As soon as he stepped into the second floor, Zhou Su felt the difference between here and outside.

The first is that the buildings here are much better than those outside, and at the same time, they don't want to be as smoky as outside, most of the demons are either challenging others or on the way to challenge others, and they are basically working hard to cultivate. At their level, as long as it is possible to break through to the 7th order, their race and their lives will be greatly changed, so their sense of urgency for time is far stronger than those guys outside.

Secondly, there are many more formations in this than outside, and the same power is also a lot greater, Zhou Su saw many formations at first sight, among which the most powerful formation Zhou Su conservatively estimated that even a 7th-order monk would be difficult to break through for a while.

What a fortune!

Zhou Su sighed in his heart, and at the same time, he was more convinced that there must be good things here, and it was not ordinarily good, otherwise there would be no need to arrange such a powerful formation, and there was more than one such formation.

Zhou Su didn't stay in place for too long, but quickly rushed towards the third floor of the camp.

The second level of the camp is much smaller than the first, but the diameter of the second to third levels is also 3 kilometers.

Because the buildings here are relatively neatly built, it didn't take much time for Zhou Su to cross the second floor, and it didn't take long for him to come to the entrance of the second and third floors.

It is said to be the third floor, but it is actually an underground castle built in the deepest part.

The castle is huge, tens of meters high and 500 meters wide, and you can touch the stalactites above your head from the highest point of this castle.

This underground castle is built with black yao stone, and each obsidian is engraved with a formation pattern, the underground castle built with black yao stone, it itself has an 8-order defense, and it also comes with other formations of the 8th order, this underground castle itself is an extremely precious treasure.

Not to mention, in addition to the formation of this castle itself, there were several other formations that were not inferior to his own formation.

Looking at the underground castle in front of him, Zhou Su could be completely sure that there must be extremely precious treasures here, otherwise the demon clan would not have spent such a huge price to build such an unbreakable and powerful formation!

Now, Zhou Su doesn't care so much about hunting demons to earn points, if he can win the treasure that the demons are exploring here, no matter what, it is at least much more valuable than the points that Zhou Su earned by killing most of the demons here.

Thinking like this, Zhou Su suddenly discovered one thing, the defense here is far more powerful than the information obtained before, I am afraid that there are more than several 7th-order demons here, such a treasure and there is also a royal princess here, and it is also a princess who is very likely to win the throne, so the guards here are more than as simple as they knew before.

It is conservatively estimated that there will be at least one Rank 9 Demon Saint here, who will be responsible for protecting the safety of their Princess Highness.

Thinking of this, Zhou Su's brows furrowed slightly, it seems that the rarity of the treasures here will be much rarer and more powerful than he thought before, plus there is at least one 9th-order demon saint hidden in the shadows here, now it seems that this matter is a bit difficult to do!

But it's just a little difficult to do, which can make Zhou Su feel some trouble.

Zhou Su has explored many secret treasures before, and he has encountered far more troubles than now, but he still came step by step, Zhou Su already has enough experience in exploring secret treasures, as long as he is careful, he will not capsize, not to mention that there is Long Feifei's protector outside this world.

Thinking of Long Feifei, Zhou Su looked towards a void with a happy smile on his face.

The gate of this castle is closed, and there is no place to enter it around, and the only way to enter it is to climb over the walls that are tens of meters high.

Wanting to enter it silently is extremely difficult for most people.

First of all, if you want to enter this castle, you have to pass through the three-layer defensive formation, and if there is a mistake in any of them, you will be immediately attacked by the formation, and it will alarm the strong people sitting inside, even if it is a 9th-order demon saint, I am afraid that there will only be temporary shelter at that time.

If you want to not alarm the inside, only the purple 9-striped formation mage can be dispatched, but this is not the kind of ordinary three-layer formation, but a composite type of multiple formations, even if the formation mage of this level wants to enter, it is extremely difficult, and the time consumed outside alone is enough for the people inside to pack all the things and take them away.

But this was still very simple for Zhou Su, a fifth-order array mage of the Immortal Product, but it also made Zhou Su look at it twice before he found the perfect way to enter.

After reaching the flaw in this formation, Zhou Su did not stay long, and immediately flew into the castle.

Now the sooner you go in, the better, lest you go in late and lose the chance to drink soup.

After Zhou Su turned over and entered the castle, this person was immediately slightly shocked by the luxurious decoration inside, the flowers and grasses, pavilions and pavilions in it are all extremely rare in the outside world, but here those medicinal materials and treasures that are worthy of the 6th order demon emperor to fight in the outside world are no different from the weedy floor here.

Ordinary people may not be able to see it, but Zhou Su can see it at a glance, although these things seem to be scattered everywhere at random, but they are connected to each other to form an 8th-order large array, if you are attracted by these things in front of you and go to pick them, it will touch this 8th-order formation, and the monks whose strength is below the 6th order will be bombarded with a blow and there will be no ashes left.

Zhou Su thought about himself again, most of the treasures he had obtained before were directly used for cultivation, and it was not enough to improve his cultivation and supply cultivation, let alone raise them as weeds like here, it was simply inhumane!

After a little emotion in his heart, Zhou Su's expression also returned to normal, he came here to obtain the peerless treasures hidden by the demons, but he didn't come to pick these 'weeds'.

However, in this huge castle, Zhou Su didn't see anyone walking around from his side, obviously this should be a relatively remote corner of the castle.

In order not to get lost and to be able to quickly find the Eastern Girl Department he needed, Zhou Su unfolded his divine sense and searched in this huge castle.

As soon as Zhou Su's divine sense unfolded, he noticed the powerful guys in the castle, and they were all in the castle hall at this time.