"What has happened?" cried Mrs. Bobbsey, as she heard the screaming,
and the splashes in the water. "Have any of the children fallen in?"
For she had gone to another part of the deck, with Dinah, out of sight
of the twins for a moment. Now she came hurrying back, and a single
look showed her that the children were all safe.

"What has happened?" she asked again.

"As nearly as I can figure out," said Mr. Bobbsey, "Bert caught a
fish, Snoop tried to get it and fell into the water, and now Snap has
gone in after Snoop."

"And Snap has my doll! She'll get all wet--she'll be drowned!" cried
Flossie.

"I'll get her for you," offered Harry. But just now they were all
anxious to see what Snap and Snoop did. Mr. and Mrs. Bobbsey and the
children looked over the side of the houseboat. They saw the black cat
swimming about in the lake, and Snap, who was a fine water-dog, was
paddling toward her.

"Hadn't you better stop the boat?" asked Mrs. Bobbsey, for the
Bluebird was slowly floating away from the dog and the cat.

"Yes, I guess it would be best," said Mr. Bobbsey. So he called out:

"Captain! Captain White! Stop the boat! Something overboard!"

Down in the little motor room Mr. White heard the shout, and he at
once shut off the gasoline engine. Then he came up on deck as fast as