By this time Snap, chasing after the strange dog, was half-way across the street in front of the railroad station, but Snoop, the black cat, was not in sight.  Flossie and Freddie, having come to the end of the platform, stopped, for they had been told not to cross a street without looking both ways for wagons or automobiles.  And it was while they had thus come to a stop that their father came up to them.

“Don’t go any farther,” said Mr. Bobbsey.

“But we want to get Snoop!” cried Freddie.

“And Snap will be lost, too,” said Flossie, ready to cry.

“That’s all right.  We’ll get them both.  Snap won’t go far.  I’ll bring him back.  Where’s your whistle, Bert?”

Bert had followed his father, while Nan stayed with her mother to help get Dinah up.  Dinah was so fat that once she sat down flat on the platform she could hardly get up alone.  It was not often, of course, that she sat down that way.  This time it was an accident.  So while Mrs. Bobbsey and Nan were helping up the fat cook, Bert gave his father a tin whistle he carried for calling Snap when the big dog was far away.

Mr. Bobbsey blew a loud blast on the whistle.  Snap, who was now running down the street after the strange dog, turned and looked back.  But he did not come toward the station.

“Come here, Snap!” called Mr. Bobbsey.  “Come here at once!” And he said it in such a way that Snap knew he must come.  Again the whistle was blown and Snap, with a last bark at the dog which had made so much trouble, turned and came running back.

“I wish you could call my dog back as easily as you called yours,” said the man who owned the animal Snap had been chasing.  “But I guess I had better go after him myself,” he added.  “Your dog and mine don’t seem to get along well together, and I think it’s Rover’s fault.  But he has never traveled in a train before, and perhaps he was frightened.”

“Our dog and cat like to ride in a train,” said Flossie, patting the head of Snap, who was wagging his tail.

“Oh, but we’ve got to find Snoop!” cried Freddie, who had, for the moment, forgotten about the black cat.  “Come on Flossie.”

The two younger Bobbsey twins were about to set off on a search for their pet when they saw Tommy Todd coming toward them, with the black cat in his arms.

“I’ve found her for you,” he said, smiling.  “She’s all right, only a little scared I guess, ’cause her heart’s beating awful fast.”

“Thank you, little man,” said Mr. Bobbsey.

“Oh, Snoop!  Did the bad dog bite you?” asked Flossie, putting her arms around the cat as Tommy held her.

“No, she isn’t bitten,” said Freddie, as he looked carefully at Snoop.  “Where did you find her, Tommy?”

“She was hiding behind some boxes down by the express office.  I saw her go that way when the two dogs ran across the street, so I looked there for her.  She didn’t want to come out but I coaxed her.  I like cats and they always come to me.”