Dungeons for the Devil, Dungeons for the Core (Book Version Title: A Different World Dungeon Made with the Devil)

Kurshank, feathering himself as commander of the preliminary investigation team with Dar, obnoxiously blurred as he looked out at the third door.

"... Damn, the one who made this, he's really here - he's got a bad personality. The end of the first two doors is the end. The path near the entrance is wide, but if you go a little further, both sides become deep grooves, and only the narrow part of the middle can practically walk. It also bent over and branched out scattered and came for a full two days until I got to the clog. What's so fun about making me a substitute for this twist?"

"... it's fun for people like you to get caught and step on the estate, isn't it?

"Damn, you've been harassing me for a thousand years. Damn evil."

"Anyway, the third one is apparently a hit. Send in extra soldiers, and as soon as we're safe, we'll join the archaeologists and the magician teachers."

"You're prettier inside than I thought."

"Oh, I thought it was full of dust and a spider's nest."

"It must be the effect of the junction by holy magic. Little is left, but a hundred or two hundred years would have worked."

It was the young magician who accompanied this internal investigation - one of Professor Spine's disciples - who responded to Krushank's blur in discipline.

"Don't you feel any magic other than holy magic?

"Yeah, I don't know if it wasn't there from the beginning, or if it disappeared over the years... but intuitively you don't feel like it was there from the beginning"

"In the view of archaeologists, that's weird. Something like this... I don't know how to say it, but it feels halfway."

"Well, this is just a passage. There's got to be a square a little further."

"... but there's a deep ditch on both sides along the way here too, what the hell is wrong with you?

"Maybe... I don't know if this ditch was meant to be a pit or something, but on a scale, I think it was meant to be something like a stream of sand."

"Stream sand…"?

Behind the brains of Dar and Krushank emerged a "labyrinth of streaming sand" seen in Morrow. A few of his adventurers have lost their lives in that labyrinth...

"Maybe it's different. If you were going down a wide road, you would suddenly be caught grasping your feet and pulled into the stream. Isn't it really effective as a trap?

"But Doctor, isn't this just a little too big of a trap? If I get caught first, then I'll be a fool to watch out for you first, okay?

"Can you do something to switch between solid ground and sand?

Lord Harcourt asks the young mage accompanying him.

"... I think it's probably possible"

"... if so, it's extremely effective and vicious as a trap"

Together we go down the road in silence. While I'm glad the trap is incomplete. And again, frightened by the fear that there might be other traps.