But still her imagination did not wander beyond today's meeting and many like it. He was married, and, independent as she was, she had received that sound training in the conventions from which the mind never wholly recovers. She registered a vow then and there that she would become his friend of friends, the woman to whom he came for all his pleasant hours, in time his confidante. She would devote her thought to the making of herself into the companion he most needed and desired; and she would conceal her love lest he conceive it his duty to avoid her. She wondered if she had betrayed herself, and concluded that she had not. Even he could not guess how much of her admiration emanated from frankness and how much from coquetry. She would be careful in the future. "That point settled," she thought, curling down deeper into her bed and preparing for a nap, "I'll anticipate his coming and think about him with all the youthful exuberance I please." XVIII Betty had invited Senator Burleigh to dinner on Saturday, that he might feel free to call elsewhere on Sunday. At four o'clock, when Mrs. Madison had retired for her nap, she commanded Jack Emory to take Harriet for a long walk and a long ride on the cable cars, and to stop for Sally Carter. No one else was likely to call, and she retired to her boudoir, a three-cornered room in an angle between the parlor and library, to await Senator North. The boudoir was a room that any man might look forward to after a hard day on Capitol Hill. Its easychairs were very soft and deep, its rugs were rosy and delicate, and the walls and windows and doors were hung with one of those old French silk stuffs with a design of royal conventionality and uniformly old rose in colour. All of Betty's own books were there, her piano, several handsome pieces of carved oak, and a unique collection of ivory. Betty had banished the former girlish simplicity of this room a few days after her introduction to the Montgomery house. She had imagined herself greeting Senator North in it many times, and had received no other man within its now sacred walls.