"No," agreed Mr. Bobbsey with a smile. "We don't. I'll go see about it,"
and off he went, followed by Bert. Nan, with Flossie and Freddie, had
already joined the group of children down near the road that extended
along one edge of the picnic grove.

As Bert and his father neared the place, a loud, hissing sound was heard
and a white cloud of steam shot into the air, while the little ones
screamed and scattered.

"What's that?" cried Bert.

"I hope those youngsters don't go too near!" murmured Mr. Bobbsey. "The
safety valve of his steam engine is blowing off. He's got too much
pressure on. It may be dangerous," and Mr. Bobbsey broke into a run,
which Bert imitated as well as he could with his shorter legs.

However, there was no great danger. As Mr. Bobbsey had said, the safety
valve of a steam engine, on one of the trucks which carried the
merry-go-round outfit, was blowing off, and a short, stout man, with a
very red face, and a lanky boy, wearing ragged clothes, were working
about the engine.

"Keep back, children! Keep back!" called Mr. Bobbsey, as he reached the
road. "This merry-go-round isn't going to be set up here. Keep back out
of danger!"

"That's what I wish they'd do, mister!" said the red-faced man in no
very friendly voice. "They're under foot, and some of 'em may get
stepped on. I've got trouble enough without a bunch of kids getting in