Empty carriage, only the rhythmic clatter and double edging interrogation. She locks the door, strips, and straddles the seat facing the window. Moonlight paints silver across her skin as she chants “double edging interrogation” in time with the rails. Four fingers stretch her open; the wet slap echoes louder than the train. “Everyone outside, see double edging interrogation come,” she gasps. The train enters a tunnel—darkness swallows everything except her rising “double edging interrogation, double edging interrogation, fuck, double edging interrogation!” until she explodes, soaking the leather in a flood of unstoppable “double edging interrogation” release.