"Master, this lich is bragging, I have searched the whole third floor, the ceiling mezzanine, the floor below, and the surrounding walls and pillars...... No hidden pathways have been found at all! ”

Erin, who was in charge of all-round detection and eavesdropping intelligence, flew to Xia's side, hugged her arm and said:

"You have to trust me."

"Of course I believe you, because you can't lie."

Xia touched her head and swept the black-clothed little Lori with the corner of her eye.

And the latter just sucked his fingers and looked at this side enviously, without a trace of weakness on his face.

"But Fei Nanxi's words are not necessarily wrong."

She felt an inexplicable sadness in her heart, bit her lip lightly and put her hand down:

"The mechanism in the ancient ruins is very special, and sometimes places that are obviously impossible to pass through will suddenly become a big road; What looks like a wide field may be completely closed off the next moment. It's not just about inspecting the inside of the floors and walls. ”

"Mate, do you want to challenge the puzzle?"

The Lich "clicked" its teeth:

"Try to find out where this hidden area is, I don't think you can find it with you now."

"Try it, just try it."

Natsu stood up from the rock unconvinced.

Her body didn't seem to have recovered, and this time the movement was too violent, her legs trembled, and she almost fell to the ground.

"Sister, be careful!"

Al came from the side and held her up.

Catwoman Polly was no slower than hers, and she grabbed her other arm and stuck out her tongue at Al.

Polly had always wanted to be with this benefactor's sister before, but there was always no shortage of people around Xia, and she was not very sociable, so she had to watch from the side, and this time she finally got the opportunity.

"You really don't know how to pity at all. Stupid wolf. ”

Wendy watched Natsu rub her legs and said to the werewolf princess:

"You were the only one of all the people just now, and we were very measured...... You see, now she can't even stand on her feet. ”

"You're embarrassed to say, stinky vampire! It's because you keep sucking her blood that makes her so weak. ”

Delia responded without showing weakness:

"I'm just helping her work on muscles that she can't normally exercise. Just live the day and it will be fine. ”

"One day, tsk......"

Wendy sighed:

"What a rude and savage fellow...... And a. ”

The two of them are not mentioning each other here, and Xia over there has already launched a search.

"Since such an old building can stand, it is said that the structure everywhere is very reasonable, so since it is separated from the top and bottom of the first, second and third floors, it is unlikely that there are mechanisms on the ceiling."

She stared at the high dome for a moment, first ruling it out.

"These pillars are load-bearing, and Irene's drilled into each one of them. All of them are solid, and there is little space inside, so the chances of having a hidden road are extremely low. ”

The pillar is somewhat suspicious, but it is not the focus of the review, so it can be put aside first.

"The floor is the most suspicious...... However, Erin flew down for hundreds of meters without seeing space, so even if there was a passage, it might be directly connected to the outside, not inside the ruins. ”

I thought about it for a long time. She didn't find any plausible assumptions, so she simply found a place to sit down. While recovering his strength, he pondered where the fourth floor of the ruins was.

"The Great Tomb that the Lich said must be underground, and that shouldn't be wrong."

"But the key is the fourth layer...... If you can't find it, you won't be able to meet that subspecies demon boss even if you practice level 50 here. ”

"How's that, did you think of it?"

The lich "clicked" and laughed:

"Your experience should be enough for the average person, but your thinking is not even as broad as mine, the undead, I guess you can't figure out how it works......"

Heard the word principle. There seemed to be a light in Xia's mind, which she was thinking hard.

She vaguely felt that this word had something to do with the hidden fourth dimension, but she couldn't think of where the intersection of the two was.

"Looks like I was wrong."

The lich suddenly focused on Catwoman and the observer named Cathy:

"There seem to be some people in your team who haven't reached the threshold yet, so we won't be able to enter the fourth layer."

"The threshold? What are you referring to. ”

Xia asked suspiciously.

She then looked up and followed the lich's line of sight, where she saw Polly and Cathy fighting a monster that had crept up on the camp. Cathy's current weapon is the same as Polly's, both are short knives; However, Polly is naturally good at using close weapons, and she can only handle them.

"Only the two of them are the lowest, master."

The little Lori in black discovers the difference between them and the others.

"I've always been reluctant to use a short-armed Polly in group fights, and I rarely let her play freely, and Cathy is too timid...... Therefore, according to the rules of experience point distribution, these two people get the least benefit. ”

She immediately understood the meaning of the Lich's words.

"That's right!"

She suddenly jumped in surprise:

"It turns out that the key to the fourth layer is the teleporter!"

"Hehe, it looks like I'm still underestimating you, mate."

The lich was pleased and said:

"I didn't mean to remind you...... This shows that you are now very good at analysis and thinking, and you have made great progress compared to the immature state you were a few years ago, and you can completely take charge of yourself. ”

"It's not that exaggerated."

After figuring out this joint, Xia looked around again, and this time he found a lot of problems.

First of all, the appearance of those monsters is not completely random, but concentrated in a few points.

This is related to the fact that there are a lot of monsters in some areas, and there are almost no monsters in some areas, because the monsters tend to flow outward one by one, and they never appear scattered.

"Fei Nanxi, you deliberately built the ice cage somewhere, and told everyone to pile up the debris on it as much as possible. Did you discover the pattern of monsters a long time ago? This kind of action is specifically taken to suppress the teleportation site. ”

"Suppression is a clever word."

The lich gestured:

"Space magic is a very well-developed theoretical system, in which the slightest deviation is not allowed; Imagine if there is a problem with the transmission coordinates or volume estimation, it is easy to get stuck or cut in half. ”

"In this case, unless the other party doesn't care about the life and death of these monsters at all, they won't rush to teleport over when the waypoint is blocked. Because it doesn't conform to the laws of teleportation at all. ”

"Fei Nanxi, I remember that there is indeed a concept of random teleportation in space magic, but the terrain may change constantly, such as mountain peaks and rivers will collapse or change lanes; At this time, what will happen if the originally set coordinates become a boulder and the person teleports inside? ”

Natsu thought of a question that is famous in magical novels:

"And what happens if it's not a living thing that's being teleported, but a stone that hits another stone?"

"Three scenarios."

The lich stretched out three phalanges:

"Due to the peculiarities of the concept of spatial teleportation, three different conclusions arise. First. Teleporting an object to the location of another object without being affected by the spell or teleportation process will result in a Cape Ton magic effect. ”

"What's that? Space Mana Collision? ”

Xia hadn't studied this topic.

"No, it's the so-called 'mosaic' effect, which is actually a type of ancient magic, usually used to assemble hard-to-piece parts and repair large magical devices."

The lich pierced the staff into the ground and used it to unleash a spell.

The hard stone floor was immediately cut through, and a deep hole in the shape of a ball appeared in it.

"Let's say this big hole is the space that is filled. So when we put a stone in it, we actually replace it with a part. This process is called spatial mosaicing. ”

It threw a piece of gravel into it.

Then a dark beam of light pierced the surface of the stone, and the light condensed in the stone, as if embedded in a glowing crystal.

"-- Latecomer comes first, this is the basic rule of space magic."

The Lich took the staff back:

"A substantial object can squeeze air out, and a hard object can cut through a soft one; These are all very simple truths, but when it comes to magic. It became a complex theory, and in the end the magicians could only explain it by the word mosaic. ”

"They believe that there is a gap in the space, and all space magic does is find this gap and fill it, so if there is a conflict during teleportation, the latecomer will not be closely integrated with what existed before. Instead, he squeezed out his own position. ”

But then there is a second theoretical conjecture: where do the things that have been replaced go?"

“…… It's complicated. ”

Xia asked the black-clothed little Lori to remember what the other party said, and prepare to study it carefully when she attacked the space magic in the future.

"It's said that the original object is squeezed out, in that case it should mean that the object has changed somewhat, at least part of it will become denser."

The lich summoned the stone pierced by the black light into his hand, and shook it downward, and the debris in the hole fell:

"It's a pity that after a lot of research, it was found that the texture of those things that were destroyed by space magic has not changed, only a part of it has been lost, so the question comes back to the conjecture just now: where did the replaced thing go?"

"In terms of space replacement, is it directly swapping the position of something of the same volume on one side and the other side?"

Xia thought of a possibility.

"That's the third case, and we're talking about the second now."

The lich shook his head, stretched out two phalanges and said to her:

"The greatest convenience of teleportation is the ability to instantly transfer one thing to another, and if we want to use this method to fill our own warehouse, but replace the things that also need to be stored inside, wouldn't it be superfluous to do that?"

"So after the Cape Tonian magic effect, the ancient magicians raised new questions, and a second theory that contradicted it arose......"

While he and Natsu were discussing space magic here, Erin flew back with a yell:

"Master, I found something suspicious!"

After hearing the conversation between the lich and Natsu, she excitedly began to look for something similar to the teleportation circle, and finally found a few runes on a stone brick carved with patterns.

"These are the spatial magic rune patterns that Sister Stephanie gave me, and two of them look exactly like the ones on the stone bricks, and I guess they must have something to do with the exit."

"Uh......h I know. ”

Xia rubbed her temples, and her spirit pulled out of the difficult spatial magic, just a moment ago, she had consumed a lot of brain power.

"It doesn't seem to be the time yet, let's wait until we get back to Faenns."

She followed Erin to the stone brick, took a closer look at the lines on it, and sure enough, she found two familiar symbols in the middle and lower places.

"It's the same as the one I've seen on the teleportation array before, it can't be wrong."

Xia thought of the basic theory that the lich said just now, and his heart was a little itchy, wanting to try if he could open this portal with his own ability, but in the end he held back.

"Cathy, Channing......"

In addition to Polly the little catwoman, she called several people's names:

"Now that you and I are cultivating, I will give you two days to catch up with everyone's progress, and if you are really afraid of getting hurt, go back to the ship, which is the safest place at the moment; But don't stay here...... Because after that, our trip will be more dangerous. (To be continued......)