Director Dong looked up, stared at the ceiling for a long time, and quickly found something different.
Like the marks on the ground, the ladder, which was against the wall, also left some marks on the putty above it.
"Why is there a ladder here?"
Director Dong was very puzzled.
There's absolutely no need to put a ladder in this room.
Gu Yunyang chuckled and said, "That's because I reckon there should be a mechanism up there that leads to the roof, and then, going upstairs, we should be able to reach somewhere. The marks up there should be clearer. Shall we go up and take a look?"
Director Dong quickly sent someone to fetch a ladder, and Gu Yunyang led his men up, tracking them all the way.
"There are indeed traces. It seems that this family used this passage a lot and came and went frequently, so there are quite a few traces left behind."
Gu Yunyang led his men to a house that was already considered quite remote.
Once they got out of the house, there were no stairs, so they had to jump down.
Along this route, you also need to climb trees.
Gu Yunyang observed for a long time before finding any traces of what followed.
Those branches had clearly been cleared away to remove the marks.
Gu Yunyang had some doubts. He suspected that this was probably an internal conflict, or perhaps people were greedy and didn't know how to divide the spoils.
However, the specifics will have to be found out by Director Dong.
Finally, Gu Yunyang led Director Dong to a cave.
"There should be some clues inside this cave. Director Dong can send someone over to investigate."
Director Dong quickly found someone to open the entrance and enter the cave. After searching inside, they found many traces of human life.
There was also some household waste and the like.
In addition, there were a lot of living supplies inside, so it seems that someone is planning to live there.
Or perhaps they lived there for a while before, but haven't been back recently.
Having done his part, there was little more Gu Yunyang could do.
Director Dong arranged for Gu Yunyang to stay in the dormitory, and told him to come to Gu Yunyang if he had any further questions.
Gu Yunyang helped us find clues so quickly today, although we don't know if they're correct yet.
But Gu Yunyang's ability to help find the cave gave Director Dong more confidence.
Gu Yunyang had never been here before, but he was able to find a cave by following some clues.
Director Dong didn't think it was just a lucky guess or a random find.
However, conducting a population screening is not so easy.
That evening, Director Dong treated Gu Yunyang to Shanghai cuisine, which Gu Yunyang didn't seem to dislike.
Although he loves spicy food and can't live without it.
But he can eat non-spicy dishes, especially since Director Dong treated him to a big bowl of braised pork.
These days, serving braised pork to guests is a highly valued gesture.
Director Dong has spent a lot of money on this, but I wonder if he will be kneeling on a washboard when he gets back.
Late at night, Gu Yunyang quietly went out and wandered around the night in Shanghai, looking for the black market and secretly investigating.
Over the next few days, Director Dong and his colleagues were very busy.
On Gu Yunyang's side, nothing much happened either.
He's not a professional police officer, nor is he a local. He wouldn't be involved in professional tasks like finding information or conducting population checks.
As for those few people who looked down on Gu Yunyang, they felt like they were about to be slapped when they saw him in the past few days.
After all, that cave already speaks volumes.
On the third day, Gu Yunyang finally found a black market and planned to make contact with the other party.
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