The ball lay bobbing about a yard away and he grabbed it.

Sawyer turned and struck out across the tank, only his head above water.

Steve, thoroughly angry, aimed at him, changed his mind and swam after him, to the awed delight of the others.
Sawyer, thinking he had removed himself from danger, turned at the side of the tank to look back.

The next thing he knew the ball struck him fairly on the nose, and, with a howl of pain and surprise, he disappeared under the water.
"Swim, Edwards!" shrieked the youngsters.

"He'll get you!" Steve did turn away, but it seemed too much like running and so he paused, treading water there, while the angry face of Sawyer popped into view again.