Hearing tianwu's words, Xiao Yi always felt a little twisted. He continued to ask, "you all said that the world will come to Tianxuan from time to time. The undead should have done the same when it came to Tianxuan last time. Don't you know?"

Tianwu shook his head and replied, "I don't know. You are the first Tianxuan I've seen."

Xiao Yi frowned and thought.

If the undead have done this before and the front line has not found it, does it mean that the former survivors have successfully resisted the undead?

But what about the island steles and islands infected by death?

And the evil organizations in the indigenous dynasties are all related to the undead, which shows that the undead did invade the rear.

So there's 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 the world, but when the survivors left the world, the wormhole of the undead disappeared with the departure of the survivors.

This led to the undead invading the rear, but there was no way to invade the rear on a large scale!

"So, when the last survivor came to the test place of the world battlefield, most people's level should be close to SSS level!" Xiao Yi said secretly.

If not everyone reaches SSS level, the undead will have enough time to operate the affairs behind the invasion.

This year's survivors have Xiao Yi, a freak with a system, so his level rises too fast, leading to the opening of the world battlefield in advance, and other people's levels have not kept up.

In this way, the time of the world battlefield will be prolonged, and the undead will have enough time to complete the massive invasion of the rear.

According to the current situation, if Xiao Yi did not provide advanced weapons to all alliances, the undead would have completed the invasion.

After figuring out these things, Xiao Yi was a little helpless, as if he had provided an opportunity for the undead.

"In that case, it will completely solve the undead in this world!" Xiao Yi thought so.

Thinking of this, Xiao Yi asked tianwu, "chief tianwu, what's the situation on the front line now?"

"Always in a stalemate!" Tianwu immediately replied, "if you didn't rush through the wormhole, we're still in a stalemate!"

Xiao Yi nodded and then said, "you mean that the strength difference between the two sides is not big. As long as there are fresh troops to join in, the balance of victory will tilt to us, right?"

"It should be!" Tianwu replied.

Hearing the word "should", Xiao Yi twitched his lips, but he couldn't ask tianwu to give a definite statement too harshly.

After all, they have been guarding this line of defense. He doesn't know how other lines of defense are at present!

"In that case, let's start blowing the horn of counter attack from here!" Xiao Yi said in a deep voice.

Tianwu asked in surprise, "are you willing to help us attack the undead?"

Tianwu knows that the chosen ones will leave after coming for a period of time. They can ignore the war here and stay out of it!

But Xiao Yi said so, which really surprised tianwu!

Xiao Yi nodded and replied, "also help ourselves! These undead people have been harassing our survivors, which makes us very annoyed."

"Well, with the help of your powerful electors, we will be able to defeat the undead!" Tianwu said excitedly.

Xiao Yi replied in a deep voice, "this undead family is not simple. Don't be careless!"

Tianwu nodded and said, "let me contact the team of the nearby defense line first. We'd better attack together and defeat the other party at one stroke."

"OK, you go!" Xiao Yi replied.

Tianwu said hello to Xuanqi and left.

Xiao Yigang just said that the undead are not simple. It's not because they think they are powerful, but because there are people behind them to help them.

Just last weekend, the stele just reminded that the level and offensive of the undead were upgraded.

If you find yourself leading people to the front line and want to get rid of the undead, don't the people behind the scenes immediately promote the undead to invincible?

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

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

Xiao Yi nodded slightly and then said what he speculated, Finally, he said: "if the undead are allowed to attack the survival alliance, there will always be an unstoppable situation, and everyone's level has not been upgraded to SSS level, which gives the undead enough time to invade the human rear. If it's time for a full-scale invasion, it's difficult for us to be alone."

Jiang Yuntian nodded.

"What's more, I still caused this situation. Naturally, I have to bear part of the responsibility!" Xiao Yi continued with a smile.

"Well, that's OK. Just take advantage of this huge battlefield to train our Alliance Army!" Jiang Yuntian replied.

Xiao Yi told, "safety first!"

"I see!"

Soon, tianwu came back, and he was followed by an elf.

Since it's an elf, it's easy to talk. Let Phyllis of the elf family communicate with each other.

Seeing that the side guarded by the dragon people really beat back the undead people, coupled with the introduction of Felice, who is also an elf family, the other party soon believed Xiao Yi.

The elf brought a very rough map and began to introduce it.

"If we can beat back the undead in our defense, we can grab a natural danger that is easy to defend and difficult to attack!" The other Party pointed to a place on the map and said.

Xiao Yi looked at the topographic map and said, "brother Jiang, release the unmanned reconnaissance plane and investigate in the northeast!"

"Yes!" Jiang Yuntian replied.

Tianwu and the spirit watched Jiang Yuntian take out a palm sized machine in surprise.

The machine could stretch out its wings and fly to the Northeast quickly. Then Jiang Yuntian put the laptop in front of everyone.

Soon, the reconnaissance plane came to the natural dangerous position that the Spirit said. Xiao Yi asked, "is that what you said?"

"Yes!" The elf nodded in shock and replied, "we all call it the gate of hell!"

On both sides are towering cliffs, and only about ten meters of space in the middle can be passed through!

It's really a good defensive position!

But at this time, there were all skeletons around the ghost gate.

"Well, our goal is to make a battle plan according to the situation ahead, brother Jiang!" Xiao Yi ordered.