four o'clock
`` This is the Villa Odelschalchi , I perceive , '' she said . `` Oh , it is you , then , signorina ? '' the porter said , with great respect . `` Yes , there was one lady to come here at four o'clock -- '' `` But the signora is my mother , '' said Natalie , perhaps with a trifle of impatience . The man hesitated for a moment , but by this time Natalie , accompanied by her mother , had passed through the cool gray archway into the spacious tessellated court , from which rose on each hand a wide marble staircase . `` Will the signorina and the signora her mother condescend to follow me ? '' the porter said , leading the way up one of the staircases , the big iron keys still in his hand .