“This is no laughing matter!” Jessie declared. “How can you, Amy? Darry and Burd——”
At that instant a wild shout rose from the two collegians and from the lifeguard who had rowed so energetically to their rescue. Amy broke off suddenly in her nervous laughter.
“He’s got ’em!” she shrieked. “Oh! Oh!”
But, strange though it seemed to her, Jessie realized that Darry and Burd were laughing. And the astonished expletives that the guard emitted did not seem to show fear.
“What is the matter?” Jessie demanded, standing up.
“And where is the shark?” asked Amy, likewise scrambling to her feet.
The boys were hanging to the side of the guard’s boat. He was fishing for something in the water with an oar. He finally got the object and raised it aloft.
“What is it?” repeated Jessie.
“The shark!” shrieked her chum.
It actually was all the shark there was—a pair of partly deflated swimming wings which, carried here and there by the wind, had looked like a shark’s dorsal fin at a distance.