Xu Xin flipped through the pile of things on the third floor again, but found no novelty.

There were a bunch of tools on the ground, some for cutting and some for polishing. Xu Xin didn't understand these things, but since they were tools, he put them in his backpack along with the semi-finished heavy crossbow.

This heavy crossbow looks like it is close to the finished product. After the contract Ma Hongwei is made, he will continue to complete it and may get another good weapon.

After taking away all these things, there was only one floor of wood and debris left on the entire three floors, and they were all green, all of which were worthless waste resources.

Xu Xin came to the second floor, and Lou Feier had already put all the decorations in the tree house into her backpack.

"Is there any special decoration?" Xu Xin asked.

"No, they are all very ordinary, with green crystals and mahogany of various colors, which are picked up during the rainy season." Lou Feier also took out a few gadgets and showed them to Xu Xin, "The others are all small decorations bought from the points mall."

Everyone sells the same decorations in the points mall, so even if you steal the decorations you bought from the mall, it is useless and can only be put into the parasitic tree house.

"Please pack it for him and put it in his tree house then." Xu Xin nodded and said.

Since he has a special functional area of ​​[External Weapons Research Room], he needs to decorate to increase the amplitude. Although he doesn't know what it is to add the amplitude point to this laboratory.

Increase the success rate of research?

It should be like this. Qi Xuefei also said that her drug research may fail.

Xu Xin came to the first floor.

Coco had been waiting for him on the first floor. When he saw him coming, he screamed "screaming" and grabbed the floor of the tree house.

Its current location is the center point of the tree house, which is the location of the trunk of the tree house.

This is to let Xu Xin dig open the floor of the tree house so that it can go in and take out the core of the tree house.

but……

The first floor of this tree house is also seven or eight meters high. Take out the core, and how do they go out after the death of the tree house?

Did it collapse with the tree house?

Or, jump out of the window. But the height is not low...

It should be a big problem. It is about seven or eight meters high, and it will not hurt if it jumps down and rolls and buffers. With his current physical fitness, it is simply too simple to land and buffers.

But the coma guy on the second floor...

Xu Xin returned to the second floor and told Yin Wang and Mimi that when the tree house collapsed, remember to protect Ma Hongwei and not let him die.

After hearing this, Mimi directly lifted up the unconscious Ma Hongwei with her claws, lifted him up on the Silver King's back and leaned down.

"Ao?" The Silver King was stunned for a second, then shook his body, making Ma Hongwei stand up straight and not easily fall.

Well...this is OK.

Xu Xin returned to the first floor of the tree house.

"Do you want to obtain the core of the tree house?" Lou Feier was waiting on the first floor and was staring at Coco. When she saw Xu Xin coming back, she was a little excited. She hadn't seen the scene of the core of the tree house being acquired.

To be honest, Xu Xin is a little looking forward to it.

Because this tree house is not the green-level tree houses he has obtained before, but a blue-level tree house!

A higher-level tree house, he has not yet obtained the core of the blue-level tree house!

I don’t know what the core of this blue-level tree house has. Can you obtain higher-level materials than purple-level?

No, probably not. Even Xu Xin and the others can't use it for the time being. After all, using materials higher than purple-level to make weapons and armor, the basic materials require purple-level materials. How can they have so many purple-level materials!

It's useless to guess, so let's chisel it open and take a look.

Xu Xin took out his blue-level iron axe, and Coco also jumped behind him.

He waved the axe in his hand and chopped it on the floor in the center of the tree house with a "click".

The floor immediately cracked, but the degree of cracking was much smaller than that when Xu Xin digged the floor of the green-grade tree house. Compared with the green-grade tree house, the blue-grade tree house is stronger in all aspects.

Xu Xin continued to cut down the ground, which originally only needed two axes to cut it down, but he used more than a dozen axes to cut it off completely, revealing the hole in the trunk below.

The trunks of the blue-grade tree house are also a lot thicker than those of the green-grade tree house, and the hollow caves in the trunks are also much larger.

Xu Xin looked inside and found that in the soil at the bottom, there was a bead with a white light emitting light, half exposed outside the land.

The bright white light is much brighter than the core of the green tree house.

This light, like the light emitted by the core fragments of the giant energy in his hand, really looks like...

Is it really related to the two?

But the seed of this tree house was given to him by that mysterious voice. According to his speculation, the mysterious voice should be the Blood Pattern Clan who now controls this world, that is, the outsiders of this world, not the giant beast lineage.

What is the secret in this?

Forget it, don't think about it anymore.

Now I can't figure it out.

"Coco, go down and take that core up."

"Yeah!"

Keke had already been eager to try at the entrance of the cave, but when he heard Xu Xin say this, he immediately rushed in.

"Well...? So that's how the core was obtained..." Lou Fei'er's eyes turned slightly, not knowing what she was thinking.

"After the core is taken out, the tree house will be damaged immediately. Remember to jump out and don't be buried." Xu Xin warned.

"Yeah, I understand." Lou Feier also leaned her head down.

Coco has reached the bottom of the tree trunk at this time.

The core is seven or eight meters away from the first floor of the tree house, so before Coco goes down, Xu Xin has not noticed its size, and Coco goes down with a reference. He was surprised to find that the core of the blue-grade tree house is much larger than the core of the green-grade tree house.

The core of the green-level tree house is only the size of a fist, while the core of the blue-level tree house is larger, and it feels like Coco's small mouth is not enough to hold it.

Coco first patted the core with his small paws, and pushed it twice, but the core did not move at all.

It used both hands and feet and mouth, but it failed to get this core out of the soil.

"Hehe! Hehe!" Keke grabbed the core twice, screaming in anger.

"Coco, stop digging, you can't bring it even if you dig it out, come up quickly." Xu Xin stopped Coco.

"Yeah..." Hearing this, Keke's ears immediately collapsed, and his big tail hung on the ground.

However, it also knew that the bead was too big and could not hold it up and could not help, so it could only jump left and right, and then threw itself into Xu Xin's arms: "Yeah..."

"I'll go down." Lou Feier volunteered, sat on the edge of the hollow tree hole, looked at the core below and said, "I can take it up."

The hollow tree hole in the green-level tree house is wider than the shoulder width of a person, and the hollow tree hole in the blue-level tree house is wider, which is basically the same as the well. It is no problem for Lou Feier to jump down, and she can even move easily.

"Okay." Xu Xin touched Coco's little head and nodded in agreement.

He originally wanted to go down by himself, but since someone was going to do it, he didn't have to do it himself: "Remember to come up immediately after getting the core, and the tree house will collapse immediately."

"I understand!" Lou Feier gave a very unstandard greeting and then jumped down.

She rubbed her feet and back against the tree holes, slid down, and stepped on the soil below.

"The core of the blue-grade tree house, the core of my tree house, is that?"

Lou Feier reached out to touch the core, and suddenly, a warm feeling flowed all over her body.

There is such a function in this core?

In the parasitic tree house that Xu Xin gave her, the center of the floor was inlaid with a tree house core, which was always filled with energy and constantly emitted a bright white light.

She has studied that core for a long time, but she has not developed anything.

Touching that core, there is no feeling like this now.

"What's wrong?" Xu Xin saw Lou Feier touching the core and started to daze, asking, "Is there anything wrong?"

"Ahh, I'll take the core up right away!" Lou Feier came to her senses and quickly took the core with her hands.

The result is the same as cocoa, and it cannot be held.

She showed that she dug the surrounding soil with her hands, took out a dagger, inserted it under the core, and then pried it hard.

The core was pried out immediately.

"Come up!" Xu Xin could already feel the floor shaking slightly.

Through the window, he saw the leaves of the banyan tree outside turning yellow rapidly.

This blue-grade tree house is about to collapse!

Lou Feier didn't say anything nonsense, kicked her legs against both sides of the tree hole, jumped up quickly with her agile figure, and then handed the core of the tree house to Xu Xin: "For you."

Xu Xin didn't have time to read the introduction, so she put the core of the tree house that she couldn't even wrap with one hand into her backpack: "Go!"

Keke was already standing by the window and watching them. Seeing Xu Xin coming, he immediately jumped out of the window first.

The cocoa landed very lightly and easily. After landing, it turned around and shouted at them, asking them to come down quickly.

Xu Xin also jumped out of the window immediately.

The moment he landed, he rolled, removed most of the impact and landed perfectly.
To be continued...