Linda eagerly unfastened the strings and lifted out a pair of white flannel knickers, with a jaunty blue sweater and helmet of knitted silk, just the color of her eyes. The whole costume was charming, and a lovely change from the dark riding breeches she had been using for flying.

"It's perfect, Aunt Emily!" she cried, realizing for the first time that she had never cared for what she was now wearing. "And it was so sweet of you to think of getting it for me!"

"I never could see why girls have to look masculine," replied her aunt. "Of course I can understand that skirts are impractical, but they make these suits so pretty now-a-days. And I want you to look nice the very first minute you arrive at Green Falls. First impressions are always so important and there is sure to be a crowd there to greet you."

Linda was only too delighted to wear it the next day, which dawned clear and warm for her flight. Miss Carlton left early in the morning, by train, so that she would be at Green Falls in plenty of time to welcome the flyers.

Ralph came over for Linda about half-past nine. Carrying their lunch, the young people started on their first real adventure in the air.

The young man, too, wore a new suit of spotless white flannel, and, as they walked, tall and slender and straight, they made perhaps the best-looking pair of flyers in America. But neither was conscious of that; both were too much excited about their first trip in the air to give even a passing thought to their appearances.

"Are you sure that you have the precious necklace?" asked Linda, as they made their way across the field in back of her house.

"Yes, indeed," answered Ralph. "I went to the safe-deposit vault this morning to get it. That was one reason why I didn't want to start early. I had to wait for the bank to open."

"Kit would be horribly disappointed if we didn't bring it," returned Linda. "I honestly think she loves those pearls as much as I do my 'Pursuit'!"

"Queer taste," remarked the boy. "If I had them, I'd sell them and buy a biplane!"