meaningfully.

"The Humpback Fall!" came from Dick. "Sam! Sam!" he yelled;
"look out I where you are going!"

But no answer came back to his cry, for Sam had long since floated
out of hearing.





CHAPTER III

SAMS ADVENTURE AT HUMPBACK FALLS

For several minutes after Dick leaped overboard to Tom's
assistance, Sam's one thought was of his two brothers. Would they
reach the tree or the shore in safety? Fervently he prayed they
would.

The tree went around and around, as a side current caught it, and
presently the whirlings became so rapid that Sam grew dizzy, and
had to hold tight to keep from falling off.

He saw Dick catch Tom from the back and start for shore, and then
like a flash the realization of his own situation dawned upon him.
He was on the tree with no means of guiding his improvised craft,
and sweeping nearer and nearer to the rapids of which he had heard
so much but really knew so little.