Xu Xin was a little excited.

You should know that the tree house core can only upgrade basic supplies. This kind of material cut from living creatures cannot be obtained through core upgrades and can only be cut with a boning knife!

A piece of fish scale skin was curled up on the ground, emitting a purple light.

There was only one piece, but Xu Xin was already very satisfied. He reached out and picked up the fish scale skin.

[Mutated piranha scales: A type of animal hide, extremely tough and 100% waterproof, a very high-end material!]

The tough fish skin of piranhas is also a kind of animal skin. Xu Xin has known this for a long time. He has obtained more than a dozen blue-level fish skins.

Purple-grade animal hide?

Animal skins have two uses: one is to make leather armor, and the other is to make backpacks.

Xu Xin immediately decided to make this animal skin into a purple-level backpack.

He didn't really need another set of purple armor. After all, there was no need to choose which was stronger, the piranha skin or the scales of the giant anaconda in the center of the lake.

But the purple-level backpack was different. He now had to carry two blue-level backpacks with him at all times, and sometimes he also gave one to the Silver King. It was really not enough, especially when he encountered something very heavy. Reducing the weight to 10% was meaningless because he still couldn't carry it.

He needs a better backpack!

Xu Xin immediately came to the crafting table and clicked on backpack making.

The basic success rate of the purple backpack is also 80%. With the production room and the backrest chair, the success rate can easily reach 100%.

A white light flashed, and a purple-level backpack appeared in his hand.

[Exquisite Backpack: A backpack with 50 slots. The amount of supplies that can be placed in each slot is determined by the type of supplies. The weight of the supplies can be reduced to 2% of the original type.]

Wow, 2%!

One-fiftieth! In other words, even if he carried fifty piranhas on his back, it would only be equivalent to the weight of one piranha!

The blue-level backpack reduces the weight to one-tenth, but changing to a purple-level backpack directly increases his carrying capacity to five times!

And there are more grids, so he no longer needs to carry several backpacks when going out.

Really good!

Purple backpack, perfect!

Xu Xi immediately transferred everything in his backpack, including his crossbow, steel halberd, spare resources, etc., into the purple-level backpack and carried it on his back.

As for this blue-level backpack that has been with him for a long time, just leave it in the tree house as a warehouse!

He collected the dozen or so blue-level fish skins that he had decomposed, kept the meat of two of the dozen or so fish as food for the next few days, and then put the rest into the ice cellar.

Even though it was cold outside, the fireplace was kept burning inside the tree house.

The temperature released by this fireplace can affect the entire tree house, keeping the temperature inside the tree house at around 25°C. Even the farthest floor is around 20°C.

So it is necessary to freeze the meat in an ice cellar.

After dealing with these, Xu Xin came to the alchemy room.

Now that he has the materials, he wants to make the other two coordinates.

Tonight we will connect all four tree houses.

Li Wenxi even gave him some extra materials, so he had plenty of them.

Refine iron blocks into iron sand, refine black gold blocks into black gold dust, and then refine universal alchemical materials.

Soon, twenty-five sets of universal alchemical materials were produced.

Twenty copies are enough for the two coordinates, but making more won't hurt. With his current success rate, he can already start making alchemical potions!

Xu Xin immediately clicked on coordinate creation.

With two loud bangs, the two coordinates were successfully created, and two heavy metal discs were stacked in the alchemy room. The success rate of the coordinates remained at 88%, and with the bonus of the koi's luck, the possibility of failure was very small.

Xu Xin immediately initiated a transaction with Ji Chaoyang and Qi Xuefei, trading the two coordinates to them, and clicked on [Explorer] at the same time.

Brother Qin Yunlong and Wen Guixin have almost cleaned up the surroundings.

With Wen Guixin as the ceiling of combat power, they almost pushed forward smoothly, capturing those who should be captured and killing those who should be killed. They had already subdued three people, and there were five in the parasitic tree house. After all, some ignorant people from outside the area were killed by Wen Guixin.

The only drawback was that they had no mounts, so their efficiency was much lower. After a whole day of focused work, they only managed to subdue three people.

Wang Lei and Zhao Xiaochuan did not meet with them and had to deal with their own affairs.

Xu Xin immediately said, "I've already connected the coordinates with Li Wenxi and tried teleporting. It's completely feasible. I can connect Ji Chaoyang and Qi Xuefei tonight. However, the rest of you can't do it yet. You'll have to wait."

Ji Chaoyang: "I have received it and selected the location. You can just come over and debug it."

Qi Xuefei: "Is this disk the coordinate? It's so different from what I imagined..."

Wang Lei: "Ah? Can the coordinates be traded? Isn't that perfect?"

Xu Xin: "I need to activate it on site in person. It's useless to trade it to you."

Wen Guixin: "Do you actually need to come in person? Then we won't be able to enjoy the convenience of teleportation for the time being. It's too difficult. The distance between Qin Yunlong and the others' tree house is still quite far."

Zhao Xiaochuan: "I think I saw the hill with the crooked tree you mentioned!"

Wen Guixin: "See? Which direction of the hills are you in?"

Zhao Xiaochuan: "The West?"

Qin Yunlong: "My tree house is just west of the hill! Can you see the three-story tree house nearby?"

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