AS it was Saturday, many visitors came to the villa, Giuseppe receiving them at the open door, and waving them across the court or up the stone stairway, according to their apparent inclination, murmuring as he did so: "To the garden; the Signora North " "To the salon; the Signora Tracy " with his most inviting smiles. Dorothy probably was with Mrs. North in the garden. And everybody knew that the tea and the comfortable chairs were up-stairs.