"You'll have to wait until you get back, then," said Amy promptly.
"Why?" cried Nell suddenly. "There must be experts over at that Government station."
"That is so," agreed Jessie, thoughtfully. "Do you suppose they would——"
"Let's go and see," urged Nell. "I'm crazy to see the inside of that station, anyway."
"It's wireless—like the little outfit aboard the Marigold," Amy suggested.
"But so much bigger," Jessie chimed in eagerly. "If they admit visitors, let's go."
Mr. Norwood found out about that particular point for the girls and reported that if they went over to the station in the late afternoon the operator on duty would be glad to show them "the works" and give them all the information in his power.
The three friends went alone, for the collegians were off fishing that day on the Marigold. They left the little girls in Mrs. Norwood's care and slipped away about four o'clock and walked to the station, which was some distance from the bungalow colony. They had to climb the stairs in the old shaft of the lighthouse to the wireless room. The room was half darkened and they heard the snapping of the spark, and even saw the faint blue flash of it when they came to the door.
The operator, with his head harness on, was busy at his set. Jessie, at least, had spent some time trying to learn the Morse code since talking the matter over with Darry on the yacht. But although the signals the operator received were in dots and dashes, she could not understand a single thing.