I immediately put out the torch and quietly crawled with Yunwen to an area with more grass nearby. I heard a creaking sound in the bushes, and the sound continued outside the fence. After it stopped, I looked up and saw a dark creature with its face exposed, poking its head out to look inside.

My fence is about 1.5m high. Ordinary wild animals can't jump over it, let alone stick their heads out. The only thing that can easily ignore the height of the fence is that thing. There is no need to prove this.

It looked inside, and we watched it sneaking around for a few moments, then it turned and left, as mysteriously as it had come.

"What time is it?" I asked.

"There's no way to know the exact time, but according to the ancients' calculation of time, it should be after the second watch, around the hour of Hai, which is roughly between nine and eleven in the evening," said Yunwen.

"Okay, then remember this. Around the hour of Hai, come from the three o'clock direction, stop and watch for about three minutes, and walk at a speed of about sixty steps per minute," I said.

"Oh! By the way, how do you know how many steps it has taken, and also how long it has stayed there exactly?" Yunwen asked.

"Since we crawled here, I have been counting the seconds, and using my fingers to record the number of steps it took, so I can convert it. It must have deliberately slowed down its walking speed to reduce its noise. It doesn't usually walk at this speed." I said.

After figuring this out, we went back to the house as soon as the Bigfoot walked away. I asked Yunwen to draw what she saw and heard on a stone with charcoal as a sample. When Bailu and Yingchun took over, I would be able to teach them how to record.

Since we were divided into two shifts, Yunwen and I had to keep watch for a longer period of time. It was still bearable in the early stages, but once we had some free time we would feel very sleepy. In fact, keeping watch in the first half of the night was quite tiring, because everyone had just finished eating and was tired after a day's work, and it would be a good time to lie down and take a nap, but we were on watch all night.

I yawned inadvertently, and Yunwen saw it and said, "Go lie down for a while, I'll watch over you."

"No, that won't work. How can I take advantage of you? Yawning is a physiological phenomenon and it cannot be controlled." I said quickly.

"It's not like I haven't done it before." Yunwen joked.

But these words seemed to have more than one meaning. As soon as they were spoken, we both blushed immediately, and the first thing I could think of was that night when Yunwen took the initiative to kiss me. Those soft lips and the woman's fragrance filled my nose. I can still savor it when I think of it now.

To break the awkwardness, I said, "Yeah, I was lazy many times. You can go to sleep this time. Anyway, I can do the next thing by myself."

Yunwen thought about it, smiled and nodded, and said, "Okay, I'll take a nap first, and you can wake me up when you feel too sleepy."

I nodded, thinking that she would go up to the kang to have a rest, but unexpectedly, she directly rested her head on my thighs. She didn't seem to be on guard at all. When I came to my senses, I remembered that I had been staring at her for a long time. After all, that face was really beautiful.

I took off my coat and covered her with it. She smacked her lips and her body moved slightly with her weak breathing. It seemed that she was fast asleep...

Afterwards, in order to keep myself from getting sleepy, I tried my best to think about Bigfoot. Of course, as usual, I thought about which position would be more conducive for me to hide myself through tonight's data, and use this rifle to complete the sniper mission.

After enduring for a long time, I was reluctant to let Yunwen get up. Instead, I waited until the shift was over, carried her back to the kang, and then woke up the Song sisters. Then I went to bed without thinking about anything else.

In the many days that followed, we gradually figured out Bigfoot's movements. It would occasionally come in the early morning, but most of the time it would come to check on us around 11 p.m., and would usually leave after two or three minutes of absence. According to the patterns we recorded, it would appear occasionally in the early morning within three to five days, but most of the time it would be at 11 p.m.

After discussion and speculation, we think there are two reasons. The first is that it is easy to hide in the night, and it feels that it is not easy to be noticed by me. The second is that it came after our meal, because during this time we will stay in the house and relax our vigilance. In order to avoid alerting us, it made this choice.

As to why it sometimes comes only early in the morning, we don't know for now.

However, knowing its movement trajectory, its threat is much less.

I would check the footprints it left regularly every day, usually with Yunwen, who has a good memory and can help me remember the places it stepped on the most, and the areas with the highest probability of standing. I would then let Yunwen stand in that area and hold up a branch. I remembered the height difference between myself and Bigfoot, so the branch Yunwen held up was roughly its height, and I would aim the gun at the top of the branch.

This kind of training will make my action consciousness form a certain inertia, and will help me find the right angle more quickly at the critical moment. I will not aim randomly at the critical moment, which will definitely miss the better opportunities. It will also make it easy for me to be like the treasure hunter, who missed the target with one shot and had his skull crushed to death.

Also, if I have to fight it one day, it will probably be in the dark of night, and I have no idea what the moonlight will be like that night. So such repeated practice will increase my probability of hitting the opponent even if I am blind. Therefore, training is particularly necessary, and I am training tirelessly.

I train for about an incense stick of time every day, which is to simulate aiming the gun and assuming that the trigger is pressed. The M16 has a "SAFE" button, which I will turn on to avoid accidental discharge. I will try to simulate movement shooting, positioning shooting, etc. to ensure that all situations can be predicted.

But perhaps because spring has not yet fully arrived, Bigfoot did not attack and has been on the sidelines, sometimes not coming over, but we never let our guard down.

When the spring tide rises and falls, there will be a lot of dried shells on the sea surface, which I will take back. In addition, there are some rocks on the coast, and I can find a lot of kelp on them. During this period, we can eat kelp soup. If we are lucky, there will sometimes be stranded fish, which can be regarded as gifts of food, so we will add some to the meal to supplement animal protein.

Soon there were a lot more charcoal scratches on the wall, four vertical and one horizontal, twelve more in total, which meant that another two months had passed. Time passed quickly, and apart from being busy with Bigfoot and going out to find food, nothing strange had happened during these days, and with the arrival of spring, I didn't have to think too much about food.

But I am becoming more and more confused about the situation, and as time goes on, I even suspect that we are thinking too much, and that Bigfoot basically has no other intentions, maybe just for fun.

"I've told you guys, you're just too suspicious, playing tricks all day long. It never ends. Instead of thinking about this, you might as well think about how to leave this broken island and how to wait for rescue. To be honest, every day is the same and it's boring to death. I can't live like this anymore." Song Yingchun complained while sitting on the kang.

"Zhou Bo, what my sister said makes sense. If it was going to take action, it should have done so recently. After all, it is spring, and the mate-seeking period for animals should have been over. But it hasn't taken any action yet, so maybe it's over." Song Bailu said.

"Maybe, but it's always better to be prepared," I said.

I also thought that maybe because I had helped it reposition its dislocated hand bones, it didn't do anything to us, so there was really no need to be too nervous.

"Then let's forget about it for now. Spring has already passed and we haven't celebrated the Spring Festival yet. How about we all have some fun today and have some fun?" Yunwen said.