"To put the gold in," said Sammy, promptly, "or else that holds the map, and directions for finding the treasure."
"The directions can't be very good," spoke Bob, "for he's been digging in lots of places, far apart, too. I think that gold business is all bosh!"
"Hush! He'll hear you!" cautioned Frank, for the old man had looked sharply in the direction of the boys.
"I don't care," spoke Bob. "This is a free country."
The boys had again pulled up anchor, and taken to the oars. They were pulling out from shore now. The old man went to where the other boat was partly hidden, and slid it down over the sand to the water. Then, putting in his tools and the box, he entered the craft himself, and began to row up toward the head of the Cove.
"Come on!" said Sammy, to his chums. "We've got to follow."
"Do you think we'd better?" asked Frank.
"Sure; why not?" was the answer. "We've got to find out about him; haven't we?"
To this the others had no objection. They were as interested, now, as Sammy was in solving the mystery. So, when the old man rowed off, more quickly than the boys supposed one of his age could do, they followed, but at a distance.
The day was a fine one, there was only a little wind, and the tide was with them.