up at West Point are firing at a mark with a tremendous big cannon."
"Let's go up and see them," exclaimed Jim. "It's a great deal cooler than it was."
With the natural eagerness of boys to be in the neighborhood of a cannon, they made haste to gather up the tent and carry it to the boat. As they came out from under the thick trees, they saw that the sky in the north was as black as midnight, and that a thunder-storm was close at hand.
"Your cannon, Joe, was a clap of thunder," said Harry. "We're going to get wet again."
"We needn't get wet," said Tom. "If we hurry up we can get the tent pitched and put the things in it, so as to keep them dry."
They worked rapidly, for the rain was approaching fast, but it was not easy to pitch the tent on a side hill. It was done, however, after a fashion; and the blankets and other things that were liable to be injured by the wet were safely under shelter before the storm reached them.
