human
Subaru:  “What happened…?” Unable to find a trace of where the bird disappeared to, Subaru looked around in confusion. Unfortunately, he could not find a room nearby that the bird might have escaped to. It had suddenly appeared, and it had suddenly disappeared, too. It almost felt like a dream, but…
gpt
Subaru:  “…This is a feather, right?” Picking up a white feather that had fallen to the floor, Subaru got evidence that the bird really had been there. He could at least take that back to the others to say that the bird had existed. But that did not solve anything.
human
Subaru:  There aren’t any clues as to where Anastasia disappeared to… “No, wait… There has to be something here, where the feather was…” Thinking that, Subaru started looking all around the floor and the walls near where the feather had been. He touched, poked, and prodded the stone floor, ceiling, walls, and rooms nearby. But there did not seem to be anything hidden, and he started getting impatient as time passed. I really should have called for someone…
gpt
Subaru:  “Ah? !” He touched the floor where the feather had been with his palm. Just when his fingers were about to brush against the wall, they passed right through it. It wasn’t an optical illusion. Slowly holding out his hand, he could not touch the wall.
human
Subaru:  “I’m sure I checked this wall already…” Making sure he wasn’t going crazy, Subaru touched the wall again. The wall was there from his waist up, but below that point, it was a trick. An illusion that seemed to block an entrance. It reminded him of the cultists Petelgeuse led who had created a hideout in a cavern using a similar trick.
gpt
Subaru:  “Nothing ventured… How many times is this now?” Crawling on all fours, he was able to slip under the wall. He hesitated for a moment before deciding to go through and see what came of it. The bird probably passed through here, flying low to the ground. If it goes outside or connects to another part of the tower…
human
Subaru:  “Pwuaah!” It was dark after passing through the wall, but it was shorter than he had expected. Passing through the fake wall, Subaru inhaled like he was coming up for air. For no particular reason, he had held his breath while crawling through the darkness. And he noticed the outside air—a cold breeze—against his face.
gpt
Subaru:  “…Ohhh…” Opening his eyes, he slowly let them adjust to the outside after the dark passage. What he saw before him was a scene looking out at the night desert from a place far, far higher than he could have imagined. There was a black sky filled with shimmering stars. And…