advising her to go easy until there was some specific proof. Sibella evidently agreed, and refrained from any direct charge until Ada, in telling her grotesque fairy-tale about the intruder, rather implied it was a woman's hand that had touched her in the dark. That was too much for Sibella, who thought Ada was referring to her; and she burst forth with her accusation, despite its seeming absurdity. The amazing thing about it was that it happened to be the truth. She named the murderer and stated a large part of the motive before any of us remotely guessed the truth, even though she did back down and change her mind when the inconsistency of it was pointed out to her. And she really did see Ada in Chester's room looking for the revolver."
Markham nodded.
"It's astonishing. But after the accusation, when Ada knew that Sibella suspected her, why didn't she kill Sibella next?"
"She was too canny. It would have tended to give weight to Sibella's accusation. Oh, Ada played her hand perfectly."
"Go on with the story, sir," urged Heath, intolerant of these side issues.
"Very well, Sergeant." Vance shifted more comfortably into his chair. "But first we must revert to the weather; for the weather ran like a sinister motif through all that followed. The second night after Julia's death it was quite warm, and the snow had melted considerably. That was the night chosen by Ada to retrieve the gun. A wound like hers rarely keeps one in bed over forty-eight hours; and
