"Go it, boys!" shouted Lambert. "Do your best!"
"I bet on Joe," said Ferry.
"I bet on Darry," added Biggs.
Hardly had the wager been made when Joe shot ahead. Slowly but surely he drew away from his cousin.
While the sport was going on nobody had noticed a large tree that was drifting rapidly down the middle of the river. Now, however, Lambert saw the danger.
"Look out!" he cried wildly. "Look out! A tree is coming down upon you!"
Joe heard the cry, and looking up the stream managed to get out of the way of the big piece of driftwood. But Darry was not so fortunate, and in a twinkling the youth was struck and carried out of sight.
This accident came so quickly that for the moment nobody knew what to do.
"Darry! Darry!" cried Joe. "Where are you?"
"He went under!" shouted Lambert. "The tree branches struck him on the head."
"He'll be drowned!" gasped Biggs. "What shall we do?"
By this time the tree had drifted past the point where the soldiers were stationed. Joe had now