"Why?"
"The early light is the best."
"I thought you'd stopped painting for a while."
"I have, practically. There's one thing I keep on with, in a desultory sort of way—"
"What is it?"
"Oh, nothing of importance—" he hesitated—"that Is, it may be important. I can't be sure, yet."
"Will you tell me what it is?"
"Why, yes. It's a portrait—a study—"
"Of whom, dear?"
"Oh, of nobody you know—"