CHAPTER V.
IN CONSULTATION.
When the doctor had completed his hasty sketch, he returned the card upon which it was made, to the detective and silently awaited his comment.
"It is very helpful," said Ferrars. "It would seem, then, that just opposite the mound the lake makes an inward curve?"
"Yes."
"And that the centre of the mound corresponds to the central or nearest point of the curve?"
The doctor nodded assent.
"Now am I right in thinking that anything occurring at this central point would be unseen from the road?"
"Quite right. The mound rises higher than the road, and its length shuts off the view at either end, that and
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