Then, regardless of the shower of stones, he started to swim in toward the shore where he saw a place that they could get out of the water.

But another stone whizzed down, and there came a broken, strangling cry from Harry.

“What happened, old fellow?” asked Frank, who was now a bit in advance. “Did the cur hit you?”

No answer.

Frank looked around, and found Harry had disappeared from view.

The dwarf on the bluff danced and howled with fierce delight.

As quickly as he could, Frank turned about, swam back a little and dived. It did not require a great effort to go down, for now his clothes were thoroughly wet, and he sank easily.

As soon as he was below the surface, keeping his eyes open, he saw his friend lying on the bottom. The water was so clear that there was not the least difficulty in this.

Down Frank went till he reached Harry, whom he grasped. Planting his feet on the bottom, he gave a great leap and shot upward.

The water was not more than eight feet deep, and he quickly reached the surface, immediately striking for the shore.