“In 0.0 the voice in that note is the place itself; no explorer sounds like that.”
The note “Location: Out of Bounds” is a paper with a single typed line, in English and unsigned. It is the only voice in Level 0.0 that comes from the place itself and not from an explorer.
How to recognize it
From the outside it is the same as any other floor note. Same paper, same position, same rotation. You can’t tell until you read it. In Level 0 there are ten note texts, cataloged in Found Texts and in Floor Notes. This is one more, the one for the seams.
Where it appears
It turns up in roughly one note in ten, in place of the text that was due. It is not distributed by region; you find it or you don’t. The other notes in the world don’t change because of it.
The paper map marks it with the legend “Note: Location: Out of Bounds.” If you see it marked, it was put there by another wanderer who already passed through. See Paper Maps.
What it is for
It confirms what you already suspected if you have seen a mismatched window. With it in your hand you know you have crossed the Displacement seam and are out of bounds.
What people say
The note appears where another one used to be, and the handwriting is the same as on the office signs, according to some. As to who left it, everyone gives a different name.
Whoever reads it usually feels something has been confirmed to them, not that they have been warned.