Tang Ming also followed: "at that time, the boy jumped out of the window and ran. What do you think is wrong?"

"Compared with the strange sound just heard, do you think there is a strange smell here?"

"It smells like shit. Maybe the toilet hasn't been flushed clean."

Ye Fei thought it was not the case. If it was for such a reason, he would be stupid to go back and forth. Although the rental house is small, it is divided into two floors. Ye Fei suddenly thought of something and then looked around the wall in front of him.

Because it is an old house, a small balcony is designed on the second floor, which is almost a standard structure. Tang Ming never understood what ye Fei was busy looking for, but he still helped to find it without saying a word.

Sure enough, ye Fei's attention moved to a wall covered by bookshelves.

This is just a temporary rental room. The two killers don't seem to have any leisure and leisure. They hide here to read, so the bookshelf is placed here, which is somewhat abrupt.

"There are no books on the shelf, let alone any other items. It seems that it has been deliberately placed in this position. If it is not for reading, it can only cover the wall behind it."

Ye Fei and Tang Ming moved the bookshelf from left to right, and the wall covered by it exposed half of the area. Soon Ye Fei found that behind the bookshelf was not the whole wall, but a small door.

Tang Ming's eyes lit up and said, "OK, ye Fei, maybe you really found something."

Close to the door, the smell just smelled became stronger. Ye Fei tried to hold the door handle and rotate it, probably because there was a bookshelf blocking it, so the door was not locked at all.

When they opened the door, they found that the balcony was deliberately made into a closed structure from the original open structure. The three directions that had not been blocked had been covered by a piece of black tarpaulin.

The more you go forward, the more obvious the short sound of knocking on the metal, and the more pungent the bad smell. In this small space, ye Fei and Tang Ming saw a cylindrical object covered with a black cloth.

"What?"

Ye Fei reached out to uncover the black cloth and was surprised to find that it was actually a pigeon cage, and at this time three pigeons were locked in it. The strange impact sound just now was made by pigeons pecking at the cage from time to time. A thick layer of feces has accumulated at the bottom of the cage because no one has cleaned it for a long time.

"These two killers still have mind like pets?" Tang Ming is good at fanning the air in front of his nose.

Ye Fei said very seriously, "among the killers I know, only one likes raising pigeons."

In a word, the three pigeons were definitely not used as pets, and when they saw that the balcony was so hidden, the two killers obviously didn't want to be known that there were pigeons here.

"If it's not for being a pet, there's only one possibility. These are carrier pigeons used to deliver messages." Tang Ming hit the mark and said what ye Fei was doubting.

If you just want to buy it back for food, you don't have to spend a lot of money to open up such a hidden loft on the balcony. Ye Fei also felt that these pigeons should be of great use, so they would be carefully hidden.

Tang Ming asked Ye Fei, "what are you going to do next? Maybe the killers communicate with each other through these pigeons."

"But the killer who fell to death said that they almost don't contact each other, and all their actions have the company head to make remote telephone contact. They haven't mentioned the use of carrier pigeons at all, and it's too inefficient to deliver messages in this way, and there are uncertain risks."

"I don't think it has anything to do with their contact. Maybe the two killers who live here need to use pigeons to achieve some purpose of transmitting messages through them."

In order to verify this guess, ye Fei immediately contacted Liu Liwen by telephone.

Tell them about the carrier pigeon found here. The killer who was successfully captured by them should know what's going on.

Liu Liwen's reaction was also very rapid. Within ten minutes, he called back: "the killer didn't know about the pigeon. He didn't stay with another escaped accomplice all the time. In fact, he went to the rental house today to get the ticket."

After getting the news, ye Fei thought that the crux of everything was the man who escaped. That guy seems to be different from other fugitives. He is the only one who knows the purpose of those pigeons.

Tang Ming stared at the three pigeons and said to Ye Fei, "since they are used to deliver messages, can't we find out who the recipient is through them?"

Logically speaking, it is true, but ye Fei said, "once these pigeons are released, how can we track them? At that time, not all of them can be found?"

Tang Ming seems to have a good way to do this. He asks Ye Fei to wait here, while he runs to the downstairs to find something in his car. Before long, he returned to Ye Fei with empty hands, but there was a proud expression on his face.

"Why did you come back empty handed?"

"Look!"

Tang Ming spread out his palm and saw a square black chip in the palm, about the size of a grain of rice. Ye Fei knows this kind of thing is a tracker without guessing, but what surprised him was why Tang Ming had this thing.

"Where did you get this?"

Tang Ming's mouth was so high that he said proudly, "I've always kept pace with the times. There are many guys eating in my hand. Now it's a high-tech world. Lao ye, you're really going to be eliminated."

Ye Fei has had such a nickname for no reason since he escaped from his hands by the killer. Tang Ming uses the name Lao ye to tease Ye Fei that he is old and can't even deal with a young generation now.

"If you have such a good thing, don't take it out early!"

"This is not the time when it didn't come in handy before."

Tang Ming grabbed a pigeon and carefully fixed the tracker on its leg, so that they could know where the pigeon would fly without time and effort.

If their guess is correct, the recipient will surface.

"Take one of them to test the water and see if it works. Let's take the other two back first."

Ye Fei looked at the time and said, "well, it's almost time to go to the fishing village to take a boat. She's already sent the positioning to younger martial sister before. According to the time, she should be almost here now."

Tang Ming was a little surprised: "how did you find Yimeng? We can handle this little thing by ourselves."