The deceased, Dong Guo Qianru, slept on the top bunk before he died. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 infoThe top bunk is located directly on the ceiling of the dormitory.

When Jiang Mumu was checking the ceiling, she remembered that Yin Yingnan had adjusted the bed.

At that time, Yin Yingnan said that the upper bunk was noisy and asked to change to the lower bunk.

Jiang Mumu was shocked when he thought of this.

She immediately turned on her flashlight and shone it at the ceiling.

Di Qi paid careful attention to Jiang Mumu's movements below.

When he saw Jiang Mumu touch the ceiling, his face sank.

He seemed to have guessed something.

Jiang Mumu searched carefully several times and found a few black spots on the ceiling.

The black spots have a very regular circular shape.

Jiang Mumu touched it with his hand for a long time, but he didn't find a reason.

"You try the steel needle. ”

Di Qi suddenly handed Jiang Mumu a steel needle.

Jiang Mumu quickly took it and poked it up in an instant.

The steel needle is less than a millimeter in size and is slender and sharp.

In an instant, it pierced the ceiling and went straight to the next floor.

Jiang Mumu poked it and stabbed it again, and found that there seemed to be flesh on it.

"There's a problem upstairs!"

Jiang Mumu turned back to Di Qi and said.

didn't think about it, Di Qi's movements were faster than Jiang Mumu's words.

He had disappeared into the door of his dormitory.

Jiang Mumu used his mobile phone to record the process of the steel needle poking the ceiling.

And she poked every spot, and found that every spot could be pierced.

These spots are not stains, but small holes that are hard to spot.

Jiang Mumu felt that the person who made such a layout was too thoughtful, and even a little terrifying.

She fumbled around the ceiling for a long time, and noticed that the spots were densely packed at the head of the bed.

Jiang Mumu instantly figured out one of the mastermind's criminal methods.

It's just that why did the mastermind set up this link, and why?

For a while, this detail was not related to other details, and there were many and scattered clues, which could not be connected.

Jiang Mumu sat cross-legged on the top bunk for a long time until Di Qi came back.

When he returned, he had a mysterious smile on his face.

After he caught Jiang Mumu who rushed down.

At Jiang Mumu's request, the two checked the bathroom again.

It's just that this time I didn't see a warm yellow aperture on the bathroom mirror.

"Not the same person?"

Jiang Mumu questioned.

Di Qi just smiled silently.

"This baby is going to Yin Yingnan's bedroom. ”

Di Qi seemed to understand what Jiang Mumu wanted to do, and he quietly accompanied Jiang Mumu.

During this period, he sent a message to Xiang Junqing, asking him and other police officers to be on call at any time.

Xiang Junqing's reply was refusal, saying that he was the political commissar of the police station.

Everything has to be arranged by him.

But for Xiang Junqing's refusal, Di Qi didn't see it at all.

Jiang Mumu entered Yin Yingnan's bedroom, and jumped directly on the escalator to the upper bunk.

She fumbled around the ceiling at the same position as Dong Guo Qianru's bed.

Sure enough, it didn't take long for her to touch some potholes.

Jiang Mumu carefully identified them with a magnifying glass and found that these potholes were filled holes.

Jiang Mumu guessed that it turned out to be the same as the one found in Dong Guo Qianru's bedroom, which was also a black speckled hole.

Later, when I saw that Yin Yingnan couldn't live on the upper bunk, he poured it from top to bottom and filled in the hole.

Jiang Mumu thought about it, and wanted to go upstairs to the bedroom to have a look.

Di Qi didn't stop her, just accompanied her lightly.

Jiang Mumu walked upstairs to Yin Ying's male dormitory and found that the graduate students upstairs had been emptied.

Jiang Mumu asked the dormitory supervisor again, and the dormitory supervisor said that half a year ago, before Yin Yingnan died, the upstairs bedroom was empty.