The blood-colored stones, the blood-colored grass, the blood-colored ground, the blood-colored sky, even the green grass was covered with a layer of blood, and everything in the Demon Soul Battlefield was the same as when Ye Zhen first came in five years ago.

However, soon, Ye Zhen discovered the change!

That's the Demon Soul Soldiers, the Demon Soul Legion!

Five years ago, not long after Ye Zhen entered the Demon Soul Battlefield, he encountered Demon Soul soldiers, and it didn't take long for him to discover various Demon Soul Legions of different scales.

But now, it has been half an hour since Ye Zhen entered the Demon Soul Battlefield, flying more than a thousand miles, not to mention the Demon Soul Legion, and he didn't even see a single Demon Soul soldier.

Five years ago, there were still Demon Soul soldiers in the Demon Soul Battlefield, but now, it is more like the Dead Domain!

Except for the two living creatures, Ye Zhen and the Cloud Wing Tiger King Kitten, there is not the slightest breath of life.

"These changes may be caused by the fact that the Battle Spirit Blood Banner has not returned......."

This is the only reasonable guess that Ye Zhen can make, Ye Zhen also wants to hunt the Demon Soul Legion to obtain the Demon Soul Blood Crystal to replenish the consumption of the Battle Soul Blood Banner, and now it seems that this idea has failed.

After wandering around the Demon Soul Battlefield for more than an hour without discovering anything, Ye Zhen went straight to the very center of the Demon Soul Battlefield - the Demon Soul Palace.

The Demon Soul Hall is as majestic as ever, simple and majestic, and the gates of the Eight Demon Soul Hall are distributed in all directions, which looks extremely bulky.

Ye Zhen was a little curious, how did such a bulky thing become a so-called war fortress?

The gate of the Demon Soul Hall is still closed, under normal circumstances, to open the door of the Demon Soul Palace, it takes 10,000 Demon Soul Blood Crystals, and the Demon Soul Blood Crystal is a guarantee for passage in the Demon Soul Palace.

Now, Ye Zhen does not have a Demon Soul Blood Crystal, but he does have a Battle Soul Blood Banner.

According to the information in the original imprint in the Battle Soul Blood Banner, the Battle Soul Blood Banner is the control center of the Demon Soul Palace, as long as the Battle Soul Blood Banner can completely recognize the master, entering and exiting the Demon Soul Hall is like entering a no-man's land.

In the next moment, the Battle Soul Blood Banner flew out of Ye Zhen's arms, and a blood light flew out, and the door of the Demon Soul Hall creaked open, allowing Ye Zhen to slowly step in.

A brilliant blood-colored passage leads straight into the distance, seemingly endless, and a blood-colored starry sky on both sides of the passage is like a dream.

According to previous experience, as long as the warrior walked along this blood-colored passage and stepped left and right at will, he would enter one room after another and start to hit the luck.

In fact, according to the information in the Origin Imprint of the Battle Soul Blood Banner, this brilliant blood-colored channel is actually an extremely powerful phantom array, once it is fully activated, not to mention the powerhouse of the Casting Vein Realm, even the king of the Kaifu Realm, will also be affected by this blood-colored starry sky phantom array.

Because no one controls the Demon Soul Palace, this blood-colored starry sky phantom array is in a state of readiness, otherwise, no matter how many Spirit Attracting Realm martial artists in the Black Dragon Domain fill in, I am afraid that they will not be able to explore this Demon Soul Palace.

Turning left at will, Ye Zhen stepped towards the blood-colored starry sky in one step, and his figure disappeared into this blood-colored channel.

A single door three meters high and two meters wide appeared in front of Ye Zhen's eyes again, and there was a blood crystal slot on the left side of the door, which was the place where the room was opened and the demon soul blood crystal was placed.

As the Battle Soul Blood Flag floating in front of Ye Zhen shot out a bloody light, the door automatically opened in front of Ye Zhen, and Ye Zhen stepped in again.

There is still nothing that can be seen in the single room on the first floor, however, there is a teleportation channel in this room, but Ye Zhen did not step into the teleportation channel, but walked straight to another single door, blood flew out, the door opened, and Ye Zhen entered to explore again.

After just a glance in the next room, the blood light flashed on the Battle Spirit Blood Flag, and Ye Zhen stepped into another room again.

"An hour!"

"I only have one time, otherwise, I will lose all my efforts, or rather, I will start to hit the luck endlessly......." With a wry smile, Ye Zhen quickened his pace.

Ye Zhen's search room by room is actually for a reason.

It's not that Ye Zhen wants to sweep away the treasures that may exist in the Demon Soul Palace, in fact, in the Five Nations Conference, the treasures that may be found in the Demon Soul Hall have always been the rewards issued by the major empires to the exploration martial artists, and the sect does not ask for it.

The treasures, cheats, and martial arts found in the various rooms of the Demon Soul Hall are actually mostly suitable for the martial artists of the Spirit Attraction Realm or the Spirit Transformation Realm, and once the cultivation breaks through to the Spirit Transformation Realm, the treasures in the various rooms here are basically useless.

The main goal of each country is still the blood banner of the war spirit.

Then again, if Ye Zhen wants to sweep the treasures in the Demon Soul Palace, it is very simple - when Ye Zhen completely controls the Demon Soul Hall through the Battle Soul Blood Banner, Ye Zhen wants to get the remaining treasures in the Demon Soul Palace, which is just a matter of thought.

The real reason for Ye Zhen's exploration of room by room is to find the Cardinal Hall!

The Demon Soul Hall is the mobile fortress of the ancient demon army, the place where the senior generals deal with the military aircraft, and the most important place is the Shuai Hall on the ninth floor, which is the place where the generals deliberate, and the battle soul blood flag hangs there most of the time.

But in addition to the Council Shuai Palace, there is also an extremely important place, that is, the Cardinal Hall that Ye Zhen is looking for at this time.

In terms of importance, the Hall of Cardinals is several levels more important than the Hall of Councilsmen.

Because the Cardinal Hall is the center that controls the entire Demon Soul Palace, as long as you hold the Battle Soul Blood Banner and brand the Divine Soul Brand in the Cardinal Hall, you can control the Cardinal Hall.

On the other hand, if the Cardinal's Hall is destroyed, the entire Demon Soul Hall will be paralyzed and turned into waste.

As the top priority of the Demon Soul Palace, the Cardinal Hall has the most powerful formation protection in the Demon Soul Palace, not to mention the most powerful defensive secret method - that is, moving the direction.

Every hour that passes, the Cardinal's Hall will automatically change its position under the operation of the formation, and the conversion range will be in any of the more than 1,000 rooms on the ninth floor of the Demon Soul Palace.

Maybe in the middle of the first layer, maybe in the ninth, maybe in the fifth.......

In this case, if the enemy gets the information in the Demon Soul Palace, even if he reluctantly breaks in, it will be outdated.

As long as the Cardinal's Hall is not lost, it can be dealt with calmly.

What Ye Zhen needs to do now is to find the Cardinal Hall within an hour, otherwise, after an hour, the Cardinal Hall will change its direction and let Ye Zhen find it again.

The only thing Ye Zhen could do was to use a stupid method to quickly find them one by one.

Fortunately, it was the Battle Soul Blood Banner that opened the door, and if it was opened with the Demon Soul Blood Crystal, it would not be enough for Ye Zhen to slaughter a large army of 100,000 people.

After searching for them one after another, Ye Zhen can occasionally gain something.

Lower-grade treasure armor, the low-grade martial arts of the ground level, I have found several copies, but the middle-grade treasure armor like the Black Wind Treasure Armor has never been found again.

Even though Ye Zhen used a stupid method, things did not go as smoothly as Ye Zhen imagined.

In the blink of an eye, one hour, two hours, three hours, and five hours passed, and Ye Zhen had found the fifth wheel from the first layer of the Demon Soul Hall to the ninth layer, but he still hadn't found the Cardinal Hall.

Even, Ye Zhen marked every room he searched, but it was still useless.

Soon, Ye Zhen found the reason!

Exchange!

Many of the rooms in the Demon Soul Hall are actually interconnected. Some rooms have two doors or even more than three, and the next connected room is still the same.

The entire Demon Soul Hall was like a large labyrinth, and every time Ye Zhen searched, he could find unmarked rooms.

Among them, there are two rooms with doors and passages, at least five hundred, and three passages, there are more than two hundred, if this is counted, there are tens of millions of changes in this room, Ye Zhenxiu wants to find them all one by one.

Fortunately, the total number of rooms is only more than 1,600, if there are four or five thousand rooms in this room, Ye Zhen will really cry and faint.

found out the reason, but there was no good solution, Ye Zhen could only use the stupidest method - hit the luck!

Look for it in these more than 1,000 rooms over and over again, and try your luck!

Stupid methods sometimes have their own stupid methods, and after half a day, as Ye Zhen stepped into an ordinary door, the sky suddenly swirled, as if he had entered an extraterritorial starry sky.

Inside, there is a blood-colored brilliance everywhere, and under the blood-colored brilliance are inscribed strange patterns, complicated and abnormal formation bases, formation operation routes, ring ring arrays, if you look closely, the formation route can see Ye Zhen dizzy.

At this time, only a few formation routes had blood light flowing slowly, and it was obvious that the formation was only partially activated.

However, the most eye-catching thing was the blood-colored crystal platform in the middle of the starry sky formation line, and the mysterious blood light flashed from above from time to time.

If you look closely, you will find that in this starry sky formation, the final end point of all the lines, or the starting point of all the formation lines, is concentrated on this blood-colored crystal platform.

This blood-colored crystal platform is the control center of this Demon Soul Palace.

According to the information in the Origin Brand of the Battle Soul Blood Banner, as long as the Divine Soul Brand is left in, you can control the entire Demon Soul Palace, a war fortress.

Walking forward, Ye Zhen followed the method left in the origin imprint of the Battle Soul Blood Banner, and with a stroke of divine thought, a bloody light shot out from the Battle Soul Blood Flag, which suddenly enveloped the blood-colored crystal platform.

The blood-colored crystal platform, which was still like a dead thing, seemed to come to life in an instant when it was shrouded in the blood light of the Battle Spirit Blood Flag.

The majestic divine soul fluctuated from Ye Zhen's body suddenly, and an invisible and substantial divine soul imprint flew steeply towards the blood-colored crystal platform, falling in an instant!

Airplanes!

Ye Zhen only felt that his soul trembled slightly, and an extremely strange feeling suddenly appeared in his heart.

In the blink of an eye, the distribution map of the 1,608 rooms in the entire Demon Soul Palace, the situation in each room, all appeared in Ye Zhen's mind, and the role of every passage and every formation appeared in Ye Zhen's mind.

"It's so easy to brand a successful .......," Ye Zhen was a little surprised.

But at the moment when Ye Zhen was overjoyed, a strange change occurred.

The entire blood-colored crystal platform was full of blood-colored light, and all the blood-colored brilliance rushed towards the blood-colored crystal platform in an instant, and almost at the same time, on the demon soul battlefield outside the Demon Soul Palace, one after another blood-colored brilliance also rose from all directions in the Demon Soul Battlefield, and rushed towards the surroundings of the Demon Soul Hall independently.

In an instant, the blood-colored brilliance like the sea gathered around the Demon Soul Hall!

Wow!

An extremely terrifying blood-colored vortex was formed steeply, and it exploded in an instant!

In the cardinal's hall, Ye Zhen was also stunned!!

Because through the blood-colored crystal platform, Ye Zhen knew everything inside and outside the Demon Soul Palace!

"What's going on?"