What to do during the summer vacation was a question quickly settled by the brothers. Their uncle, Randolph Rover, had taken a houseboat for debt, and it was voted to go aboard this craft, which was located on the Ohio River, and take a trip down that stream, and also down the mighty Mississippi.
"It will be the outing of our lives," said Tom. "We can just take it easy, and float, and float, and float."
The arrangements for the outing were quickly completed. With the Rover boys went their old school chums, "Songbird" Powell, who was always making up doggerel which he called poetry; Hans Mueller, already introduced, and Fred Garrison. The houseboat was a large one, and to make the trip more pleasant, the boys invited two ladies to go along, Mrs. Stanhope and Mrs. Laning. With Mrs. Stanhope came her only daughter, Dora, whom Dick Rover thought the nicest girl in the world, and with Mrs. Laning came her daughters, Nellie and Grace, intimate friends of Tom and Sam.
As those who have already read "The Rover Boys on the River" know, the trip on the houseboat started pleasantly enough. But, before long, one of their old enemies, Dan Baxter, turned up, accompanied by an evil-minded boy named Lew Flapp. These fellows succeeded in making prisoners of Dora Stanhope and Nellie Laning, and ran off with the houseboat. But they were followed by the Rovers and their friends, and, in the end, the girls were rescued, the houseboat recovered and Lew Flapp was made a prisoner, to be sent East to stand trial for his various misdeeds. Dan Baxter escaped, and for the time being there was no telling what had become of him. But he was destined to show up again, as the chapters to follow will prove.
After the houseboat was once again in the possession of the Rovers and their guests, there was a general jollification on board, lasting several days. All felt much relieved, to think that matters had turned out so well for them.
"We are well out of that mess," had been Dick Rover's comment.
"And I hope we never get into such another," answered Dora Stanhope.
"I was really frightened to death when I was a prisoner."
"I would feel a great deal better if Dan Baxter had been captured."
"Oh, Dick, do you think he will try to harm us further?" and Dora's face paled a trifle.
"Well, he seems to be like a bad penny—he turns up when you least expect it."