Zhao Qian got up early. He moved away the branches and stones blocking the entrance of the cave, walked outside the cave, looked around, and kept mumbling that something was wrong.
"Zhao Qian, what's wrong?"
Liu Yun saw that Zhao Qian was behaving strangely, so she stepped forward and asked.
"Last night, I heard something moving outside the cave, so I wanted to check to see what animal made it, but I didn't find any animal footprints." Zhao Qian looked down at the ground and answered truthfully.
"Is it possible that you have been too nervous these days and are hearing hallucinations? Qianqian and I didn't hear anything last night." Liu Yun asked.
"impossible!"
Zhao Qian shook his head with certainty and asked, "Last night, I threw your roasted pork out of the cave. Do you still remember this?"
Liu Yun nodded and said: "Remember."
Zhao Qian continued: "After I woke up, I checked around the entrance of the cave several times and found that the piece of barbecue was missing, so some unknown creature must have been here."
In the past, he would never have cared about such small details, but now he was on a desert island.
There is no danger on this desert island on the surface, but in fact it is full of mysteries. If they want to survive on the desert island, they must pay attention to every small detail.
When Liu Yun heard this, she instinctively looked at the ground around her, but she didn't see the piece of barbecue, and she frowned slightly.
"What kind of animal do you think it could be?" Liu Yun asked.
Zhao Qian shook his head and said solemnly: "I don't think it's an animal. Judging from the footprints I saw, it looks more like a human being."
"Human!"
Liu Yun was shocked and asked: "How could there be other human beings on this island? Could it be that you saw it wrong? Could it be the footprints of ape creatures?"
Zhao Qian shook his head again, "The footprints of apes are very different from those of humans. I can guarantee that these are not ape footprints, but human footprints."
While talking, Zhao Qian led Liu Yun to find a footprint.
Although this footprint is blurry, based on the rough outline analysis, it does look more like a human footprint.
In fact, when Zhao Qian came to this conclusion, he was also shocked.
If his inference is correct, there are not three of them on the desert island, but a fourth person.
In fact, Zhao Qian didn't mind having one more person, because one more person on a desert island would give them more hope of survival.
But the problem is that the other party doesn't seem to be planning to come out to meet them and has been hiding in the dark to observe them. This makes Zhao Qian always feel that the other party has ill intentions.
"Can you identify this person?"
Liu Yun was worried that Zhao Qian didn't understand what she meant, so she continued: "I mean, is the other person from this world, or is he a passenger flying with us?"
Zhao Qian thought about it and expressed his opinion, "They should be the natives of this world... If they are like us, they will most likely not avoid us, and the other party will not wear shoes."
People living in cities find it difficult to bear even finger pressure boards, let alone walking in forests and mountain roads without shoes.
Only those who have not worn shoes since childhood and have thick calluses on the soles of their feet can be fearless in forests and mountain roads.
Therefore, since the other party is not wearing shoes, there is a high probability that he is not a fellow passenger on the plane.
only……
Zhao Qian thought for a while and asked: "According to your inference, we should be in the Gendaya civilization period. Did humans appear at this time?"
The intelligent creatures of the Gendaya civilization are very different from humans in appearance. They are about two meters each, and the men have an emerald-colored third eye.
Liu Yun recalled it and said: "The oldest Australopithecus man has a history of several million years, which is older than the Gendaya civilization... Therefore, humans should have appeared during the Gendaya civilization."
"Will one intelligent creature allow another intelligent creature to appear?" Zhao Qian asked.
The history of biological evolution is the process of new species destroying old species.
In this process, if it is not an intelligent creature, the new species that appear will just inadvertently eliminate the old species.
But if they are intelligent creatures, they will eradicate any existence that threatens them in order to survive. This is like when a country discovered a new continent and almost killed all the natives in the new continent.
Therefore, Zhao Qian does not believe that the Gendaya civilization will allow other intelligent creatures to exist.
"Maybe the IQ of human beings in this period is not high!"
"This is the only explanation."
"What are you going to do next?"
"The opponent is hiding in the dark, and we can only defend passively, so I want to install a door in the cave."
Using branches and rocks can only resist those creatures that are not intelligent. If you encounter intelligent creatures, the barriers made of branches and rocks will be of almost no use.
Therefore, he wanted to cut down wood and make a thick door that even wild boars could not destroy. Even if the other party had malicious intentions, the door would be able to protect them.
"That's a good idea."
Liu Yun immediately agreed to Zhao Qian's proposal.
Zhao Qian has to go out to look for food every day. She and Wang Qianqian are the only ones left in the cave. They are not able to deal with the slightest danger.
But installing a door makes the situation completely different. Take the encounter with wild boars as an example. As long as the door is closed, they are basically in no danger.
"Then I will start building the door from today." Zhao Qian looked at the cave and said, "I will go to the forest to find some materials later. Go and tell Wang Qianqian and don't tell anyone about the other people on the island.
Tell her."
"Don't worry, I know what to say to her."
Liu Yun understood what Zhao Qian meant and nodded.
…
After Zhao Qian decided to build a gate, he entered the forest and looked for trees of suitable size.
If it is too thick, it will not work. He only has one person, and the workload of the tree that is too thick will be too much. Similarly, if it is too thin, it will not work. The door made of too thin tree will have limited defense.
After selecting for a long time, he selected a tree that was a little thicker than an arm. Using such thick wood to build a door didn't require much work, but the door was still strong.
After selecting the trees, Zhao Qian took out his bone knife. After hesitating for a moment, he chopped down on the tree and then checked the condition of the bone knife.
No gaps!
No damage!
This strange bone found from the Tyrannosaurus Rex skeleton is far harder than Zhao Qian imagined.
"This bone knife is much easier to use than a kitchen knife that can't chop garlic. If you use that kitchen knife to chop down trees, the trees will think that the kitchen knife is touching porcelain."
After Zhao Qian finished cutting down a tree, he checked the bone knife again. There were still no gaps, and even the sharpness had not changed much.
Unconsciously, the time came to noon, and Zhao Qian also cut down more than ten trees as thick as an arm.
He tied up the trees and carried them back.
But as soon as he returned to the cave, he realized that something was wrong. Wang Qianqian had been crying, and Liu Yun was comforting her.
"What's wrong?"
Zhao Qian quickly threw down the tree he had chopped down and walked forward.
Wang Qianqian didn't answer, she just kept crying, as if she had been wronged a lot.
Finally, it was Liu Yun who answered: "Towards noon, Qianqian and I were cooking, and suddenly a savage broke into the cave..."
Savage?
Zhao Qian was shocked. He didn't expect that what he was worried about would happen so quickly. He hurriedly asked: "Where are the savages? You are crying so sadly. Did the savages do something to you?"
"That's not true. The savage just robbed our fish." Liu Yun paused and said with some embarrassment, "It's just that the savage didn't wear any clothes."