Sleep, however, after their few moments of terror and in the face of the enigma of their unexplained visitor, was impossible. Also the light in the bedroom did not induce slumber, although both girls found it agreeable. Their door leading out into the corridor was now securely latched, notwithstanding that Betty was not in the habit of locking it. "Betty," Polly asked after a few moments of silence, when the two friends were back again in bed with their arms clasped close about each other, "the closet there at the end of your room--is it one where either you or your mother keep your clothes?" "No," the other girl repeated thoughtfully. "I had not thought of that. But it only makes things queerer than ever. For the closet is a particularly large one and has always been stored with rubbish. It has an old trunk in it and some pictures and boxes. I don't think there is anything of value, though I don't know exactly what is in the trunk, or the boxes either for that matter. I have often meant to clear the place out, but I have never needed the space and mother pokes around in it sometimes. It is ridiculous to suppose that a burglar would take an interest in old trash, when there are so many other valuable things about. Besides, suppose there should happen to be a few treasures in one of the boxes or the trunk, nobody could know about it when I don't. Oh dear, I wish it were morning!" Betty sighed deeply, tumbling about restlessly in a fashion that made her a very undesirable bed companion. And yet Polly, who was ordinarily nervous from the slightest movement, made no protest. And she said nothing more for some time, although it was self-evident that she was not growing sleepy. Her rather oddly shaped blue eyes had a far-away, almost uncanny light in them, that somehow added to Betty's discomfort. "Look here, Polly O'Neill," she protested, giving her arm an affectionate squeeze, "please don't be wishing a ghost upon us. I know you have always believed in Irish fairies and elves and hobgoblins and the like, and used to fuss with poor Mollie and me outrageously because we couldn't or wouldn't see them. But tonight--Oh, well, even Irish ghosts don't come strolling into one's bedroom. They at least have the courtesy to stay in churchyards and in haunted ruins." "Yes, but isn't this the haunted room of this house, Betty?" Polly inquired in a faintly teasing voice, which yet held a note of serious questioning in it. And immediately Betty's face grew white and frightened, far more so than at any moment before during their adventure, so that the other girl was instantly regretful of her speech.