Fu Dongchuan was noncommittal, but silently listened to Lin Feng's statement, and then his tone changed, and he said solemnly: "There are already a large number of monks gathered around the Yidao Gate, the big battle is about to break out, and the four great ancestors have also come out of the customs, and now they are making every effort to open the inner layer of the ancient tomb, once we get the ascension order, the group of monks outside will launch an offensive." ”

Lin Feng asked tentatively, "Are we going to fight to the death?"

Fu Dongchuan's expression was no different: "Before the help of the chief helmsman arrives, we must defend it." ”

Lin Feng nodded suddenly, Fu Dongchuan continued: "This valley is a place that we must defend in the future, you are the former disciple of the Great Ancestor, and you should share the heavy responsibility for the Yidaomen, and when you withdraw in the future, you will also be among the first batch of disciples to be taken away, the botanical medicine technique you have mastered, the Great Ancestor is very important, and after returning to the Yidaomen Helm in the future, it will definitely be of great benefit." ”

Lin Feng asked again, "What is there to defend this place?"

Fu Dongchuan raised his head: "You will know when the time comes, it won't be long before a big war breaks out, you just need to remember that all the monks who enter here will be killed!"

Lin Feng had no choice but to nod in agreement, Fu Dongchuan turned around suddenly, Zuihou glanced at Lin Feng, then stretched out his hand, and a huge array disk was driven under the ground, and then at the exit of the valley, an extremely powerful defensive shield was raised, which was a thousand times tighter than the few array stones that Lin Feng had set up before, even if Gao Yun came again this time, he would not be able to enter this place at all.

Lin Feng was completely trapped in the valley by the magic circle, but Fu Dongchuan turned into a retreat and drifted away, and the valley fell into complete calm, Lin Feng sat down boredly, ran the quenching dragon technique to heal his injuries, and then got up and cast all kinds of spells after the knot pill one by one in the valley to familiarize himself with them.

Half a month later, Lin Feng, who was in the valley, was meditating with his eyes closed to recuperate, a violent explosion came up from the ground, Lin Feng quickly opened his eyes, and the continuous tremor of the ground made him immediately think that the four ancestors of Yidaomen should have broken the inner layer of the ancient tomb, whether they could get the ascension order or not, they would definitely lose their mana, and the strong enemies from outside had been eyeing them, and this was the best time to attack Yidaomen.

Just thinking like this, a sound of fighting also came from a distance, the dense mana attack was clearly audible, the transfer of light and shadow was faintly visible, and the defensive magic array above the Yidao Gate also exerted its strongest light at this moment.

The voice came from all directions, Yidaomen was attacked by the enemy, and a large number of monks were gathered in all defensive positions, but although there were many monks outside, they were in the ethereal area, and in the case of not being able to fly away in the air, for the Yidaomen that was easy to defend and difficult to attack, it was undoubtedly a copper wall and an iron wall, and several groups of monks who rushed up in the early stage all died tragically under the siege of the monks inside Yidaomen.

Lin Feng was at the bottom of the valley, his divine sense was greatly restricted, and what he could see was only a corner of the scene, but from the moment the magic circle opened, from where he was, he could clearly see that the central formation where the Yidao Gate was located was directly above him at this time!

Lin Feng looked up at the sky, the air corridor leading to the outside of the Yidao Gate had been pulled out by the volley at this time, and the gate that entered the Yidao Gate had also drifted from the original ground position to the sky directly above, at this time, it happened to be above Lin Feng's head, and the aerial corridor connected to the portal was uprooted from its original position, and at this time it moved to the top of the defensive shield and straight into the sky!

From a distance, the aerial corridor of the Yidao Gate stood straight in the air at this time, piercing straight into the sky like a giant sword, and the hilt of the giant sword was the central formation of the defensive shield, and it was also the valley where Lin Feng was located!

The displacement of the air corridor not only cut off the passage for external monks to enter the Yidao Gate, but at this moment, this powerful defensive circle of the Yidao Gate had an amazing effect of attacking and killing the magic circle!

The giant sword-shaped aerial corridor is absorbing the vast spiritual energy from the underground spiritual veins, and when the spiritual energy is fully accumulated, the originally plain aerial corridor will be arbitrarily slashed from a vertical position in any direction, and the large group of monks who are dense around the Yidao Gate will die tragically in an instant in front of the giant sword transformed by this magic circle!

The one who urged this giant sword to attack was Fu Dongchuan, the head of the Yidaomen, who sat in the central palace and used the magic trick to control everything, Lin Feng was under the valley, and he could clearly see his figure, and the group of monks who attacked the Yidaomen, without the support of the aura, could neither use the escape technique to dodge, nor could they escape with the help of the original aerial corridor, completely exposed to the isolated and helpless realm, and were frequently killed by this huge sword of the magic circle!

At this moment, Lin Feng finally thought of the origin of this magic circle, it was slightly mentioned in the Bailing Bamboo Slip, and there was also a relevant description in the Xuanji Treasure Book, but the inner mysteries and heavenly machines were undoubtedly extremely complex and vast, so that the vast and profound Xuanji Treasure Book could only describe it as a peek at the leopard, and it could not explain all the true meaning in detail at all.

This magic circle, created by monks in ancient times, integrates attack and defense in one, it is called "Diyi Tianjianzhen"!

There can be many kinds of changes in the "Earth Instrument Tianjianzhen", each of which is adapted to local conditions according to the distribution of the underground spiritual veins and the surrounding environment, so as to exert the strongest effect. The most ingenious thing about this Yidaomen is its camouflage, the only way to enter and exit Yidaomen, which is the so-called aerial Yongdao, is actually the biggest hidden killing machine!

The most terrifying thing is that Yidaomen is heavily wrapped in the ethereal zone, but there is a spiritual vein in its underground, which can just maintain the operation of the Earth Instrument Tianjianzhen, and a large number of monks besiege it, and there is only one dead end at this time!

The battle lasted for half an hour, and the corpses were all over the outside, and a large group of monks fled one after another, but it was still difficult to escape the pursuit of the giant sword, the length of the giant sword was a hundred miles, and under the volley, countless monks flew in an instant, and the sword shadow also collapsed in an instant, but the underground aura continued to gather, and soon there would be a giant sword standing straight again, and then Fu Dongchuan controlled it to kill in all directions!

Under the threat of the giant sword, there was no hiding place in the outer area, only near the ground position close to the defensive shield of the Yidao Gate, was the dead end of the Heavenly Sword, and it was the place where the Heavenly Sword could not attack, and it was in these positions that a large group of surviving monks gathered and launched a crazy offensive against the defensive shield of the Yidao Gate.

The position of the ground formation, there are exactly eight, according to the east, west, north and south positive distribution, each with a quantile in the middle, Lin Feng is in the valley, is the center of all the positions, from here you can see the offensive and defensive situation of all the positions, but the image is transmitted through the sky above the valley, Lin Feng can only watch from a distance, and can not be close or participate in the battle.