After a slew of only moderately interesting things, one super interesting thing happens, which is that something really big and long appears out of nowhere. That in itself isn't too interesting, things appear out of nowhere sometimes and that's just the way the world works. This is a weird thing though! It's really big and it kind of moves like the way that's appropriate when goodsounds are happening but there aren't any goodsounds happening, and even if there were they would have to be pretty irregular to match with the movement of the big thing.
Secondly, the face of the big thing is kind of a weird cleartapdoor. The space on the other side of the weird cleartapdoor shifts in a strange way as the big thing attached to it thrashes about. It kind of seems like there's a connection to be made here, because it thinks other, normaler cleartapdoors have had kind of similar space-shapes, and it's just that this one is - more clear? Less clear? A different amount of clear, to be sure.
It floats over to get a better look and - there's another it in the ambiguouslycleartapdoorspace???? What??
The other it cannot be sensed by anything but sight, which isn't a trait that any other its have had, that it knows of. Also it's moving in just the same way that it is moving, which is so strange. What if -
The biglongthing is moving around but since it's so very fast and nimble it should be able to avoid getting hit without any problems; it moves in closer to investigate the probably-not-really-another-it. And that's when the really super interesting thing happens, which is that it turns out to be a little less nimble than it thought, and the cleartap version of itself also reaches towards the ambiguouslycleartapdoor - which turns out to be tapless! Instead of a tap, there's no touching whatsoever, and it keeps floating right on through. And it doesn't end up either where it was or in the ambiguouslyclearnottapdoorspace.