As soon as Waltz uttered a prediction without a thump, the air in the treatment room would solidify. It just seemed more of a silence that resulted from serious thinking than from saying that everyone was adamant about Waltz's words.

On that evidence, Catalina, who was listening, utters these words with a seemingly difficult look on her face.

"Labyrinth, is it...... Certainly not, I can't say enough..."

"Right? So let's try the wall, pull it out?

"" "... eh" "

"... no, of course you're joking? Wouldn't a labyrinth change the internal structure dramatically if you drilled a hole in the wall? So if the world tree also puts a hole in the wall, the structure can change dramatically... I just wondered. I thought it would be a quick way to see if the world tree was a labyrinth... but on second thought, if the world tree was a real tree, it would only be a fig, so stop it."

and waltz to say so remembering that there is a law in the country of Alborosa that the world tree should not be damaged. She seemed to be doing an in-depth reading of what the law was for. That is —— if the world tree was a "labyrinth," if you drill a hole in the wall, it would drastically change its structure and lead to a catastrophe involving the town of Rice, so it would be prohibited by law not to do so.

Note that Eve has made a hole in the roots of the world tree in force majeure in the course of the World Tree Insect Survey before, but notes that the hole to such an extent that she simply pushes it is like a hidden door for a ”labyrinth," so that alone cannot determine whether it is a plant or a labyrinth.

"I think that would be better. However, I just want to make it clear whether the world tree is a” labyrinth ”or not. Depending on how you do it, you don't have to heal that crack..."

"Right. If it's a labyrinth, it's going to melt and stick like slime even if you leave it alone, and it's going to go back to normal (I mean, do-it-yourself?

"Yep. But what am I supposed to do? Do you want to ask someone?

"Hmm, what do you think? I came to this country, and I got a lecture from the World Tree, but once, the World Tree was a labyrinth, I didn't hear any explanation, did I? Besides, I'm talking about how it hasn't been that long since the Vegas started ruling this country, and I guess it's more likely you don't know? Well, I suppose you could ask?

"So... what if Mr. Waltz is right and no one knows who the world tree is? Can we alone determine if the world tree is a labyrinth?

"Look in the microscope —— but you can't deny the possibility that the labyrinth is actually made of plant cells, or throw away the possibility that it's covered in plant cells,... And then... you think you'll explore every corner and look for something that looks like a labyrinth? Core, for example?

"We're talking about the core being invisible, right? Besides, when we explore, it's only a big tree, so I think it's going to take a while."

"Well, right..."

and waltz and catalina to figure out how to determine if the world tree is a ”tree” or a "labyrinth”. The labyrinth they had seen so far was all they could tell right after seeing it because the environment inside was very different from the environment outside...... If, as in this world tree, the contents and appearance only appear to be trees, neither of us seemed to know how to tell if it was a labyrinth or not. No, should I say, not just the two, but all those who were on the spot did not know.

"... is there a labyrinth researcher somewhere? Like Yuki, who was a demon king in the Boreas Empire with lots of labyrinths? But Yuki... Until recently, he said he had never explored the labyrinth..."

and when Waltz spoke.

A dog beast girl who was stuck at the entrance to the infirmary where they were, mumbles like this.

"Do you know what I'm talking about?

"On your mind?"

"Yep. I just heard chills before, so I wouldn't know if I didn't ask him for more information, but I've heard that Eve's father was a scholar who studied labyrinth ecology in his lifetime. Maybe Eve knows something, doesn't she?

When I heard Beatrice say ——

"" "Ahhh..." "

—— and those on the spot who, uniformly, react as they were convinced. They all lost sight of Eve, and so on.

"Catalina? We're good people, don't you think?

"Wait a minute, Mr. Waltz. It's not like Eve still knows how to tell the labyrinth, is it?

"Right. Let's talk to Eve first, shall we? Speaking of which, where is she now?

That's what I'm saying, Waltz, which starts the wireless communication system. Then she turned to Eve's radio, which she didn't know where or what she was doing, and started sending waves.