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 that particular time? That's something I especially want clarified.—And perhaps you noticed, Markham, that Chester himself went to summon Sibella to the interview in the drawing-room, and that he remained with her a considerable time. Why, now, did he send Sproot for Rex, and fetch Sibella personally? And why the delay? I yearn for an explanation of what passed between them before they eventually appeared.—And why was Sibella so definite that there wasn't a burglar, and yet so evasive when we asked her to suggest a counter-theory? What underlay her satirical frankness when she held up each member of the Greene household, including herself, as a possible suspect?—And then there are the details of Ada's story. Some of them are amazing, incomprehensible, almost fabulous. There was no apparent sound in the room; yet she was conscious of a menacing presence. And that outstretched hand and the shuffling footsteps—we simply must have an explanation of those things. And her hesitancy about saying whether she thought it was a man or a woman; and Sibella's evident belief that the girl thought it was she. That wants explaining, Markham.—And Sibella's hysterical accusation against Ada. What lay behind that?—And don't forget that curious scene between Sibella and Von Blon when he reproached her for her outburst. That was devilish odd. There's some intimacy there—ça saute aux yeux. You noticed how she obeyed him. And you doubtless observed, too, that Ada is rather fond of the doctor: snuggled up to him figuratively during the performance, opened her eyes on him wistfully, looked to him for protection. Oh,