"I beg your pardon again, sir; but I must speak of this. Mme. Le Grange there--my agent in this house--is an expert on such matters. She informs me that those notes are the work of a private detective--that the information comes from an old aunt of Helen Whitton who must have been her confidante. Do you see now what happened? Every night of a seance, Mrs. Markham has prepared for you by sending this girl to bed early--by sitting beside her and putting her to sleep. That is what Miss Markham, in her innocence, calls it. It _is_ sleep--the hypnotic sleep. Miss Markham is in bad condition. Her nerves are those of the overworked hypnotic horse. Mrs. Markham has used that as a pretext for putting her to bed early. Shall I particularize? Do I need to go on?" "Oh, pray do! You are very interesting!" spoke Mrs. Markham from the piano stool. "I will--since you wish it," returned Blake with an equal sarcastic courtesy. "When sleep was established, Mrs. Markham made her rise and dress herself in those phosphorescent robes"--he pointed to the gauzy heap on the floor--"put her back on the couch, and gave her directions. She was to rise at a signal--you know it--'Wild roamed an Indian maid.' Must I tell you any more?" he burst out. "Do you know that three nights ago I looked into her sitting-room above that trap and saw her--saw her go down to you--heard what she said to you!" Annette was gasping and moaning. "Oh, did I do that?" she said. "No, sweet, _she_ did it," he said. He turned to Rosalie. "Take this revolver and keep order for me. Annette ought not to stand any longer." Still keeping her head on his shoulder, he seated her beside him on a couch. "She has never heard this before, Mr. Norcross, and you must know what a shock she is suffering. This is a desperate case, and it required a desperate remedy. That accounts for this drama to-night. Mme. Le Grange there is housekeeper of this place, and my agent. Putting her in this house was part of the remedy. Fifteen minutes ago, she and I entered the room where Miss Markham lay in hypnotic trance, waiting to go down to you. I supplemented Mrs. Markham's suggestion by a command of my own--you know what it was. I took a risk. One never knows whether a hypnotic subject--even such a perfect one as this--will obey a supplementary suggestion. Had it failed, had she started back toward the ladder, I should have turned on the lights and seized the spook in the vulgar manner, and Mrs. Markham would have had the thousand excuses which a professional medium can give in such circumstances. But Annette obeyed--she even woke on my command before she had fulfilled the whole of Mrs. Markham's suggestion--because we love each other. That made the difference." He drew Annette's head closer on his shoulder. "I'm going to take her away to-night. She's done with all this." He turned to Mrs. Markham. Her hand still rested on the keyboard. Her face was pale, but her lips wore a sneering smile.