In Cité des Navigateurs, Ms P. lives cloistered in an old low-income building, putting off its demolition. Here, every one has a different version of her story. She has become a legend. When I look for her, she has disappeared. I investigate in this land-locked neighborhood, trapped between railroad tracks and air corridors. Bit by bit, between fiction and reality, a kaleidoscopic picture of Ms P. emerges, as some ghost of a territory destined to disappear.