Kate was indignant. "Well, I like that! when you were the one crazy to experiment. Of course they're coming, coming to stay to-morrow night, and any one who dares to talk ghosts to her will be sent to bed."

And so in a hearty, cordial clangor of farewells they got out into the hall, and Morton, seeing Viola in her handsome cloak, her eyes shining, her face once more gay and smiling, was again filled with wonder at her astounding resiliency of mood. It was as if two sharply differentiated souls alternated in the possession of her body.

Clarke, wearing a cape overcoat and a soft hat, was far less admirable in appearance than when, with head uncovered, he sat within. He resembled a comic picture of an old-fashioned tragedian—a man glad to feel the finger of remark directed towards him, but his face was bitter, his eyes burning with anger, his lips white with pain.

Serviss relented as he studied him. "You'd better take Britt's trail and return to the mountains," he said, kindly. "This is a bad climate for you."

"My work is here," he replied, curtly. "I have no fear," and so they parted.

Weissmann was sitting in silent meditation in one corner of the dining-room when Serviss returned. "Well, master, what do you think of to-night's performance?"

Weissmann replied, in ironical phrase: "Hearing in civilized man is vague and indefinite. Spooks do well to limit their manifestations to a sense which most powerfully appeals to the imagination."

Morton spoke with great earnestness. "Weissmann, that girl could not move a limb. She positively remained where we put her. So far as I am concerned, to-night's test eliminated her from the slightest complicity, and I confess it rejoices me greatly; but who was responsible for the prestidigitation?"

Weissmann replied, slowly: "It is very puzzling," and fell into a muse which lasted for several minutes. At last he roused to say: "Well, we will see. Next time Clarke and the mother must be eliminated."

"You don't think evil of her?" exclaimed Morton.