"Huh?" Zeng Tao immediately ran to the window and looked out. "You mean... a large army is about to attack?"
"It's possible."
Everyone in the explorer group saw the message sent by Xu Xin.
Wang Lei: "Fuck, did they send a big rat here?"
Zhao Xiaochuan: "Digging a hole underground... I thought the ground was the safest place because it was protected by the roots of the World Tree and the tree house..."
Qin Yunlong: "What if we really dig this out from underground?"
Ji Chaoyang: "Let's gather under the World Tree to discuss."
Qi Xuefei: "Okay."
Wen Guixin: "Wait a moment, I'll go back right away. I'm a bit far away! I'm on the periphery watching these surrendered mutant creatures!"
Xu Xin also wanted to leave immediately.
"I want to go too!" Zeng Tao immediately wanted to follow Xu Xin.
She wanted to escape from here.
"I won't go." Ma Hongwei waved his hand. "I can only take care of the guys above the ground and in the air. I can't handle the guys digging holes underground. I might as well do more research."
Xu Xin nodded.
He doesn't like crowds, and generally won't join in unless it's necessary.
"Let's go."
Xu Xin and Zeng Tao got down from the tree house and came to the edge of the World Tree.
Looking at the World Tree again, it is still growing, but the speed is not as fast as before that can be seen by the naked eye. If you don't look carefully, you can't see it.
Except for Wen Guixin, who was a little far away, and the person involved, Qin Fu, everyone else had arrived.
Even Lou Feier and Jin Yue were there.
After all, Lou Feier is also in the group and can see Xu Xin's messages.
At this time, Jin Yue had completely changed.
The figure is more upright and the skin is so tender.
Seeing Xu Xin looking at her, she nodded slightly, indicating that she had fully recovered.
At this time, Qin Fu came back.
He walked directly towards the place where the crowd was gathered under the World Tree.
Wen Guixin followed closely behind.
"Qin Fu, please tell me again clearly what you discovered."
"Okay." Qin Fu nodded, "It's like this..."
Qin Fu recounted the situation in the cave in detail.
"We really need to think seriously about countermeasures." Ji Chaoyang said in a deep voice, "Underground intrusion is difficult to stop."
"Drilling a hole underground..." Wang Lei stomped on the ground. "These alien invaders are really using all kinds of despicable means. Are they trying to steal a house directly from underground?"
"Are they going back to call the army?" Zhao Xiaochuan said worriedly, "Doesn't that mean they're coming soon? We must find a solution as soon as possible!"
"No." Xu Xin expressed his thoughts, "Maybe not that fast."
Everyone else looked at him.
"My idea is that an underground invasion isn't that easy to conduct secretly," Xu Xin explained. "After all, if there are too many mutant creatures digging underground, it would be easy for us to detect their movements. Especially me."
Xu Xin has map-building abilities, and how could he not notice the large red dots appearing around him?
"That's right." Ji Chaoyang also agreed. "Moreover, there are still large numbers of mutant creatures on the edge of our Crystal City who have defected to us. They might not take action if there are only one or two of them, but if the enemy appears on a large scale, they will definitely not remain indifferent. If we want to launch a large-scale attack, we will inevitably be exposed."
"That's true." Wen Guixin nodded. "I went to see the group of mutants. They are all in high spirits now, and they are very friendly to me. They also expressed their desire to protect Crystal City."
"What if it comes from farther away?" Qi Xuefei asked.
"That's certainly a possibility," Xu Xin continued. "However, I want to discuss another possibility. That is... the underground army might appear together with the ground and air forces."
Xu Xin's words made everyone present change their expressions slightly.
"If it were me, I would do this. When a large number of mutant creatures appear together, some of them will burrow into the ground and become inconspicuous.
These mutant creatures are moving towards the World Tree from underground, while the enemies on the ground and in the air are responsible for attracting their attention."
"We've prepared a lot of methods to deal with ground and air enemies. We have the treehouse heavy crossbows, which have good anti-air capabilities. Combined with Sister Gui Xin's abilities, the beast herd is nothing to fear."
"But..." Xu Xin pointed to the ground and said, "While we were rejoicing over repelling the enemies in the air and on the ground... the enemies underground might have already destroyed the World Tree. If it weren't for Qin Fu's abilities, this might have been what happened to us."
Xu Xin's words silenced everyone around him.
Everyone, including Xu Xin himself, felt a chill.
That's true.
If Qin Fu didn't have that ability, and if the other side had really arranged it this way, they might have been robbed without even realizing it.
"It's very likely." Ji Chaoyang looked at the World Tree beside him, "Moreover, digging a hole underground to the bottom of the World Tree might be a better way to destroy it. An underground attack might really be their real method."
"Why?" Wang Lei was puzzled. "The root system of the World Tree is so developed. It wouldn't be any use destroying a few of them. They still need to do heavy damage. It would be worse than the ground. They still need to dig the soil underneath."
"First of all, there's a Crystal City up there. It's not easy for them to get in." Ji Chaoyang patted the World Tree. "Secondly, this World Tree is also a treehouse, so it should... also have a treehouse core."
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