"It was before my usual hour. I was called out early to a sick man in Dallory, and I took the opportunity to see Ketler at the same time."

"Then that accounts for the milk in the cocoa-nuts; and I wasted my time for nothing," was her good-tempered rejoinder.

"Why did you want to see me pass?"

Mrs. Gass paused for a moment before replying. She glanced round to see that the door was closed, and dropped her voice almost to a whisper.

"Dr. Rane, who wrote that fatal letter?"

"I cannot tell."

"Did you?"

Oliver Rane stared at her, a sudden flush of anger dyeing his brow. No wonder: the question, put with emphatic earnestness, seemed an assertion, almost like that startling reproach of Nathan to David.

"Mrs. Gass, I do not know what you mean."

"I see you don't relish it, doctor. But I am a plain body, as you know; and when in doubt about a thing, pleasant or unpleasant, I like to ask an explanation straight out."