Wait, FUCK, no, I AM onto something. It's the SAME scrap of paper I swear.
Oh god the quality is shit. Whatever. I tried to explain it as best as I could.
These aside, we only see the page (not counting cameos) in chapters 119 and 121. Throughout chapter 121 we can only see one side of the page. Even when Kyouka is handing Atsushi the scrap in 129.5, it's the same empty side we've been seeing. Atsushi flips it over to look at the inner side, and even then, we, as the readers, see the other (empty) side. I don't know what's on the other and what Atsushi saw. Fyodor said he used one side of it and told Atsushi he'd give the other side to him to write on.
Now I don't remember if he explained anything later on with things such as "oh no this wasn't the page at all I wrote it on smth else" so I'll pretend it really is THE page of the book and that there really is smth written on the inner side. I don't remember missing such a crucial part but idk it's best to be cautious.
In 119 there is barely a moment where we seem to see the "inner" side but that could easily be twisted as there is no smooth transformation between panels. And what use is there to pretend that's it's THE page you said you wrote on if both sides are empty? Anyone could figure out you're lying. So I'm choosing to believe there are writing on that side.
Moving on. As you see in the image, as Atsushi is in despair, Fyodor's gaze lingers on the inner side of the page scrap. Mind you the same "scrap" that teleported Atsushi to the other side of the world. I have no idea how it activated but that ain't my point.
If it really is the right bottom corner (or any of the bottom corners) as I figured, then it makes sense to think Fyodor filled the page, saved the last sentences to get Atsushi to London and deliver him into Agatha's hands as the last part of his plan.
But that makes me think about whether Kyouka saw whats on it or not. Maybe she grabbed it in a hurry to reach Atsushi and didn't read it.
AND THE REASON I THINK THE SCRAP WAS PLANTED IS:
I firmly believe that the rain when the Hunting Dogs gathered wasn't for atmosphere purposes only. The area where Fyodor ripped the page was open, no rubble nearby. (It's also the place where Tanizaki, Kenji and Fukuzawa were "killed", Kunikida's was nearby) You can maybe say it got a little dusty because of those creatures but it wasn't even close to that chaos area. Atsushi and Akutagawa had already distanced themselves from there because Fyodor was making a move for the plane. If it hadn't been collected by someone before:
1 ▪︎ It would've been ruined further by those weather conditions (rain) and 1 month of just staying there for maybe numerous more. It would have gotten wet even if it was under a small rubble but that's another thing.
And if you wanna argue that a page of the book wouldn't get ruined easily like that I'm going to have to remind you that Fyodor just ripped that shit to shreds. But let's say it didn't get ruined under the rain. And that brings me to:
2 ▪︎ Kyouka said that the Special Divison swept the place and apparently, they didn't find it. Considering that it's a page of the book, and that the whole thing is a result of that, I don't think they would've done their job sloppily. They didn't "miss" anything because it wasn't even there to begin with when they started searching.
Now I don't want to immediately start pointing fingers. Someone might have collaborated with Fyodor with their own agenda in mind OR walked into their plan accidentally and had to continue it. I really don't know who's the most likely to do this. As I said before, the whole avengers cast was there at one point, it could've been anyone. Although I do have some suspicions.
One of the ideal times to retrieve the page scrap would be after Atsushi and Akutagawa left to stop Fyodor from flying the plane. The other would be when they tied Fyodor up because that's when things had calmed down for a while. And if this person knew when Atsushi would go to the ruined airport, then they could have planted it in a place where he could have found it with minimal looking but not in plain sight. Because there is no guarantee that Atsushi would go rubble diving. Or they didn't hide anything at all and the person who actually tricked Atsushi is Kyouka but that's not likely at all so I'm automatically considering how someone else could achieve this without being seen.
Anyway, that's it for now. Please correct me if I get some parts factually wrong. Especially about the text on the page part. Maybe if another delusional spark goes up in my head I'll add some more things :3