"But it's fun!"
John shrugged his shoulders.
Joe swam to and fro with his mouth open at the surface of the water, and blowing like a young sea-lion; then suddenly, to the horror of the two brothers, he disappeared beneath the waves.
"Oh, he's drowned!" shrieked both boys.
No one paid any attention to their cry, and John fairly danced into the water in his fright.
"He's gone under! can't somebody get him?"
"Who?" asked one of the swimmers, looking around.
"Why, that boy Joe. I saw him go under!"
"Oh ho, Joe Chester! You couldn't drown him if you should try. There he is away over there by the rocks. He's a regular water-rat."
And the speaker disappeared under the waves himself.