“Hush! Don’t make so much noise! You’ll wake Baby May!” whispered Flossie, for Freddie had shouted his request.

“Well, I can’t get the gate open!” he repeated.

“I’ll help you, but keep quiet!” commanded Flossie. “Don’t wake the baby!”

The front gate stuck sometimes, but Flossie knew that she and Freddie together could push it open. So, leaving the baby carriage with May in it on the sidewalk, the little girl went to help her brother.

Now, as it happened, the sidewalk ran a little downhill just at this point. And Flossie, not knowing it, did not put the brake on the baby-carriage wheels. So, as soon as she walked away, the carriage, with Baby May in it, started to roll toward the street at the point where there was a slanting place to allow Mr. Bobbsey’s automobile to come up over the curbstone.

Down into the street rolled the carriage with the sleeping baby in it, going faster and faster. And up the street, running very fast, came a team of horses hitched to an empty coal wagon. The rumble of the big wagon made Flossie and Freddie, pushing in order to open the gate, look around.

“Oh, look!” shouted Freddie. “It’s a runaway! There’s nobody in the wagon!”

This was true, and the horses were running faster and faster as they came on up the street toward the Bobbsey house.

“A runaway! A runaway!” cried Freddie, jumping up and down in his excitement.

It was then that Flossie thought of Baby May. She gave one look toward the carriage, and saw it rolling across the street, almost in the path of the dashing horses and the rumbling coal wagon.