“Ah! Who are they?”

“Well, Captain Remington is a prisoner in Germany, but Mrs. Remington is still at home. She has her sister, Miss Beryl Gaselee, staying with her. Perhaps you’ve heard of her. She’s a great flying-woman.”

“Oh, yes!” replied the stranger. “I’ve seen things about her in the papers. Does she fly much?”

“A good deal. Mr. Ronald Pryor, to whom she’s engaged, invented her machine; he calls it ‘The Hornet,’ and he keeps it here—in a corrugated iron shed in the park, close to the house!”

“How interesting!”

“Yes. And the pair often go up at nights,” went on the young woman. “Mother and I frequently hear them passing over the house in the darkness.”

“Do you always hear them go up?” asked the stranger suddenly.

“No, not always. They go over sometimes without making a sound.”

“That is at night, I suppose? In the day you can always hear them.”

“Yes. Always.”