In the morning the boys learned that their motor ship would arrive that evening, and they felt much relieved. Mr. Glassford had not become worried, but had spent his time renewing his acquaintance with balloonists and airship men, who were now thronging into Park Haven.

As for Professor Snodgrass, he was at home in any place. Give him his insect net and not interfere with him, and he asked nothing better. He roamed about the city and out at the carnival grounds, making capture after capture.

The motor ship arrived that evening and Mr. Glassford had men in readiness to transport it to the grounds. A large tent had been set aside for the use of the owners of the Comet, this being included in their entry fee.

“We’ll start putting it together in the morning,” said Mr. Glassford, when the last box had been brought from the railroad station. “Then we’ll have some trial trips. I hope it works as well here as it did in Cresville.”

The next few days were strenuous ones, for it was no light task to assemble the airship, though Mr. Glassford hired several men to aid him and the boys. But at length it was once more together, looking as it had under the canvas at Cresville. All that remained was to inflate the big bag, and this Mr. Glassford at once arranged to do.

“She isn’t damaged a particle,” he said as he went over the machinery inch by inch. “She’s as good as she was when we first made her. We can make a trip to-morrow. I’ll generate gas all night to-night.”

Meanwhile, exhibits were constantly arriving at the carnival grounds, and the place was beginning to assume a gala appearance, while from the explosions of motors in the various tents and buildings, as the inventors tried out their machines, it sounded as if a battle was in progress.

The boys hardly ate any breakfast the next morning, so eager were they to make another trip in their airship. They hurried down to the tent, where Mr. Glassford had remained all night, superintending the making of the gas.

“Is it all right?” asked Jerry eagerly.

“Seems to be,” was the inventor’s reply. “Are you ready to go up?”