It was almost evening outside. It had been almost three to four hours since I rushed back and Yunwen was abducted. It would be a lie to say that I wasn't anxious, but in order to succeed in one fell swoop, necessary preparations and waiting were necessary. As the saying goes, "sharpening the knife does not delay the chopping of wood."

While waiting for Bai Lu to boil the medicine and resting, I also looked at the map that Yunwen left behind. It was a very detailed map with the names of various areas marked on it. In addition, Yunwen also marked some information on the map that I had not noticed, such as the predicted location of the black market opened by the hyena people between the mountain roads, that is, where it would be located if we did not go to the other end through the underground river.

I took a look at what she wrote. About two or three kilometers northwest of the castle area, you can see the fault. Under the cliff of the fault is the exit of the underground river cave, which is also the entrance to the black market, near the floating bridge.

Since I often went out to look for medicine and food, I would ride my Sanfu bike and run around, so I knew the terrain around this area very well. If it was about two or three kilometers northwest as Yunwen said, I did have an impression that there was a high mountain in that area. The mountain road was rugged and steep, and it was not easy to climb, but I could roughly hear the valley breeze blowing on the branches of the trees on the top of the mountain, so I knew that if I could go to the top of the mountain, I would definitely see a valley.

Therefore, I was able to match the location. Since I was afraid of falling off Sanfu at that time, I did not let Sanfu carry me up the hillside. I just had such an impression. Now I roughly know where I am, and I won't be too confused and think that I have gone to some other worldly place, and have unnecessary sense of unknown and fear.

"Brother Zhou Bo, do you have any plans in mind? We won't have to fight when we go there, right? I think this is a bad idea. After all, they are not ghosts on a pirate ship. They won't use old muskets from a hundred years ago to scare people. They all have cold weapons, and they all look brave and good at fighting. They have a certain proficiency in weapons. And that strange black horse knight, if he comes out, we may not be able to survive. So I want to ask you, what do you think?" Bai Lu asked.

"Here is my plan. We will go and exchange lotus leaf coins instead of handicrafts, and then try to bribe the guards to let us in for a while. If we can, we will go directly inside and try to look for people. You said before that you haven't been up the hillside, which means there is a checkpoint at the foot of the mountain. If we go in there, the chances of finding them will be higher. If the guards there don't buy it, we can either find a way to sneak in, or we can only kill them and take risks. Otherwise, we can forget about rescuing them." I said.

Bai Lu thought about it, nodded, and said, "Well, that's very thoughtful. We should use courtesy before force."

"But if we force our way in, just like you said, it will definitely cause an uproar. We will be walking into a tiger's den and it will be very dangerous. You should be mentally prepared," I said.

"Alas, I've thought a lot these days, and I feel that it's because I complained too much about Yingchun and didn't let her come back. I still owe her an apology. After all, we are sisters, and I shouldn't care too much about it. So even if it's a sheep walking into a tiger's mouth, I have to go. As the saying goes, you can't get a tiger cub without risking it. Just do it. From now on, I will listen to you, brother Zhou Bo." Bai Lu said.

"Stop, that's what you said, but have you ever listened to me in an emergency situation involving life and death?" I shook my head.

While chatting, I suddenly took a picture of some peculiar traces in the cave. I squatted down to take a look and found that they were horse hoof prints. I measured the hoof prints and found that the width was wider than the width of my palm, probably about twelve or thirteen centimeters, and the length was less than two knuckles of my palm, probably about fourteen or fifteen centimeters. The size of the foot is generally proportional to the body size, so this horse is definitely not small.

I remember Bai Lu said that the black horse was a tall horse, so the breed would not be a weird breed like the so-called big-footed dwarf horse. From this, I infer that this horse's shoulder height is definitely a big one. I have measured Sanfu's, and it is only about two circles bigger than this one, so it can be inferred that the other party's physique should be a tall breed of horse, at least more than two meters in shoulder height.

At this time, I stood up and raised my hand to try to touch the ceiling of the cave. My arm span is about 83-84 centimeters, and the length of my hand minus my head and neck is about 35-40 centimeters, which is the height plus the difference, barely 2.2 meters. However, when I raised my palm, the gap between it and the ceiling of the cave was not that big, which means that the height of the cave ceiling is probably only more than 2.2 meters.

In addition, there are no human footprints around, which made me wonder. The shoulder height of a horse is more than two meters, so it is difficult to lift the horse's head. It must move forward with its head tucked in. But this place is deep inside the cave, so it must take a long time to walk. Why did this knight spend so much time and effort to get here?

If it's just to track down Bai Lu's whereabouts, wouldn't it be better to use the short hyena people to go into the cave to investigate? Why do we have to come here in such a miserable way?

This detail made me think a lot. I always felt that something was wrong, but I couldn’t put my finger on it.

Throughout the rest of the journey, we could see horse hoof prints everywhere, but no human footprints. This meant that the person on the horse had always been on it and had never gotten off. Given that there was only a 20-centimeter difference between the horse's shoulder height and the top of the cave, it was probably only possible for it to crawl on the horse's back. It had to crawl the entire way from outside the cave to inside the cave, such a long distance, and it had to lie down the entire time. I wonder if that guy's spine and lumbar spine were okay.

There were some scraped-off layers of soil on the wall, which were quite neat and obvious to be left by cold weapons. Judging from the shape and the distance from the horseshoe prints, the opponent should have been holding a spear, otherwise there would be no scratches on the bottom of the cave wall.

Going further, passing the bat area, and then walking further, I saw the cave entrance again. It was already dark outside, the moonlight was bright, and there was hazy fog. The floating bridge was swaying under the flowing water. I vaguely saw Yunwen waving her sleeves in light clothes and waving at me. My heart suddenly ached, thinking of the first time we came here, the two of us came here together, but now everything has changed.

Even though I knew that the enemy might be spying on us and was actively looking for us, so this trip might be more dangerous, but when I thought of Yunwen being trapped, I didn't care about those trivial concerns, so I said to Bai Lu: "No matter what monsters are ahead, they are all paper tigers. Muster up your courage, seize the time to explore the camp and look for people, and set off!"

Bai Lu followed me, and I asked her to cover her face. Then we went directly to the black market in the valley. I first took out a prepared toy to deal with the patrols. I was familiar with the place, and then went directly into the black market. Just like last night, there were still many mermaids, hyenas and the like here. I took Bai Lu around and headed towards the fence at the foot of the mountain.

I saw an area blocked by an iron fence with a number of lotus leaf coins placed inside the iron fence. I thought that since it was intended to prevent others from stealing the coins, with an iron fence inside and yet they were openly placed on the rocks, there was only one possibility: that was the exchange office.

So Bai Lu and I went over, and I handed over a silver cup from my backpack, which was similar to a trophy. The hyena man took it and looked up at us deliberately, but then only gave me three lotus leaf coins. It was obvious that he must have been short of money. His behavior was abnormal. He looked up at us with surprise, and then avoided our eyes when he took the coins. He must have felt guilty and gave me less money.

The enemy retreated and I advanced, I couldn't lose, so I knocked on the iron cage hard. Many customers in the black market looked over here, and it gave me another seven lotus leaf coins.

I remember that one lotus leaf coin could buy a whole big fish, and ten big fish could be exchanged for a useless silver trophy, which was about enough.

Holding the lotus leaf coins, we first went to see the black dealer who had set up a stall selling Yingchun wood carvings. Sure enough, there were new works by Yingchun, which meant that Yingchun was still alive. But there were red spots on the latest works, like blood, and Bai Lu hurriedly said to me, "Buy it quickly, that's Yingchun's handwriting, the code she and I used to play when we were kids."

I hurriedly spent a lotus leaf coin to buy it, and Bailu took it to the place where mermaid cream was sold. There was fire there, and she deciphered the secret code on it there.