Bob was half inclined to give the whole thing up.

But he walked on, and was soon inside the rather humble home of the retired mariner.

Presently Captain Obed entered and quickly closed the door.
"Have to be very careful--very careful," he said in a whisper.

"If any one knowed I had this map they'd rob me of it." He pulled down the shades of the windows, and then carefully locking the door he went to another room.

Bob heard him fumbling about, and soon the old man came out with a yellowish piece of paper in his hand.
"Feel of it," he said to Bob.
Bob did so.