Coco had reached the base of the tree trunk by now.

The core was seven or eight meters away from the first floor of the tree house, so before Coco went down, Xu Xin had not noticed its size. After Coco went down, he had a reference. He was surprised to find that the core of the blue-level tree house was much larger than the core of the green-level 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 a circle larger, and it seems that Coco's little mouth can't hold it anymore.

Coco first patted the core with her little paws, then pushed it twice, but the core didn't move at all.

It used its hands, feet, and even its mouth, but it still couldn't get the core out of the soil.

"Boo! Boo!" Coco grabbed the core twice and whimpered in anger.

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

"Hmm..." Upon hearing that, Coco's ears immediately drooped and her big tail drooped to the ground.

However, it also knew that the pearl was too big for it to carry, so it could not help much. So it could only jump up sideways and then threw itself into Xu Xin's arms: "Ying..."

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

The hollow hole in the green-level tree house is wider than the width of a person's shoulders and can accommodate a person. The hollow hole in the trunk of the blue-level tree house is even wider, basically as wide as a well. It is no problem for Lou Feier to jump in and she can even move around easily.

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

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

"I understand!" Lou Feier saluted in a very unstandard way and then jumped down.

She rubbed her feet and back against the hollow of the tree and slid down, landing on the soil below.

"The core of the blue-level treehouse, the core of my treehouse, is this the core?"

Lou Feier reached out and touched the core, and immediately, a warmth flowed through her body.

Does this core have this function?

In the parasitic tree house that Xu Xin assigned to her, there was a tree house core embedded in the center of the floor, where it was constantly charging energy and emitting a bright white light.

She had studied the core for a long time but hadn't found anything.

Touching that core doesn't feel like this.

"What's wrong?" Xu Xin saw Lou Fei'er start to daze after touching the core, and asked, "Is there anything going on?"

"Ah, I'll bring the core up right away!" Lou Feier came to her senses and quickly reached out to take the core.

The result was the same as Coco, I couldn’t lift it.

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

The core was immediately pried off.

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

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

This blue-level tree house is about to collapse!

Lou Feier didn't waste any words. She kicked the sides of the tree hole with her legs and quickly jumped up with her agile body. Then she handed the tree house core to Xu Xin: "Here you go."

Xu Xin didn't even have time to read the introduction. He directly put the tree house core, which couldn't even be covered with one hand, into his backpack and said, "Let's go!"

Keke was already standing by the window watching them. When she saw Xu Xin coming over, she immediately jumped out of the window before them.

Coco was very light and landed very easily. After landing, she turned around and called out to them, asking them to come down quickly.

Xu Xin also jumped out of the window immediately.

The moment he landed, he rolled over, relieving most of the impact and landing perfectly.

Standing up, he brushed off the dust on his body.

Lou Feier also rolled beside him and stood up nimbly.

Mimi and Silver King were even more relaxed. Despite their massive bodies, they landed effortlessly after jumping out. Ah Fu didn't have to worry anymore. He flapped his wings and slowly flew out, even looking back at the withering tree house in mid-air.

Ma Hongwei, who was unconscious on the back of the Silver King, was not so lucky. After the Silver King landed, he rolled off the wolf's back due to the bumps and fell face first to the ground.

...As long as he's not dead, give him the mutation pill to activate his mutant power, and he can recover from any serious injury.

The banyan tree leaves in the tree house in front of me have completely withered and fallen, revealing the square tree house inside.

Dozens of heavy crossbows also appeared on the outer wall of the tree house.

Only then did Xu Xin discover that half of these heavy crossbows that had been hidden in the tree canopy were new crossbows developed by Ma Hongwei.

The tree house made a "crackling" sound like a branch breaking, and then cracks appeared on the wooden exterior wall of the tree house, becoming more and more dense and the cracks becoming larger and larger.

And those heavy crossbows also started to crack along with the tree house, and began to loosen.

"boom!"

As they watched, the entire three-story tree house collapsed, along with all the heavy crossbows, turning into ruins!

Only a solitary tree trunk remained standing in the center of the ruins.

The collapse scene of the blue-level tree house is much more spectacular than that of the green-level tree house.

"It's turned into a ruin..." Lou Feier opened her eyes wide and looked at the scene in front of her, then turned her head to look at Ma Hongwei lying on the ground, "This guy will probably go crazy when he wakes up. He woke up and found that his home was gone."

Xu Xin walked into the ruins, rummaged through them a few times, and after confirming that the heavy crossbows were also destroyed along with the tree house, he sighed.

Unfortunately, those are all new blue-level heavy crossbows.

But fortunately, he got a blue-level tree house core!

He took the core out of his backpack.

[The core of the tree house: This core provides the tree house with energy for growth. Removing it will cause the tree house to instantly die. The energy in the core can upgrade blue-level items to purple-level. When fully charged, this upgrade can be repeated three times. The white light emitted by the core of the tree house will frighten wild beasts, preventing them from approaching. It can also dispel heat and cold around the holder.]

"oh?"

This core has something!

What Xu Xin had previously obtained from the green-level tree house was the [Core of the Small Tree House]. The core of the small tree house could only upgrade a blue-level resource to purple-level, but this [Core of the Small Tree House] could be upgraded three times in a row when full of energy.

Not bad, it was within his expectations.

However, the abilities introduced later on made him feel very familiar.

Drive away wild beasts and maintain temperature?

23shu8