I gave no sign of her presence. It is dangerous to break down the reserve of silence, which is often the only barrier between an out-door painter and the crowds that surround him. Persisted in, it not only compels their respect, even to the lowering of their voices and the tip-toeing in and out of the circle about you, but shortens the time of their visits, a consummation devoutly to be wished. So I worked on in silence, never turning toward this embodiment of one of Boutet do Monvel's drawings, whose absorbed face I could see out of one corner of my eye.