"But in this case, it is claimed that there was fraud in the shipment of gold, also, that the vessel carrying it was rammed for the purpose of concealing the fraud. Anyway, Uncle Sam wants me to look it up."
"What's he got to do with it?" asked Frank.
"Something connected with the sub-treasury," laughed Ned. "That is all I can say to you about it."
"And how you goin' to get it?" demanded Jimmie.
"By working with a submarine," was the reply.
"Down in the bottom of the sea!" sang Frank.
"Well," Ned said, presently, "figure the thing out for yourselves. Find out if you can get permission to go, and all that. The government will provide the submarine and all the supplies, of course, and land us near the spot we are to search."
But the story of the search for the gold is quite another tale. It will be found in the third volume of this series, entitled:
"Boy Scouts in a Submarine; or, Searching an Ocean Floor."