Frank and Bob nodded approval. Their eyes were shining. Mr. Hampton, Mr. Temple and Colonel Graham showed startled interest. Della leaned forward close to Frank and looked at him reproachfully, a hand on his arm.
“And you never told me a thing about it,” she said.
“Didn’t have any time to tell you,” whispered Frank, in an undertone.
Mr. Hampton was speaking.
“Where did you see this plane, Jack?”
“Well, Dad,” said Jack, “it was this way.” Then he paused and looked at his chums. “Shall I tell?”
“Go ahead, Jack,” urged Frank.
Bob nodded approval.
With that Jack told as briefly as possible the circumstances of their day’s adventure, and also spoke of the recent interference in their radio receivers by a sharp and continuous dash sounded over a wave 26 length of 1,375 meters. A frown of growing concentration fastened on Mr. Temple’s brow as Jack proceeded. When it was apparent that Jack had concluded, Mr. Temple leaned forward.
“I suspected there was something mysterious about that man,” he said.