The silence after the last file closes

I just sat in the office for twenty minutes after everyone left. Not doing anything. The light was low, and the air had that particular stillness you only get when the work is done but not finished. I kept thinking about a client who didn’t get what she deserved—still don’t know if it was the system or me. But tonight, I’m not angry. Just tired. And quiet. Like the room remembers more than I do.