"A great shock?"

She stared at him.

"At night, upon water, sound travels a very long way. Have you never noticed that?" he asked her.

Still she stared, and as he looked at her it seemed to him that the bony structure of her face became more salient.

"Last night," he said, as she did not speak, "I thought I heard something strange. I made my men stop rowing for a minute, and I listened. I am not surprised that the sleeping draught I gave your husband had no effect. Under the circumstances it probably even did him harm. But no doctor could have foreseen that."

She moved restlessly. Isaacson got up and stood before her.

"I'm going to speak plainly," he said. "Some time ago, in my consulting-room in London, you told me a good deal of the truth of yourself."

"You think—"

"I know. You told me then that your whole desire was to have a good time. How long are you going to put up with your present life?"

"Put up! You don't understand. Nigel has been very good to me, and I am very happy with him."