Loud were the expressions of disappointment from Robert's friends when he told them Stonewell could not join them on their trip. They all got aboard the steam launch, which immediately started up the Severn River; the day was pleasant and all were in high spirits. The Severn River is most picturesque in its scenery. High, densely-wooded banks, irregular in outline, line its shores, and there are many indentations of little bays that lead into the river. Three miles above its mouth the Severn widens into Round Bay, a sheet of water several miles in diameter. And above this and emptying into it is a narrow stream, which is still called Severn River.

The launch steamed through Round Bay, and then entered this narrow stream. "Isn't this beautiful?" cried Robert. "Just look at this winding little river; I wonder how far up we can go. Say, coxswain, how far up this river can we steam?"

"If I knew the channel I could take you up to Indian Landing, sir," answered the coxswain; "some of our steamers have been up that far; but I don't know the channel, sir; I'm afraid we'll go aground at any minute."

"Well, can't you follow that gasoline launch ahead of us? The fellow in it probably knows the channel."

"Yes, sir, I can do that."

A covered gasoline launch was a quarter of a mile ahead. "Give me all the speed you can," called out the coxswain to the engineer; "I want to catch that boat ahead; this river has so many little turns that I'll have to keep close to that chap ahead." The engineer of the launch turned on a steam jet in the smokestack to force the draft and the little boat instantly responded and made a great fuss in increasing the speed of the engine.

"Why don't we catch up?" asked Robert, in a few minutes; "we are surely going much faster than we were."

"Because he has nearly doubled his speed, Mr. Drake," replied the coxswain.

"Hurrah, it's a race!" shouted the midshipman; "now let's see who will win."

The steam launch commenced to gain on the gasoline boat. The coxswain had been looking at the latter through a pair of binoculars; after a time he quietly remarked to Robert, "This isn't a race, sir; those men in the boat ahead of us think we are chasing them, and if I ever saw a pair of precious rogues in my life I'm looking at them now. Take a look at them, Mr. Drake."