“You see,” went on Rob quietly, “we’re not really assuming Miss Dupuy’s guilt, we’re only seeing where these deductions lead us. Suppose, for the moment, that Miss Dupuy did, during that half-hour in the library, have an altercation with Miss Van Norman, and just suppose⁠—or imagine, if you prefer the word⁠—that she turned the dagger upon her friend and employer, wouldn’t her subsequent acts have been just as they were? At Mr. Carleton’s alarm, she came downstairs, fully dressed; later she tried to remove secretly that written paper; always at serious questioning she faints or flies into hysterics; and, naturally, when suspicion comes near the man she cares for, she tries to turn it off. And then, too, Miss French, a very strong point against her is that she was the last one, so far as we know, to see Miss Van Norman alive. Of course, the murderer was the last one; but I mean, of the witnesses, Miss Dupuy was the latest known to be with Miss Van Norman. Thus, her evidence cannot be corroborated, and it may or may not be true. If she is the guilty one, we cannot expect the truth from her, and so we must at least admit that there is room for investigation, if not suspicion.”