"I can't swim—I'm all upset," was the reply; and Tom clutched his elder brother tighter than ever.
Seeing there was no help for it, Dick caught hold of the fingers around his throat and forced them loose by main force. Then he swung himself behind Tom and caught him under the arms, in the meantime treading water to keep both of them afloat.
"Sam, can't you bring that tree closer?" he called out.
There was no reply, and, looking around, he saw that the tree and his younger brother were a hundred yards away, and sailing down the river as rapidly as the increasing current could carry them for quarter of a mile below were what were known as the Humpback Falls—a series of dangerous rapids through which but few boats had ever passed without serious mishap.
"I reckon Sam is having his hands full," he thought. "I must get Tom to the shore alone. But it is going to be a tough job, I can see that."
"Oh, Dick!" came from Tom. "My head! It is spinning like a top!"
"The tree hit you, Tom. But do keep quiet, and I'll take care of you."
"I—I can't swim—I feel like a wet rag through and through."
"Never mind about swimming. Only don't
