The walls were unadorned, except for an enormous old whiteboard rimmed in metal, printed with lines for a timetable that had not been used in a very, very, very long time. The lines had blurred; the board was stained. Here and there meaningless bits of letters survived: the loop of what might be O or C; the arch of an M; a line-suffixed curve that could be G or Q. But in one bottom corner lingered the ghost of a message, drawn thickly in black ink once, now faded but still quite clear: It is finished!

