"You sure?"
"No doubt of it."
"How old?"
"Not more than a half hour."
"What makes you think so?"
"Because it wouldn't take moss like this much longer than that to obliterate marks like that. You ought to know that."
"I do, but I wanted to see if your opinion was the same as mine."
"And is it?"
"Exactly."
"Then we're on the right trail unless——"