Hearing Tian Wu's words, Xiao Yi always felt a little twisted, and he continued to ask: "You all said that this world will come to the Chosen from time to time, and the undead should have done the same when they came to the Chosen last time. Don't you all know?"

Tian Wu shook his head and replied, "I don't know, you are the first batch of Heavenly Chosen I have ever seen."

Xiao Yi frowned and pondered.

If the undead have done this before, and the frontline didn't notice it, does it mean that the previous survivors successfully resisted those undead?

But what about the island monuments and islands infested with death?

There are also those evil organizations in the indigenous dynasties, all of which are related to the undead, indicating that the undead have indeed invaded the rear.

So there is only one explanation.

There is always only one truth!

That is, the undead did use the wormhole to invade the rear at a certain stage when the survivors came to this world, but when the survivors left this world, the wormholes of the undead disappeared with the survivors.

This caused the undead to invade the rear, but there was no way to invade the rear!

"So, when the last Survivor came to the testing ground of the World Battlefield, most of them should have reached the SSS level!" Xiao Yi secretly said.

If not everyone has reached the SSS level, then the undead will have enough time to operate the affairs of the rear invasion.

And this year's Survivor included Xiao Yi, a freak with a system, so his level increased so fast that he opened the World Battlefield ahead of schedule, and the levels of others didn't keep up.

In this way, the time of the world battlefield will be stretched, and the undead will have enough time to complete a large-scale invasion of the rear.

In the current situation, if Xiao Yi hadn't provided advanced weapons to each alliance, the undead would have already completed the invasion.

After figuring out these things, Xiao Yi felt a little helpless, as if he had given the undead a chance.

"If that's the case, then let's completely eliminate the undead in this world!" Xiao Yi thought.

Thinking of this, Xiao Yi asked Tianwu: "Patriarch Tianwu, how is the situation on the front line now?"

"It's been in a stalemate all the time!" Tianwu replied immediately, "If you hadn't rushed over from the wormhole, the section guarded by our dragon people would still be in a stalemate!"

Xiao Yi nodded, and then said: "You mean that the difference in strength between the two sides is not very big. As long as there is a new force joining in, the scale of victory will be tilted towards us, right?"

"It should be!" Tian Wu replied.

Hearing the word "should", Xiao Yi twitched the corners of his mouth, but he couldn't be too harsh to ask Tianwu to give a definite statement.

After all, they have been guarding this line of defense, and he doesn't know how the other lines of defense are currently!

"If that's the case, let's start the counterattack from here!" Xiao Yi said in a deep voice.

Tian Wu asked in surprise: "Are you willing to help us attack the undead?"

Tianwu knew that after a period of time, the Chosen Ones would still leave. They could ignore the war here and stay out of it!

But Xiao Yi said this, which really surprised Tian Wu!

Xiao Yi nodded and replied: "It's also helping us! These undead have been harassing our survivors, making us extremely annoying."

"Okay, with the help of a powerful Chosen like you, we will definitely be able to defeat the undead!" Tian Wu said excitedly.

Xiao Yi replied in a deep voice: "This undead is not simple, don't be careless!"

Tian Wu nodded and said: "Then I will contact the nearby defense team first. We'd better launch an attack together and defeat the opponent in one fell swoop."

"Okay, let's go!" Xiao Yi replied.

Tian Wu greeted Xuan Qi and left.

Xiao Yi just said that the undead are not easy, not because they think they are powerful, but because there are people behind them to help them.

Just last weekend, there was just a reminder on the island tablet that the level and offensive of those undead were raised.

If you find yourself taking someone to the front line, and you have to get the undead, why don't the people behind the scenes immediately raise the undead to invincible?

So in Xiao Yi's view, the trouble is not the undead, but the people behind the scenes!

After Tianwu left, Jiang Yuntian came over and said, "Islander, do we really want to get involved in the battle here?"

Xiao Yi nodded slightly, then said what he had guessed, and finally said: "If you let the undead attack the Survivor Alliance like this, there will always be a situation where you can't prevent it, and everyone's level has not been upgraded to SSS. This gives the undead enough time to invade the rear of the human race, and if it really comes to a full-scale invasion, it will be difficult for us to stay safe."

Jiang Yuntian nodded.

"What's more, I caused this situation now, and naturally I have to take part of the responsibility!" Xiao Yi continued with a smile.

"Well, that's okay, just use this huge battlefield to train our alliance's army!" Jiang Yuntian replied.

Xiao Yi urged: "Safety first!"

"clear!"

Soon, Tian Wu rushed back, with an elf following him.

Since it's an elf, it's easy to talk, just let Felice from the elf family communicate with the other party.

Seeing that the dragon people guarded the side really pushed the undead back, plus the introduction of Felice, who is also an elf, the other party quickly believed Xiao Yi and the others.

The elf brought an unusually rough map and began to introduce it.

"If we can repel the undead we are defending, we can grab a natural danger that is easy to defend and difficult to attack!" The opponent pointed to a place on the map and said.

Xiao Yi looked at the topographic map and said, "Brother Jiang, release the unmanned reconnaissance aircraft and scout in the northeast direction!"

"Yes!" Jiang Yuntian replied.

Tian Wu and the elf watched Jiang Yuntian take out a palm-sized machine in surprise.

The machine was able to stretch out its wings, and then flew quickly to the northeast. Then Jiang Yuntian put the laptop in front of everyone.

Soon, the reconnaissance plane came to the natural danger location that the elf said, and Xiao Yi asked, "Is this what you said?"

"Yes!" The elf nodded in shock and replied, "We all call it the Gate of Hell!"

There are towering cliffs on both sides, and there is only about ten meters of space in the middle for people to pass through!

Really a good position to defend!

But at this time, all the skeletons around the gate of the ghost gate are densely packed.

"Okay, our goal is this ghost gate. Brother Jiang, make a battle plan based on the previous situation!" Xiao Yi ordered.