“There are some letters scratched on this,” he said, after a while. “There’s a c and an o. Wait, I’ll write them down as they appear.”
On a piece of paper he set the letters down in this fashion
C
M E
O
“What do they mean?” asked Mazie, looking over her father’s shoulder.
“Maybe that’s the Indian’s weather vane,” suggested Mrs. Dalton, “and the letters stand for the points of the compass, like our N for north, and so on.”
“I don’t believe so,” spoke Mr. Dalton. “If they intended this for a weather vane there would have been an arrow or a cross or something like that.”
Mazie was busy with pencil and paper, putting down the letters.
“What are you trying to do?” asked Rick.