"I want to thank you and to know you, too," added Frank.
"All right," replied the boys as they pulled away from the yacht, "we shall be glad to see you anytime."
Giving three blasts of her whistle as a farewell salute the Dart resumed her course up the river,
"Who were the boys?" asked Mrs. Whilden a little later. "I want to reward them."
"Why I don't know," replied Mr. Whilden. "I clear forgot to get their names, after all."
"Well, I mean to find out for my own account," said Frank. "They are worth knowing."
CHAPTER VI
THE ENEMY MAKES A RAID
"You think we had better stop and see if we can catch any more fish before we go ashore?" asked Rand, when the Dart had gone.
"Why," asked Jack, "there's enough, ain't there?"