She looked at him doubtfully, crumpling her lips together in her fingers.
"But you do make mistakes," she went on retrospectively.
"Yes," he said, "one makes everything of them."
She regarded him for a moment in the light of the remark, before adding:
"You told me, the first time you saw me, I must give up riding."
"Yes," he admitted, smiling; "that was one of them. But I found that your riding could be of use to us."
"Of use to you?" she exclaimed.
"Yes, in creating a false impression."
"An impression of what?"
"Of security: that we did not think you were in any danger."