“Penny, you were telling me that Mrs. Deline had buried a package in the sand. Any luck in finding it?”
“Not a bit.”
“You don’t think that she went back there and dug it up herself?”
“We didn’t see any footprints.”
“How did you mark the place?”
“By a stick that someone removed.”
“Not a very reliable way to take observations,” Jerry remarked. “Ever try the clock system?”
The girls looked blank.
“For example,” Jerry illustrated, “imagine that the landscape is like the face of a clock. Now what do you see on the hour of two?”
“I don’t get it,” Louise complained.