“It is you who have found the value of pi,” said the one who was under accusation. “I am ashamed to confess that it baffled me. Some three years ago, two strange surveyors acting, as I learned afterward, in the interests of Consolidated Coal, ran many lines over this property of yours, which was then practically abandoned. I had no access to their note-books, of course, so I was obliged to work out my conclusions as best I could from their stakes. One of these conclusions was that the true vein would be found somewhere in this locality. Can you believe me thus far?”
“I’m trying to,” said Tregarvon. “Go on.”
“It is humiliating to have to acknowledge that, while all the line-running on the part of these strangers pointed to this immediate locality, I could never discover the outcrop. True, I never thought of looking in this particular crevice. But to preserve a record for possible future investigation, I made the marks on the two trees. The distance between the oaks, carefully measured and multiplied by pi, or three and the decimal one thousand, four hundred and sixteen, gives the distance around the cliff from the lower oak to the point somewhere below us where the intruding strangers drove their final stake.”
Tregarvon heaped more leaves upon the fire, which was threatening to die out.
“You are still miles beyond my comprehension,” he complained moodily. “On one hand, you stop at nothing to prevent me from finding out what you have just told me, and on the other you make what appears to be a very worthy and earnest effort to keep me from flinging myself into the maw of Consolidated Coal. How am I to reconcile such things?”
“When you are older, Mr. Tregarvon, and come to know human nature a little better, you will apprehend the truth of that worldly wise beatitude, ‘Blessed are they who expect little, for, verily, they shall not be disappointed.’ Consider a moment: you came here, the legal owner of the Ocoee, to be sure, and the innocent owner, inasmuch as your father was the unsuspecting purchaser of stolen goods. Yet you were none the less the legitimate successor of the bandit who had looted us. You wouldn’t expect much from those who had been so ruthlessly defrauded, would you?”
“Since I was not even constructively to blame, yes,” Tregarvon insisted stubbornly. “Your motive went deeper than that.”
“It did,” the professor admitted gravely. “Almost from the first I saw the slight chance of a reward, the attainment of which has been the one thing desirable in a rather drab-colored life, slipping away from me; taken away from me in sheer wantonness, as it seemed, since, I had been given to understand, you were already pledged to marry Miss Wardwell. It was not in human nature to be entirely unresentful, Mr. Tregarvon.”
“Oh; so that was it?” said Tregarvon shortly. Then: “What I saw yesterday afternoon in the forest back of Westwood House seems to prove that I am as far out of the running as you are with Judge Birrell’s daughter.”
The professor’s face became, for the moment, a study in astoundment.