At last his net was set and he baited it with care.
Then he waited.
Several small fish came up and nibbled at his bait, but not the spiral fish he was after.
"He's a shy one," thought Dave. "He's not going to be caught if he knows it."
But at last the young diver was rewarded by seeing two of the spiral fish approaching.
One apparently urged the other on, until both came into the net and began to chew at the bait, which was purposely very tough.
With all speed Dave set to work to shut the net.
This was no easy task for a single person, and in order to accomplish it the young diver had to step outside of the diving bell.
He was just finishing up the task when a strange rushing behind him caused him to turn around.
At first he could see but little, for the water behind him was churned up into a milk-white foam. Then he saw a great mass of little fishes pressing toward him.