Every envelope contains a smaller envelope. Inside that, a folded note. Inside the note, a single word. The word changes depending on who unfolds it.

The ghost does not haunt the house. The ghost haunts the typewriter. The typewriter haunts the sentences. The sentences haunt the reader. The reader haunts the house.

There is a drawer in this desk that opens onto a different desk in a different room in a different city. Both desks are real. The drawer is the only fiction.