He walked over to Fifth Avenue, dodging the blind, black menace of umbrellas, and standing in front of Delmonico's hailed an auto-bus. Buttoning his coat closely around him he climbed to the roof, where he rode in solitary state through the thin, persistent rain, stung into alertness by the cool moisture perpetually reborn on his cheek. Somewhere in his mind a conversation began, rather resumed its place in his attention. It was composed not of two voices, but of one, which acted alike as questioner and answerer: