"No, it isn't, dear!" said Nan, quickly putting her arms around her cousin. "Flossie does things so quickly, sometimes, that no one can watch her. But we'll get her out, for the water isn't deep."
It was deep enough though, on that side of the boat, to be well over Flossie's head, and of course, plunging down from the height she did, she at once went under water.
Snap seemed to understand what had happened, and to know that his services were needed, for he gave a bark, and made a rush for the rail.
"Don't let him jump in!" cried Mr. Bobbsey to Bert. "If Harry can get her, Snap might only make trouble. Hold him back, Bert, while I get the rowboat."
Mrs. Bobbsey, with one arm around Freddie, had rushed to the rail to look down. She saw Flossie come to the surface, choking and gasping for breath, and then saw Harry, who had gone under, but who had come up again, strike out for the little girl.
"Oh, save her!" gasped Mrs. Bobbsey.
"He will!" said Bert. "Harry's a fine swimmer. Come back, Snap!" he called to the big dog, getting his hands on his collar, just in time, for Snap was determined to go to the rescue himself. He whined, pulled and tugged to get away from Bert.
"Help me hold him!" cried Bert to Nan.
"I will!" she answered, glad to be doing something. Together the two older Bobbsey twins managed to keep Snap back. Dorothy, too, helped, for Snap was very strong.
"Did Flossie go after a fish?" asked Freddie, and he asked it in such a queer way that it would have caused a laugh at any other time. Just now every one was too frightened to laugh.