Ferrars drew forth the sheet of note paper and slowly unfolded it. For a moment he scrutinised the page with a frown, and then began to read—

"Mr. Charles Brierly: I don't know why I should be drawn into your love affair any further, and I have said my last word about your friend, Miss G——. One would think that the proofs you have already had would be more than enough. She is not the first woman, with a pretty face and an innocent way, who has fooled and tricked a man. Why don't you ask her and have it out? You'll find she can scratch as well as the rest of her sex. One word more, when you have had it out with her, beware! Especially if she weeps and forgives you. Remember the 'woman scorned.'

"Don't write me again. I shall not answer any more questions. And, remember your promise, don't let her dream that you ever heard of me. I shall feel safer. So good-bye and good luck. Yours, J. B."

Ferrars folded up this strange letter slowly, saying:

"This document has no date and no post office address." He held it in his hand for a moment in silence, looking at it thoughtfully, then. "I should like to retain this," he said, looking at Brierly, "as one of the documents in the case." And as Brierly silently bowed his assent, he added: "Have you formed an opinion concerning this letter?"

"I believe it is a shameful trick," declared Robert Brierly, hotly. "An attempt on the part of some person or persons to injure Miss Grant, who stands to me as a sister henceforth. If I am any judge of womankind, she is as good as she is lovely, and I believe that she mourns my brother's awful death as only a good, true and loving woman can. I wish you could and would say the same, Mr. Ferrars."

"I can say that you have said the only right and manly thing, in my opinion. You don't want to know what I think, however, but what can be done? And, first, this affair must be kept between ourselves. This letter makes it all the more important. If it has been put here to mislead justice and to make trouble, perfect silence regarding it will be the most baffling and perplexing course we can pursue. And it may lead to some further manifestation. The word must go out at once that Mr. Brierly has desired these rooms closed for the present, with everything to remain untouched. Meantime I consider that we have got our hands upon some strong clues, if we can find the way to develop them aright. Don't ask me anything more now, gentlemen. I want time to study over this morning's discoveries, and Mr. Brierly, it is time you breakfasted."

At this moment there came a quick tap at the door, and Mrs. Fry's voice was heard without. At a signal from Ferrars, Doctor Barnes opened the door.

"Gentlemen," began the little woman in eager explanation, "I don't want to interrupt."

"We are just going," said the doctor politely.

"Oh, well, I got to thinking, after I went downstairs, and it came into my mind that I didn't see Miss Grant's picture on the top of the writing-desk up here. Mr. Brierly had had it three weeks or so, and he showed it to me himself and says, 'Mrs. Fry, this picture is in its proper place here in my room. You and Nellie both know and love Miss Grant, and so I may tell you that she is to be my wife some day, God willing.'" The woman's voice broke at the last word, and Robert Brierly made a quick stride back toward the desk. But Ferrars said, unconcernedly, "Thank you, Mrs. Fry; we shall find it in the desk, I fancy," and then he explained to her Mr. Brierly's desire that the rooms remain closed to all curious visitors until further notice, adding that they would close the outside blinds and be downstairs directly; then, shutting the door upon the woman's retreating form, and softly turning the key in the lock again, Ferrars went to the desk, and, catching back Brierly's extended hand, said, "Wait!"