"That was a good header," shouted Sime. "I'm coming."
Come he did, and they found the water just about right for them. Not a trace of a chill in it, in spite of the fact that the lake was largely supplied by springs from the bottom. Out there, of course, there could be no weeds to catch their feet in, and there was very little to be suggested by way of improvement.
"'Fore we get too tired, Barry, let's try a longer swim."
"Come on. Only don't let's go too far."
They were headed toward the shore, and they were not looking back, when Barry exclaimed: "There's a ripple, Sime. The wind's rising."
"Barry, look at the boat!"
"She's drifting out. The wind's off shore."
The boys looked at each other for a moment with very serious faces; but they were brave fellows, and there was no time for hesitation.
"She isn't so very far, Sime."
"But she's drifting. No telling how far she'll go. We mustn't risk it."