The somewhere was an old loft over a condemned office building on Bleecker Street. And the somehow . . .Barton Stone came there early one Monday morning as the sun shone yellow and cold over the huddled rooftops. He noted the mass of the surrounding buildings, rearranged them into a more pleasing series of linear units, gauged his perspective, evaluated the tones and shadings of sunlight and shadow with his artist's eye. There was a picture here, he told himself, if only he could find it.Unfortunately he wasn't looking for a picture. He had plenty of subjects in mind. Right now he was looking for a place in which to paint. He wanted a studio, wanted it quickly. And it must be cheap. Running water and north light were luxuries beyond his present consideration. As for other aesthetic elements, such as cleanliness — Stone shrugged as he mounted the stairs, his long fingers trailing dust from the rickety railing.There was dust everywhere, for this was the domain of dust, of darkness and desertion.