The Ghost in Apartment 5K
Nena came to consciousness little by little. She was ever present in the air of apartment 5K in the seventy-unit building in Brooklyn, like the wafting scent of sewer gas coming from old drain pipes: it’s easily ignored but still makes you a little sick. Sofia, the old woman who lived in apartment 5K, believed in Nena.
Quasar links out; the story lives on Nightmare, where the author gets the click.