“Too risky,” decided Bart.

“I’ll chance it,” declared Stumpy.

“We’ll wait a while,” Bart decided. “We may come down without doing that.”

But there did not seem much chance of it. The big balloon was still in the midst of the clouds. Which way they were going the boys had no means of knowing. They could see nothing but the mass of gray vapor, which, now and then, swirled aside long enough to disclose the black bag above their heads.

Meanwhile there was great excitement on the fair grounds. The crowd ran to and fro vainly seeking some means of bringing the balloon down. Word was quickly sent to the boys’ parents and relatives, and they came hurrying to the place, well nigh distracted. By this time the airship was a mere speck in the heavens. A little later it disappeared above the clouds.

There were some threats of arresting the manager of the enterprise, but wiser counsel prevailed. It was shown that the accident was unavoidable. The catch that fastened the wire cable to the drum had become loosened by the many ascensions and let the rope slip away.

“There’s no danger,” the manager declared, but he had hard work to make any one believe him. Indeed his own drawn face showed he was alarmed for the safety of the boys.

“They’re bright lads,” he insisted. “One of my helpers was explaining to them the other day about the valve cords. They will pull them and the balloon will come down. It may sail a few miles from here, but they’ll be all right.”

“Suppose they pull the wrong cord?” asked Mr. Wilding who with Bart’s and Fenn’s parents, and Frank’s uncle had gathered about the manager.

“Oh, they wouldn’t do that,” said the owner of the balloon. “They’re too smart for that.”