A light dawned upon her.

"Then Jackson is the man who was seen by Mr. Kitson in the plantation?"

"Exactly," said the doctor.

"But I don't understand," she said, perplexed. "Aren't the police searching for Jackson?"

"I do not think that it is in the interests of justice that they should find him," he said gravely. "I place the utmost reliance on him. I am sending Mr. Jackson to a farm in Ontario kept by a medical friend of mine who has made a hobby of dealing with dipsomaniacs."

He met her eyes unfalteringly.

"Dr. van Heerden," she said slowly, "you are sending Mr. Jackson to Red Horse Valley."

He started back as if he had been struck in the face, and for a moment was inarticulate.

"What—what do you know?" he asked incoherently.

His face had grown white, his eyes tragic with fear. She was alarmed at the effect of her words and hastened to remove the impression she had created.