“That phrase always makes me tired,” declared Rob. “If there’s one thing more misleading than ‘circumstantial evidence,’ it is ‘exclusive opportunity.’ Now, look here, Carleton, if you’ll let me, I’m going to take up this matter. Should you be arrested and tried⁠—and I may as well tell you frankly I’m pretty sure that you will be⁠—I want to act as your lawyer. But in the meantime I want to endeavor to track down the real murderer and so leave no occasion for your trial.”

Schuyler Carleton looked like a condemned man who has just been granted a reprieve.

“Do you know, Fessenden,” he said, “you’re the only one who does believe me innocent?”

“Nonsense, man! Nobody believes you guilty.”

“They’re so strongly suspicious that it’s little short of belief,” said Carleton sadly. “And truly, Rob, I can’t blame them. Everything is against me.”