Pond side.

"Keane, this isn't a hunting place!" said the mouse, cautiously poking its head out of the verdant weeds, warily surveying its surroundings, and lowering his voice, "The goldfly larvae are in the drier area on the other side. It's a bit dangerous here, and it's often infested with very scary beasts......"

"That's why I brought you here. Jia Zhengjin stood generously on the road, carefully checking the traces under his feet, "Come out! I will teach you to identify the footprints and the movement route of the prey, and find the best place to place the trap!"

"Are you kidding? All of them are hunters, and I can't beat them. The rat shook his head desperately, hiding in the grass and refusing to come out.

"It's not for you to go head-to-head," Jia Zhengjin reluctantly turned around and dragged it out of the grass, "See clearly, are there many footprints on the ground?"

"Uh-huh~" The mouse looked around absentmindedly.

"I told you to look at the ground!" Jia Zhengjin reached out and pressed its head, forcing it to look away.

"I see, I see ......," the mouse nodded.

"Can you tell what footprints are?"

The mouse shook its head.

"Forget it, let's keep it simple!" Jia Zhengjin was helpless, pointing to the largest number of footprints in it, "According to the footprints, you can probably infer the volume of living creatures passing by here." ”

"How do you deduce?" asked the mouse curiously, "what's the use of knowing?"

"Knowing its size, you can dig a trap that is big enough to hold it and prevent it from escaping!" Jia Zhengjin explained seriously, "You see, based on this footprint, it should be a creature with flippers." Then its footprints are somewhat strangely shaped, presumably lizard-like crawling creatures. ”

"Can you see that?" the mouse was curious, "Anyway, what is a lizard?"

"Don't worry so much!" Jia Zhengjin interrupted it with a wave of his hand, "Although there are other footprints, the most numerous are the footprints of this lizard, and the marks left by the tail sweeping the ground. Based on these marks, it can be inferred that the target is large enough to feed your family for more than a week. ”

The mouse blinked and stared at Jia Zhengjin seriously: "But even if you want to catch it, it's not here?"

"Do you know why I picked the edge of the pond?"

The rat shook his head vigorously.

"Do you drink water?"

"When you are thirsty, drink it. The mouse replied.

"Yes, drink water when you're thirsty, and the pond is full of creatures and a place for big predators. Jia Zhengjin pointed to the footprints on the road and said, "Therefore, the pond is equivalent to a natural canteen, attracting all kinds of creatures to come." Creatures have memories and tend to like to follow familiar paths. For example, if you hunt, you also go in a direction that you are familiar with, right?"

"Yes, yes!"

"The road is a walk. Jia Zhengjin pointed to the obvious path under his feet, "And this is the passage where several creatures often go back and forth." ”

"Wow~ You're so smart!" the mouse's eyes lit up, "It's an alien." ”

"......" Jia Zhengjin doesn't know what to say, it's all common sense.

"And then, and then?" asked the mouse eagerly.

Although speechless, Jia Zhengjin patiently explained: "This is the best place to dig traps because the soil is soft and there are no hard rock layers. What we have to do is dig a big enough hole as soon as possible and lay it out a little. You're going to dig holes, right?"

"Yes!" said the rat, raising its paw excitedly, "burrowing is our species' forte. ”

Guessed it, you're a rat after all. Jia Zhengjin said in his heart.

"Then, look at it!" Jia Zhengjin found a small stone and drew a huge circle in the soil layer according to the size of the creature he deduced, "You dig here, based on the circle I drew, dig down five meters deep!"

"What's five meters?" the mouse asked.

"I don't even know this?" Jia Zhengjin held his forehead with a headache and thought for a moment, "Wait for me for a while." ”

"Hey, why are you going, don't leave me here alone~" Seeing him turn around and run to the side, the mouse hurriedly chased after him.

Jia Zhengjin ignored it, quickly searched for a few small stones in the surrounding area, then picked up a few dead branches, and pulled out a few plant seedlings to get fibers.

"What are you doing, Keane?" the mouse followed, curiously watching his every move.

After collecting the basic materials, Jia Zhengjin opened the skill interface, spent a skill point in the tool option to activate [Stone Tool Manufacturing], and then found [Tool Mastery] and added all the remaining 4 skill points.

Stone tool formulas such as stone axes, stone shovels, stone knives, stone spears, and stone crushed arrows immediately appear on the crafting interface.

[Tool Mastery] (4/10): Upgrading this skill will improve the quality of the tools you manufacture. (Level 1 can produce inferior quality tools, level 2 can make ordinary tools, level 3 has a small probability of producing exquisite quality tools, level 4 must have exquisite quality tools, level 5 has a small probability of excellent quality tools, level 6 must have excellent quality tools, level 7 has a small probability of producing perfect quality tools, level 8 must produce perfect quality tools, level 9 must have legendary quality tools, and level 10 must produce epic quality tools.) ）

After the skill points were completed, Jia Zhengjin used the materials he had just collected to make a stone shovel first.

Level 4 tool mastery, directly synthesize blue delicate quality stone tools.

"Huh!" Seeing a stone shovel appear out of thin air in Jia Zhengjin's hand, the mouse was very surprised, "What is this? Where did it come from? Why did it suddenly appear?"

"Don't worry so much, you can show me!" Jia Zhengjin directly selected a random point in the circle he drew and began to dig down.

Although it is the most basic stone tool, the soil around the pond is very soft, and it is quickly dug up to about five meters. Then he dug a path diagonally and went back to the top and looked at the mouse: "I dug at this depth, do you see?"

"See!" the mouse nodded.

"Just dig so deep, understand?"

"Understood!"

"Then let's start!" Jia Zhengjin retreated outside the circle, "I'll give you the wind." ”

"Oh!" the rat was confused, but as Jia Zhengjin had said, it used its nimble and sharp claws to start digging frantically.

Not to mention, it's really fast.

In less than half an hour, a huge pit was dug smoothly, and then climbed up and looked at Jia Zhengjin excitedly: "It's done!"

"Good!" looked at it carefully and felt satisfied. Jia Zhengjin nodded immediately, "Next, do you see the huge thorn tree over there?"

"See!" Following the direction Jia Zhengjin pointed, the mouse's gaze fell on a giant plant covered with spikes not far away. Those spikes were bigger than it and Jia Zhengjin. ”

"Come with me to chop some spikes, then lay them to the bottom of the trap, and get some branches and leaves to cover the hole, and our basic spike trap is complete!" Jia Zhengjin said, "The next thing to do is to wait!"