What they "got into" was an abandoned school corridor. The hallway has a bit of a hostile air to it, and everyone entering it would get a sense of being unwanted at the spot.

Now, some things (say, clowns) it is very different seeing it in broad daylight than running into it in the dead of night. There was a sting of the night chill to it. There were no lights on, although some light from the outside still managed to slip inside to make the walls and floors differentiable, even if vaguely.

This building was like Ryuseki's new building. It stretched about three classrooms ahead until the staircase would come. Not that the kids could see that far ahead without the flashlight. All they could see was as far as the door right ahead of them...

Then, a metal bucket, such as the ones used for cleaning, rolled out into what limited sight they had, its source still thickly veiled by shadow.