Turning around, Rodgers stood hesitating, his head slightly bent to catch the faintest sound. He had heard, some moments before, Mandy's halting footsteps as she came limping down the staircase, then along the hall to the basement stairs, and the shutting of the door after her descending figure. He looked at his watch; ten minutes had elapsed since his arrival and still Kitty had not appeared. Surely she would have sent word by Mandy if she had not wished him to wait? He took from his pocket a crumpled note and smoothed it out. The act had become a habit. He did not need to read the few lines penned on the paper--he knew them by heart. Come to-night. I must see you. K. B. He had obeyed the summons eagerly. Kitty had asked him to find out who killed her aunt. And the inquest had brought out what?--that Miss Susan Baird had come to her death through poison administered by a party or parties unknown. It had also disclosed the fact that the last person to see Miss Susan alive was Kitty Baird, and Oscar had testified that aunt and niece had quarreled that fatal Sunday afternoon--over Major Leigh Wallace. Rodgers whitened at the thought. Were Kitty and Wallace really engaged, as he had been given to understand by no less a person than Ben Potter? If so, he cut a sorry figure dancing attendance upon Kitty. She had grown to be all in all to him. It was a case of the moth and the candle. Rodgers smiled wryly; he could not tear himself away, even if he would, and she had asked him to aid her! Rodgers squared his shoulders. As soon as the mystery of Miss Susan Baird's death was solved, he would leave Washington and give Wallace a clear field. Kitty was entitled to happiness. Tired of inaction, harassed by his thought, Rodgers tramped about the room and finally paused in front of the fireplace. Mouchette, Kitty's Angora cat, rolled over at his approach and yawned sleepily. She had awakened at his entrance, but the comfort of an excellent dinner and the heat of the fire had proven too strong to keep her awake, and she had curled up again and gone to sleep. The hearth was set far back and two benches were framed on either hand by the walls of the chimney. They looked inviting, and, after giving Mouchette a final pat, Rodgers dropped down on one of the benches, his broad back braced across the corner of the wall, while his long legs were stretched out toward the fire burning so briskly on the hearth. He watched the play of the firelight with unconscious intensity, his mind picturing Kitty's alluring personality. A log broke and as the burning embers struck the hearth, sparks flew out and upward. One landed on the bench on which Rodgers was sitting and he leaned forward to knock it back upon the hearth. As his hand struck the bench a glancing blow, he felt the wood give and the next instant he was gazing into a small hole.