"No, we'll make it very informal," Grace remarked. "There is a little private ballroom we can engage."
So it was arranged, and the young people spent an enjoyable evening, doing some of the newest steps.
"We'll come down to the fort in the morning, and see you start for San Francisco," promised Mabel, as she said good-night to Dick.
"Will you!" he exclaimed. "That will be fine of you!"
An early morning start was made for the fort, after the airship, which had been left in Bronx Park all night, had been carefully gone over. An additional supply of gasolene was taken aboard, some adjustments made to the machinery, and more food put in the lockers.
"There are the girls!" exclaimed Dick, after they had made a successful landing at the fort, which they would soon leave on their long flight.
"Oh, so they are! I hardly thought they'd come down," observed Paul, as he waved to the three pretty girls with whom they had danced the night before.
"I wish we were going with you!" cried Mabel, as she greeted Dick.
"Oh, Mabel! You do not!" rebuked Irene.
"Well, I just do!" was the retort. "It's so stupid just staying at a summer resort during the hot weather."