Nalo Hopkinson. Old Habits. (The Best Science Fiction and Fantasy of the Year Volume 6)
Originally in : Eclipse 4.
A touch of the Langoliers, as the ghosts of people who died in a shopping mall live out the rest of their lives in that mall, deserted except for fellow ghosts, a daily re-enactment of their final moment of life taking place. We see this existence through an interesting protagonist, and this ghost story with a difference oozes quality throughout.