If it hadn’t suddenly erupted with a terrifying speed far beyond before, Xu Xin would have still thought it was lingering at the intermediate level.

That invincible burst of speed, wanting to kill Xu Xin within ten meters, was a matter of a swipe, and he wouldn’t have been able to react.

Fortunately, Mimi still has a contract with him, and it also has the bloodline of a giant beast. Crystal City has a strong influence on it as well, so there’s no need to worry that Mimi would be controlled by the mutant creature’s bloodline.

Similarly, under the influence of Crystal City, its body size has also grown larger than before.

Thus, it became the king of mutant creatures as a matter of course.

Compared to Mimi, Afu has advanced to the intermediate level, while Silver King has not yet reached the advanced level. Fortunately, it’s already very close.

In any case, with Mimi’s help, the outermost mutant creature defense line has been properly arranged.

Within this one-day period, the inner and outer defense lines of Crystal City have been arranged properly on the outer circle.

Outermost layer, mutant creature defense line.

The second layer, a treehouse crossbow defense line of two hundred survivors.

The third layer, a trench defense on both the underground and surface, along with a defense line composed of explorer elites.

The fourth layer, the plant heart guard defense inside the trench, and Xu Xin’s super crossbow killing weapon.

All the defense lines have been completely laid out!

Four layers of defense, interlinked!

Just waiting for those enemies planning to attack the world tree to strike.

This time, they are very well prepared!

Xu Xin twisted his neck to relax his nerves, tense from the entire day’s stress.

According to Qin Fu’s report, there was nothing noteworthy within Crystal City or outside throughout the day.

Not sure why the opposition didn’t attack today, giving them ample preparation time.

Maybe the opposition also needs preparation, after all, preparing a mutant creature army without the giant beast bloodline on Earth isn’t easy.

Perhaps they are also gathering forces.

But this also requires more attention.

If before they thought the opponent’s real offensive was from underground infiltration to steal the world tree’s crystal, now all the explorers believe both the ground and underground are their main offensive methods.

The surface isn’t just covering the underground, but simply a split-force strategy.

The ground mutant creature groups are also aimed at destroying the world tree!

Therefore, caution must be doubled.

Also, the airborne enemies, which they cannot confirm yet.

Overall, tomorrow’s battle is still an unknown.

They’ve prepared everything they can; the rest is up to their best efforts.

At this moment, Xu Xin’s watch suddenly vibrated.

It was a call from Shi Wanyun far away in Zone 1.

"Things are basically settled on my end; I’ve convinced them," Shi Wanyun said softly, bringing good news.

"How did you persuade them? Did you tell them the truth?"

"Of course not," Shi Wanyun chuckled, "It took a lot of effort for you to tell me these truths, how could I possibly tell them directly. Moreover, didn’t you say not to mention it?"

"Then how did you..."

"I just used my ability to show the other party a glimpse of the world tree and Crystal City, telling him this is the city you explorers possess."

This maneuver... simple yet effective.

Even the strong ones in Zone 1 would definitely be astounded by the combination of Crystal City and the towering giant tree.

However...

"Didn’t you say you didn’t want others to know about your ability?" Xu Xin asked.

"I only let one person know, Cheng Jun’an, you might have heard of his name."

Cheng Jun’an.

His name was on the previous snow mountain rankings.

After establishing an alliance between two zones and connecting them, he privately chatted with him as well.

It was mostly just some normal greetings, saying things like cooperating to win and survive together.

This man named Cheng Jun’an had also taken first place in the Zone 1 rankings at one point, on the same level as Shi Wanyun in Zone 1 strong ones.

"I only told him, he doesn’t need to disclose my ability to others."

"Forehead to forehead?"

"...Just touched him a bit, let him see the scene," Shi Wanyun chuckled, "Don’t worry, I am not interested in him. He is also very guarded against me; if it weren’t for the affinity enhancement, I might not even be able to get close to him."

"...That’s not what I meant." Xu Xin said helplessly, "So, he helped you persuade the folks in Zone 1."

"Yes, with the endorsement of the two strongest people in Zone 1, informing everyone in Zone 1 that we are heading to Zone 188 to help protect the world tree, now everyone in Zone 1 is eager to move."

That indeed saved a lot of effort.

With the local big shots all leaving, the remaining survivors would naturally follow.

"However, he also had conditions.

Some people are strongly opposed in Zone 1 because those people have already sided with other strong figures in Zone 1, and their treehouses cannot be relocated anymore. Cheng Jun’an agreed because he only received two people himself, and his condition is...

For the two individuals currently parasitic in his treehouse to have parasitic treehouses of their own. I agreed for him."

"That’s a good agreement, no problem with that."

There are quite a few parasitic treehouses left in the explorers’ hands, giving him two is completely doable.