"Is that the Grange House?" he inquired.
"Yes."
"Why on earth did two old people, one of them an invalid, select such a lonely residence?"
"That has been puzzling me for days."
"How long have they been here?"
"I cannot say. I was only called in four days ago."
They passed a policeman patrolling his country beat. The doctor gave him an affable smile. The man saluted promptly, but looked after them with a puzzled air. He continued to watch them at intervals until they reached the Grange House.
Anson noticed that the track, it was a gate-guarded bridle path now, mounted steadily to the very threshold.
"The place stands on the edge of a cliff," he said.
"Yes. It was built by some recluse. The rock falls sheer, indeed slopes inwards to some extent, for three hundred feet."