The earliest date for Wu Miao's encounter with disaster is 15 days later. We have already stayed at this point for 3 days, that is to say, it is likely that we will not stay until that day.

  I asked Wu Yu what to do about it, and he said: What if we help the police catch him before that?

  How to catch?

  According to Wu Yu's memory, before that, the man had already killed two girls and was extremely cruel. The police have launched a joint investigation. According to the news I searched online, this is indeed true.

  Two girls lived in Kaifu District, both were in their early twenties and had a pretty appearance. The level of work they engaged in was not high. Although the body photos of the two cases have not been made public, based on police reports and various rumors, the death conditions are very similar, and they suffered severe abuse before death, which could only be done by one person.

  "When is the next victim?" I asked.

  Wu Yu answered: "July 22nd, that is tomorrow night, also in Kaifu District. Not far away."

  I marvel at the audacity of this murderer, but thinking back to the Gansu Yinchuan serial murder case in history, wasn't it the same? Even with the police laying out a dragnet, he still committed crimes continuously in one area and successfully escaped. I also understand that even if Wu Yu predicted the next time and place the person would strike, he couldn't seek help from the police. Firstly, it's fundamentally impossible to explain to the police, and who knows, maybe he'd be treated as a suspect; secondly, he's afraid of startling the snake by hitting the grass.

  "We need to find a way to gather evidence of that person's crime," I said. Wu Yu nodded in agreement.

  "If we can catch him on the spot, no one else will be harmed." Wu Yu said, "Wu Miao will also be safe and sound."

  I looked at him quietly, with a cigarette slowly burning between his fingers. But I knew he had made up his mind to catch someone with his own hands, and had steeled himself for it.

  The next victim was a university student named Xu Jingmiao, who came from a poor family and worked part-time at a 24-hour fast food restaurant. She was killed on her way home from work one night around 1 or 2 am when she was walking alone.

  On the evening of July 21st, I went to the restaurant where Ou Yu worked with her. From a distance, I saw her. Indeed, as Ou Yu said, she was the kind of girl that "that person" liked - young, lively and clean.

  We walked a long way back home with Xu Jingmiao, and since we were a couple, it didn't attract Xu Jingmiao's attention or the attention of passersby.

  The next day, we walked through this route again. Wu Yu noted down every location with surveillance cameras and 24-hour shops. When we returned to the Wu's house, he drew a few lines on the map and finally marked out a section of road saying: "He can only make his move here."

  I said: "Hmmm... because there are no cameras here?"

  "Not only that," replied Wu, "the location is relatively secluded, and even if there's a commotion, it's not easy to be discovered. Moreover, if he takes action here, he can easily avoid the cameras, as long as he brings the victim just a short distance away, they can walk out to the parking area."

  Wu drew some routes and arrows on the map, but whenever I see something involving spatial distribution, I get a bit dizzy. I prefer more intuitive things. However, I understand that he has strong logical abilities, stacking various possibilities together, excluding the impossible ones, and finally deducing the most likely place where the other party would make their move.

  I nodded: "So to speak, that person's brain is quite clever and very meticulous."

  "Exactly," replied Wu Xiu. He pointed to the road on the map that he had marked: "I'll be waiting there tonight."