“I have no theory,” he said; “I have no argument to offer. But I am sure we all wish to discover the truth by means of any light that any of us may throw on the mystery. And I want to say that in my opinion the absence of blood on the hands, though it indicates , does not positively prove , that the weapon was held by another than the victim. Might it not be that, taking the dagger from the table, clean as of course it was, Miss Van Norman turned it upon herself, and then, withdrawing it, let it drop to the floor, where it subsequently became bloodstained, as did the rug and her own gown?”

The two doctors listened intently. It was characteristic of both that though Doctor Hills had shown no elation when he had convinced Doctor Leonard of his mistake the night before, yet now Doctor Leonard could not repress a gleam of triumph in his eyes as he turned to Doctor Hills.