“Wow!”

The cry came from Hardware.

“Holy mackerel! Ralph!”

“Great Scott!”

Ralph spun the wheel over with every ounce of power at his command. The rapids strained and tore at the rudder frantically. It was as if they wished to aid and abet in the destruction of the River Swallow. For dead ahead of the craft had loomed suddenly a sinister, menacing object that had caused the wave of panic to sweep over the boys on the bridge of the motor boat.

Big Nigger Rock!

Revealed by the rays of the search-light as suddenly as if it had been thrust upward by an unseen hand from the bottom of the rapids, the black boulder that bore the name dreaded by rivermen had appeared.

“We’re goners!” The cry came from Malvin.

He threw off his coat, and Ralph noted with astonishment, even as excited as he was, that the man had on under that garment a life preserver!

But the boy had not a moment to ponder on this strange fact, although it looked almost as if Malvin knew, by some marvelous instinct, that something was going to happen and had prepared for it. All the boy’s energies just then were centered in one task: to keep the River Swallow from being shattered into kindling wood against the gleaming, spray-wet sides of the Big Nigger.