Having made up their minds, Lin Feng and the others naturally went straight to Sky City without hesitation.

The city in the sky is still so lively, so towering into the clouds, standing quietly there, as if it originally belonged there, there is nothing strange about it.

Sky City, except that there was no formation on the first layer, the formations of the second, third, and fourth layers had all been broken by Lin Feng and the others.

Without making any stops, Lin Feng and the others came directly to the fourth layer of Sky City.

"We're going to start entering the fifth layer, are you all ready?" At this time, Lin Feng didn't forget to remind everyone, but it seemed that this sentence was a bit redundant.

"Lin Feng, it suddenly occurred to me that we don't have Selia here now, and we can't find the heart of the formation, how can we break the formation?" At this critical moment, Mo Yu suddenly thought of a serious question and asked.

Hearing Mo Yu's inquiry, Camon and Pete thought of this question and looked at Lin Feng, they had always relied on Selia's perception to find the heart of the formation before, but now that Selia was not there, this simple question was now complicated.

Although Bi Yalan didn't know these things very well later, she still set her eyes on Lin Feng, hoping to get some answers.

When everyone's eyes were looking at Lin Feng, Lin Feng didn't seem flustered at all, obviously confident, it seemed that he had thought of this problem a long time ago, and it seemed that it had been solved.

After giving up, Lin Feng explained lightly: "Actually, I have already thought of this, so when I went to the exchange, I went to find Selia by the way and asked her about the way to find the heart of the formation. ”

"Looks like you already know what to do?" Mo Yu asked suspiciously.

"Hmm!" Lin Feng nodded and replied affirmatively.

"How can I find the heart of the formation? Let's hear it. At this time, Carmon couldn't help but ask curiously.

"Celestia taught me how to sense the heart of the formation, so I should be able to find the heart of the formation, but I haven't tried it, and I'm not sure that I will succeed!"

When Seria taught Lin Feng at the beginning, he said that it was a little difficult to learn this kind of perception, and there were really not many people who could achieve it as quickly as Lin Feng, so it might not be very stable, and he hadn't tried it himself, so it was a little rusty to use, and it was possible to fail.

Lin Feng naturally didn't think that he could succeed once, even a genius would have times when he failed, not to mention, Lin Feng was not a genius in cultivation, but his mind was more flexible.

"Now that the problem is solved, is it time for us to leave?" Just when a few people were discussing what they were talking about, Pete on the side suddenly urged.

"Pete is right, let's get down to business first, and if everyone has no problems, then we'll set off and head to the fifth floor!"

Lin Feng inquired again, and after receiving a positive answer, he took the lead in walking towards the portal on the fifth floor.

'Huh'

After passing through the portal, Lin Feng and the others instantly came to a place on the fifth layer.

There was no difference from the fourth layer in front, and the five two-person guards rushed towards Lin Feng and the others as soon as they appeared.

"It's a piece of cake to clean up these dragonman guards now!" Carmon sneered disdainfully, and with a flash of his body, he rushed directly towards the five dragonmen.

As soon as the two sides came into contact, a fierce battle began, and Carmon was one against five, not falling behind at all, and after a while, the five dragonmen disappeared, leaving only Carmon alone, and clapped his hands proudly.

"Now that it's solved, follow me!" Lin Feng said lightly, then expanded his perception and began to look for the fifth layer of the formation center.

The dragon man guards are now not the slightest threat to Lin Feng and the others, in the process of searching, except for Lin Feng, the rest of the people are all taking turns, and each time only one person is used to directly solve the blocking dragon man guards.

After several perception failures, Lin Feng also began to have some experience in the use of perception, and failures were not as frequent as they were at the beginning.

After some searching, Lin Feng finally grasped the specific location of the fifth layer of the formation heart.

'Huh'

At a certain location on the fifth layer of Sky City, Lin Feng's body pierced out of the wall, followed by Bi Yalan, Mo Yu, Carmon, and Pete.

"Lin Feng, are you sure that the heart of the formation is here?" Looking at this place, it is no different from other places, Biaran asked suspiciously.

"After so many failures just now, you let me be sure, I'm really not sure, but I'm 90% sure, the heart of the formation is here." Lin Feng said as he pointed to the center of the hall.

Lin Feng said this, and then Bi Yalan and the others naturally didn't suspect anything, and the four of them attacked the place Lin Feng was pointing at just now.

As the name suggests, the heart of the formation is the core of a formation, and if the heart of the formation is broken, the formation will naturally be broken, so if the center of the formation is not attacked, it is in a state of invisibility, and it cannot be seen with the naked eye.

If it weren't for the fact that he happened to encounter Celiya and found out all this with his perception, I'm afraid that Lin Feng and the others didn't know it now, and they were also burying their heads in the sky city and climbing the sky city, and they might have died in the hands of those Sky City guards because of exhaustion.

'Bang'

A muffled sound came.

Immediately after, a huge fiery red gem slowly emerged and appeared in front of Lin Feng and the others.

"You really found it by Lin Feng, but this gem seems to be bigger and darker than the previous ones!" Mo Yu could see the difference in this red gem at a glance.

"It seems that the guards here are a little stronger, and besides, this ruby array is probably even more difficult to break." Through these, Lin Feng said speculatively.

"I think it's very likely!" Hearing Lin Feng's words, Bi Yalan on the side also echoed.

However, before she could continue, a loud roar interrupted Bialan's words, and a huge dragonman about twice the size of an ordinary dragonman appeared in front of several people.

"I didn't expect that there are still people in the Arad Continent who can find the formation heart laid by the city lord of Sky City, it seems that you are very unusual, if I guessed correctly, the fourth layer of Minius was killed by you!"

The huge two of them said in a mouthful of words.

"It seems that you are the commander of this fifth layer, right, what about your subordinates? Let them come out, lest we be overnumbered and few of us are bullied. Carmon replied unceremoniously.

"That's right, I'm the commander of the fifth layer and the lord of the Dragonman Tower in Sky City, Rucas. It's useless to call out that garbage, I'll be enough to deal with you alone. ”

As soon as Lucas's words were finished, his body exploded directly, and judging by its speed, it didn't seem to be affected in the slightest by its huge size.

An inevitable fierce battle has begun!