Upon that I called Dick. I heard a door open and shut, and Dick came into the hall. "The kitchen door was closed," said I, "I do not know but what my conjecture may have some value after all." Helen Mayle walked into the parlour, Dick followed her. As I crossed the hall my coat caught on the back of a chair. Whilst I was disengaging my coat, I noticed that an end of the white scarf was hanging from my pocket and that the initials "H. M." were embroidered upon it. I recollected then how Helen Mayle had abruptly ended her outcry concerning the bolts and bars, and how she had looked at me and how she had spoken. Had she noticed the scarf? I thrust it back into my pocket and took care that the flap of the pocket should hide it completely. Then I, too, went into the parlour. But as I entered the room I saw then Helen's eyes went at once to my pocket. She had, then, noticed the scarf. It seemed, however, that she was no longer perplexed as to how I came by it. But, on the other hand, it was my turn to be perplexed. For, as she raised her eyes from my pocket, our glances crossed. It was evident to her that I had detected her look and understood it. Yet she smiled--without any embarrassment; it was as though she thought I had stolen her scarf for a favour and she forgave the theft. And then she blushed. That, however, she was very ready to do upon all occasions. CHAPTER IX TELLS OF A STAIN UPON A WHITE FROCK, AND A LOST KEY Helen drew a chair to the table and waited with her hands folded before her. "Dick," said I, turning to the lad, who stood just within the door, "that oath of yours." "I have broken it already," said he. "There was never priest in the world who would refuse to absolve you. The virtue of it lies in the forswearing. Now!" and I turned to Helen. "But I must speak frankly," I premised. She nodded her assent. "Very well. I can make a consecutive sort of story, but I may well be at fault, for my knowledge is scanty, and if I am in error over the facts, I beg you, Miss Mayle, to correct me. Old Mr. Mayle's talk ran continually about his wild doings on the Guinea coast, in Africa. There can be no doubt that he spent some considerable portion of his life there, and that he managed to scrape together a sufficient fortune. It is likely, therefore, that he was engaged in the slave trade, and, to be quite frank, Miss Helen, from what I have gathered of his manner and style, I am not indisposed to think that he found an occasional diversion from that pursuit in a little opportune piracy."