiao went down first, the hole was dug out by the owner of the male footprint. If the effect of being able to dig out the hole, the other party was obviously a little capable.

Judging from the size of the footprints, Ku Ding's height should be about the same as that of the man, and it is not very troublesome to move in this hole. When he was halfway down, Qiao Rourou suddenly pulled Ku Ding.

"Master, wait, look at it."

Qiao Rourou's tone was a little surprised. But Ku Ding looked back and immediately found out where Qiao Rourou's surprise was.

Looking up from this angle, it seems that due to light problems, a new painting appeared on the ceiling of the bathroom, which should be a starry sky map of a certain area. Just like the mermaid picture, this starry sky map is also outlined vividly and very detailed. If you only control your vision in one area, for example, if you look at it with your hand, it will be like looking at the sky in a well.

"this……"

The Butcher Ding looked carefully at the starry sky map and looked at it from this position. It was more than ten meters long. He stopped staring at it, and could only see a blur. Some subtleties could not be seen clearly. He walked back a little, but found that he could not see the painting after changing the distance.

After thinking about it, he returned to his original position, took out his phone and turned on the camera function and recorded the picture. Fortunately, the photography function of the phone could be used normally.

"The painter is really a rare genius in this field. Not only does he have outstanding painting skills, he also knows how to use these visual skills, and even hides such things in it."

The chef made the record and sighed. He found that this painting was not a simple painting, nor was it for people to experience the feeling of looking at the sky in a well, but for hiding a place. If this starry sky map is real, a fixed area can be positioned based on this starry sky map.

But who left this painting? Why did it stay in this place again, and what is the purpose of staying here?

"Maybe, this hole was not for going down, but for coming up."

Qiao Rourou suddenly said something, which explained a possibility.

Perhaps at some point, someone came to this room for some reason, and left the paintings in the room and left. If this were the case, Ku Ding would naturally not be the first to discover these paintings, and Qiao Rourou should not have been before.

"Well, if you come up from below, it seems that someone has already returned here. There are only a few people who dare to come back after the fire that year. Did you deliberately leave these things and want to attract me? Or a coincidence?"

The bauding herself muttered a few words, but Qiao Rourou heard it clearly. She was stunned for a moment and suddenly understood the profound meaning of the bauding's words.

"Master, do you know that a fire occurred below? When we went down, there were a lot of ashes, walls, pillars, etc., and there were traces of burning on it, but how did you know? Did you be there at that time?"

Has this girl become smarter?

Ku Ding leaned against the cave wall and reached out to point Qiao Rourou's nose.

"This school was a hospital before. It was not difficult to find out when there was a fire in the hospital. It would be no trouble to investigate it. Besides, don't you smell some light burnt smell?"

"Is this how?"

Qiao Rourou touched her nose again. When she thought about it, they had found this information in the school library before, and seemed to no longer consider this issue.

——This girl is really easy to fool.
Chapter completed!