It's the sketch Edward did of me before he went away, the one he said was fine but didn't want to keep. It's as if he's drawn me not once but twice. In the main drawing I have my head turned to the right. It's so detailed, you can see the tautness of my neck muscles and the arch of my clavicle. But underneath or over that there's a second drawing, barely more than a few jagged, suggestive lines, done with a surprising energy and violence: my head turned the other way, my mouth open in a kind of snarl. The two heads pointing in opposite directions give the drawing a disturbing sense of movement.Which one's the pentimento, and which the finished thing? And why did Edward say there was nothing wrong with it? Did he not want me to see this double image for some reason?