Chapter 579: The other party wants to steal the house?
The sound of Xu Xin's watch was played externally, so Ma Hongwei and Zeng Tao could hear it.
Both of them were surprised and turned to look at Xu Xin's watch.
"Underground? Drill a hole underground and get in?" Zeng Tao exclaimed.
"Underground..." Ma Hongwei immediately frowned.
The sky and the earth are fine, but underground...
His ability doesn't seem to be able to handle this situation.
Xu Xinze thought a lot in an instant.
Drilled into the ground... This possibility should have been considered!
Although there is a safe zone around the tree house, and the roots will protect the surrounding land from infringement,...
That might only be useful for those low-level wild mutated animals and plants!
At this time, the World Tree has not really grown, and the root system is at its most vulnerable.
Could it be that...the other party wants to destroy the root system of the World Tree? !
No...probably not.
The root system of the World Tree has a very wide range and can even affect the entire area 188. They cannot destroy it at all.
Therefore, they should want to destroy the body of the World Tree!
"That's right, just get in from the ground!"
Qin Fu was out of breath and was obviously running: "Just to the east of Crystal City, I found a cave dug underground. The depth is about five meters underground. This cave has penetrated about five or six hundred meters into Crystal City. ! ”
A tunnel about five meters underground and five to six hundred meters long!
Only caves?
"Are there only caves?" Xu Xin asked immediately, "Are there no wild beasts or mutated creatures?"
"When I excavated, there were no more." Qin Fu responded, "There is only a cave that is about... less than one meter in diameter. It is very narrow. If people want to enter, I am afraid they have to crawl. Digging the hole The creature should not be too big. ”
"Where is the location?" Xu Xin asked again.
"It's just a few meters outside Crystal City, but the entrance to the cave is flat and has been filled in. There are no traces at all."
Is the entrance just outside Crystal City...
All the trees near Crystal City have disappeared. If it weren't for the tree planting this time, Qin Fu might not even notice it.
"According to my observation, this cave was definitely recently excavated. Judging from the traces in the soil, the guy who dug the cave probably left not long ago."
"That is to say...last night?"
"No, this morning!" Qin Fu asserted, "This cave was definitely dug out this morning!"
"...But I don't know who dug it." Xu Xin thought of something, and her face became slightly ugly.
"Yes." Qin Fu seemed to stop, took a breath, and sighed, "Here comes another one."
"Another cave was discovered?" Xu Xin also stared, "Where are the mutated creatures? Are there any mutated creatures that are being excavated?"
"No, there is only a long hole. This one is even longer. There is..."
Qin Fu started running again, ran for more than ten seconds, stopped, gasped slightly: "It's seven to eight hundred meters!"
Seven or eight hundred meters...
The radius of Crystal City is only about 2.5 kilometers, and seven or eight hundred meters is considered to be relatively deep into Crystal City!
"Looking at it this way, there's no need to worry too much." At this time, Zeng Tao said, "They only dug a few hundred meters and then left. It means they couldn't bear it anymore. If they could bear it, wouldn't they dig straight to the end?" Are you destroying the World Tree inside?”
"No." Xu Xin directly denied her statement, "Seven to eight hundred meters is already very deep. If it would be affected, it should have been affected long ago."
If you can reach the position of seven or eight hundred meters, you will definitely be able to continue deeper and directly enter the center of Crystal City and reach the location of the World Tree.
"Huh? Then what do you think happened? Why did you go back halfway through digging?" Zeng Tao asked doubtfully, "Abandoned halfway?"
"Another one was found." At this time, Qin Fu's voice came out from the watch again, "This should be the last one. This one is also five or six hundred meters long, so it is probably about this length."
"See?" Zeng Tao suddenly felt a little proud, "They all stopped at this distance. Doesn't that mean they can't get in here? That must be the case."
Xu Xin glanced out the window.
What Zeng Tao said is not unreasonable, but...
At this time, Ma Hongwei sat in front of his test bench, put down the drawing in his hand and said, "If there are only three caves, is it just a test?"
"Testing?" Zeng Tao looked back at Ma Hongwei, "What do you mean?"
"I also have this idea." Xu Xin nodded slightly, "This is obviously a test. If you want to attack the World Tree... what is the use of just a few such narrow passages?
These passages may be just for the other party to test whether they can dig a hole underground to enter the Crystal City and get close to the World Tree. ”
"I think so too."
On the other side of the voice, Qin Fu spoke again.
"Why do you all think so?" Zeng Tao curled her lips.
"After going a few hundred meters deep, the spies had determined that they could approach the World Tree from underground, so they left." Xu Xin explained the situation to the [Explorers] group while explaining.
As for why he went back at a distance of seven or eight hundred meters, Xu Xin believed that the closer he got to the body of the World Tree, the more developed and dense the root system of the World Tree would be, and the difficulty of digging would also increase exponentially.
"We need more diggers." Xu Xin squinted his eyes and looked out the window, "So, they are going back to invite a large force."
"Ah?" Zeng Tao immediately ran to the window and looked out, "You mean... there will be a large force attacking soon?"
"It's possible."
Everyone in the group of explorers saw the message sent by Xu Xin.
Wang Lei: "Hey, did you send a big rat here?"
Zhao Xiaochuan: "Drilling holes underground... I thought it would be the safest to have the roots of the World Tree and the treehouse guarding the ground..."
Qin Yunlong: "What if we really dig it out from the ground?"
Ji Chaoyang: "Let's gather under the World Tree to discuss."
Qi Xuefei: "Okay."
Wen Guixin: "Wait for me and go back immediately. I'm a little far away! I'm watching these submissive mutated creatures from the outside!"
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 be responsible for the guys digging holes above the ground, in the air, and underground... I can't handle it, so I might as well do more research."
Xu Xin nodded.
He doesn't like crowds of people and usually won't participate unless necessary.
"Let's go."
Xu Xin and Zeng Tao got off 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, and it can no longer be seen without careful observation.
Except for Wen Guixin, who was a little far away, and the person involved, Qin Fu, everyone else arrived.
Even Lou Feier and Jin Yue were there.
After all, Lou Fei'er is also in the group and can also see Xu Xin's news.
Jin Yue was completely transformed at this time.
The figure is more straight and the skin is supple and supple.
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 gathered under the World Tree.
Wen Guixin followed closely behind.
"Qin Fu, please tell me clearly what you discovered."
"Okay." Qin Fu nodded, "That's it..."
Qin Fu described the situation in the cave in detail again.
"We really need to seriously think about countermeasures." Ji Chaoyang said solemnly, "It is difficult to stop an underground invasion."
"Drilling holes underground..." Wang Lei stepped on the ground, "This alien invader really uses all kinds of despicable methods. Do they want to steal homes directly from the ground?"
"Are they going back to call for the army?" Zhao Xiaochuan said worriedly, "Isn't that coming soon? We must think of a way as soon as possible!"
"No." Xu Xin expressed her thoughts, "Maybe, not so soon."
Everyone else looked at him.
"My idea is that underground invasion is not so easy to carry out secretly." Xu Xin explained, "After all, when there are many mutated creatures when digging holes underground, it is easy for us to detect their movements. Especially Me.”
Xu Xin has map ability, and large red dots appear around him. How could he not notice it?
"That's right." Ji Chaoyang also agreed, "Moreover, there are a large number of mutated creatures that have taken refuge with us at the edge of our Crystal City. There are only one or two of them that may not move, but if the enemy appears in a large area, it is impossible for them to It is impossible to remain indifferent if you want to launch a large-scale attack.”
"That's true." Wen Guixin nodded, "I went to see the group of mutated creatures. They are all in high spirits now, and their attitude towards me is also very friendly, and they also expressed their desire to protect Crystal City. .”
"What if we come from farther away?" Qi Xuefei asked.
"This is indeed a possibility." Xu Xin took over the words and said, "However, what I want to say is another possibility. That is... the underground army may appear together with the ground and air armies."
Xu Xin's words made everyone present slightly change their expressions.
"If it were me, I would do this. When a large number of mutated creatures appear together, some of the mutated creatures will burrow into the ground and will not be conspicuous.
These mutated creatures head towards the World Tree from underground, while enemies on the ground and in the air are responsible for attracting attention. ”
"We have prepared many ways to deal with enemies on the ground and in the air. We have everyone's treehouse heavy crossbow, which has good anti-air capabilities. Coupled with Sister Gui Xin's ability, the beasts will not be afraid."
"But..." Xu Xin pointed to the ground and said: "While we are happy to repel the enemies in the air and on the ground... the enemies underground may have destroyed the World Tree. Without Qin Fu's ability, this may be What happened to us.”
Xu Xin's words silenced everyone around him.
Everyone, including Xu Xin herself, felt a chill.
Indeed.
If it weren't for Qin Fu's ability, and if the other party really arranged it like this, then they might have been robbed unknowingly.
"It's very possible." Ji Chaoyang looked at the World Tree beside him, "Moreover, digging holes underground to get under the World Tree may be able to better destroy the World Tree. Underground attack may really be their real method."< br>
"Why?" Wang Lei was a little puzzled. "The root system of the World Tree is so developed. It won't be of any use if they destroy just a few roots. It still needs to be severely damaged. That's not as good as the ground. You still have to dig soil underneath."
"First of all, there is the Crystal City above. It is difficult for them to get in." Ji Chaoyang patted the World Tree, "Secondly, this World Tree is also a tree house. It should... also have a tree house core."
Treehouse Core…
Yes.
Everyone reacted immediately.
Where is the treehouse core?
Half buried in the soil beneath the hollow of the tree trunk.
If you invade from underground...
Maybe we can just dig out the core of the treehouse of the World Tree!
That way, there is no need to destroy the World Tree. The World Tree without the core of the tree house will naturally wither and die.
They are all too familiar with what will happen to a treehouse that loses its core.
And it would be very difficult to destroy the World Tree from the ground.
Simply doing some damage will not kill the tree house. If you want to destroy the tree house from the ground, you need to cut it directly.
But the World Tree is so strong...
Xu Xin looked at World Tree again.
Now the diameter of the trunk of the world tree is probably more than ten meters.
An extremely strong and tall towering tree!
It is impossible to break this tree on the ground.
From this point of view, Xu Xin's conjecture that the underground is the main attack is becoming more and more reasonable.
But...
Xu Xin glanced at the World Tree again.
Is this World Tree a bit... too thick?
Is the World Tree in Shi Wanyun's memory just that thick?
And this world tree seems to need a few more days to grow.
Is this tree stronger than the world tree of those alien invaders?
...When Yingying was here before, she should have asked more about this world tree.
What he knows now is that this world tree is the most successful tree house seed in their experiment.
"Now that we know, how to solve it?" Wang Lei pointed to the ground, "We don't seem to have any way to deal with the mutated creatures that burrow underground, right?"
Indeed not.
Everyone frowned, thinking about how they would respond if Xu Xin's suspicion came true.
At this time, Lou Fei'er tugged on Xu Xin's clothes and whispered: "Can't your pangolins also be able to drill holes? I took a look this morning and the two little ones have grown very big. . Can they come in handy? ”
Pangolin concubine and those two little guys?
yes!
My concubine should have been promoted to an intermediate mutant creature now!
"Xu Xin, your pangolin, can you dig out a few burrowing mice from the ground?" Wen Guixin said, "If possible, I will infect the ones I pulled out and let them burrow in again... ”
Hearing this, the eyes of everyone around him lit up.
Let that infected guy infect the entire underground legion!
Let them all die underground!
"What a great idea!" Wang Lei clapped his hands, then laughed and said, "Haha, with Sister Guixin here, it's really easy to deal with the beasts!"
Xu Xin and Ji Chaoyang also looked at each other, and then nodded.
"However, we cannot take it lightly." Xu Xin said, "This does not solve all possibilities."
"Yes, the underground passages they dug are probably not connected, and it may not be easy to infect a large area." Ji Chaoyang also said, "Moreover, we must also be careful of the very powerful creatures that may appear underground. Wen Guixin cannot be infected for a short time."
"Then we should..."
"Dig ditches." At this time, Qi Xuefei proposed a plan, "Dig a deep and wide enough ditch around the World Tree. In this case, it may be able to stop the pace of underground digging. If they dig out and enter We can also attack in the ditch, and the treehouse heavy crossbow can also come in handy.”
“What a great idea!”
"That makes sense!"
"If you dig deep enough, they have to be dug out of the trench!"
"Well, at least it can slow down their movements and make it easier for me to infect." Wen Guixin also agreed, "How deep should it be?"
"The cave they dug is five meters deep." Qin Fu said at this time, "Shall we dig ten meters? Fifteen meters?"
"So deep..."
Ten meters, that’s the height of a three-story building.
Fortunately, they have advanced tools, so digging is easy.
There are also three pangolins that dig extremely fast.
"Well, we can give it a try." Xu Xin thought for a while and said, "However, the root system around the World Tree is probably very close to the ground. If we don't want to damage the root system of the World Tree, we need to do it somewhere farther away."< br>
But if it is too far, the amount of work required to dig a deep trench will be too great.
This distance needs to be grasped by yourself.
"In that case, let's act quickly!" Zhao Xiaochuan took out the shovel directly, "I don't want the core of the World Tree to be ripped out!" (End of Chapter)