Joanna shook her head: "You want to entangle me here, let your companions outside break the formation from the outside, and save you out." This wishful thinking, I'm afraid you won't be able to hit it.

Why did I send my human friends out in the first place? I don't want them to intervene in the battle between us, and partly, it's to let them help me deal with the Red Flame Tiger thugs you left outside. ”

"Hahaha, just with those few humans? With a few powerful magic weapons in your hands, you dare to reach out to the noble Red Flame Tiger? ”

"What do we do?" Yu Xiaoyao was excited at this time, killing an eighth-order demonic beast as soon as he made a move, and he was still a noble Red Flame Tiger, and he was qualified to be proud of anyone.

Leng Fei said: "A large number of Red Flame Tigers are hiding in the hidden space, and they will not just come to watch the battle. ”

"How do you know?" Sima Xin said in surprise. Whether it is consciousness or perception, it can only detect the affairs of one space, and cannot help other spaces. Unless it is possible to break down a solid space barrier, but this is impossible.

Therefore, the hidden space of the hidden soldiers is regarded as the most secret sneak attack. It's just that to open up such a space, it is difficult to do it without the strength above the Holy Rank.

Even if there is a Holy Rank to help, there must also be a Holy Rank leading the team among the lurking personnel in order to successfully kill out of the hidden space.

Otherwise, if one is not operated properly, the space will be shattered, and everyone inside will be slashed into nothingness by the fierce power of space.

Moreover, no matter what battlefield it is, it is difficult to hide from the opponent by splitting such a large movement of space out of thin air. Therefore, although the space Tibetans are the most secretive, they are also the most difficult to achieve.

This law also applies to the Red Flame Tiger World. The Iron Law Family's ability to unknowingly open up a hidden space and quietly ambush around it is a manifestation of its strength.

"Murderous!" Leng Fei only replied with two words, and then shut up. The answer of just these two words immediately made everyone present look at Leng Fei with admiration.

We all know that people who have experienced too much killing not only have murderous aura on their bodies, but are also particularly sensitive to murderous aura. Murderous aura, strictly speaking, is the external manifestation of the ruthlessness in the heart and the intention to kill the other party, which is very ethereal, even a killer who is particularly sensitive to murderous aura can't say it.

And each killer's perception of murderous aura is not the same, some indicate that there are sudden goosebumps on the body, that is, there is murderous aura around, and the direction corresponding to goosebumps is the direction of murderous energy.

Some of them are suddenly eyelids or eyebrows that can't stop beating, and the direction of murderous energy is grasped by subconscious reactions.

The master of sensing murderous energy is often a sudden fluctuation of spiritual power in the body, and people who have reached this level have been able to control their own sense of murderous energy. Sometimes even the perception of murderous aura is used to confirm the safety of an unknown environment.

But no matter how sensitive he is to murderous aura, he will not be able to perceive murderous aura from another dimension. Space barriers are no joke. Leng Fei was able to perceive the murderous aura in the hidden space around him, what a keen feeling!

"Can you sense the presence of murderous aura?" Gavin Muki was a little incredulous, "Are you sure it's not other murderous aura?"

Leng Fei smiled faintly and did not speak. Yu Xiaoyao asked him curiously how he sensed it. Leng Fei told them that he had just moved in his heart, and that it was a wonderful feeling of the impending fierce battle, and that there were no enemies around them who could threaten them.

Then there may be only one: powerful enemies can only hide in hidden spaces, which is such a perfect concealment that they cannot be fathomed to their existence.

"What about you?" Sima Xin looked at Gu Tiancheng, "Leng Fei can even sense the threat in the hidden space, can you sense it?"

Gu Tiancheng shook his head: "I don't have the ability of Leng Fei, but I know that there is indeed a hidden space around us." Since none of us have opened up a secret space, it can only be opened up by the enemy. And it just so happens that there is indeed a strong enemy here. Then it is certain that the hidden space in front of them is what they brought.

Since he has worked hard to open up a secret space, of course, there is a purpose. Just now, Joanna opened the Moonlight Trace Array and fought with them in the array. I think that as long as the force in the hidden space can't help but rush out, it means that Joanna has the upper hand, and the enemy is forced to call for foreign help. ”

"Since you can't perceive it, then how do you know that there is a hidden space around you?" asked Sima Xin curiously.

Gu Tiancheng smiled, "Don't forget, I'm a master of the array." Of course, there is a space formation in the formation. I have been tinkering with the space formation a lot, and I naturally know all kinds of techniques. As long as there is an artificial space, there will inevitably be traces, and the master of the formation can hide the traces of others can't see it, but the one in front of him is obviously not in this list, and the hard-split space is not even disguised, such a hidden space in front of me, if I can't detect it, then I'm too sorry for my attainments in the formation. ”

"For you to say that, I want to study the formation. Yu Yaoyao pouted and said with some envy.

She just mentioned it casually, Sima Xin Ke took it seriously, and hurriedly said, "You'd better dispel this idea quickly." The formation is not a cultivation technique and combat skills, and there are too many twists and turns in it. I only followed it for a while, and then I gave up, it was really not that material.

It takes a brilliant mind to delve into it. You love to play so much, you must not be able to calm down and concentrate on research. Since you are destined to not be able to become everyone, why bother with that spirit? If you encounter any difficulties in the formation, can't you just ask Gu Tiancheng for help?"

Yu Xiaoyao stuck out his tongue, "That's it, then I'd better give up." ”

Gu Tiancheng knew that Sima Xin was telling the truth. The study of the formation is almost equivalent to the cutting-edge disciplines such as advanced mathematics and advanced physics in the previous life, and without a strong foundation, it is basically the difficulty of the heavenly book.

Gu Tiancheng also relied on the foundation of his previous life, coupled with Kai Rui's strength, so he dared to set foot in the formation field.

Thinking about the previous life, I was forced by the teacher to struggle for the college entrance examination, and I was easily admitted to the university, but I was stopped by advanced mathematics, and I was forced to study at night, and I was forced to gnaw calculus hard. It's a bit of a loss to think about.

However, this idea is Gu Tiancheng's unique magic weapon, and others can't learn it if they want to. For example, Sima Xin, Bing Xue is smart, but with the same formation book, Gu Tiancheng can chew it and digest it in one day. She couldn't study it thoroughly for a month.