"I don't see any smoke," said Russ. "But there's a fire somewhere."
"What is that mast with the wires up there for, Russ?" asked his sister, looking upward.
"Oh! Daddy told me that was the wireless mast," Russ exclaimed.
"But that can't be," said Rose warmly. "It has wires hitched to it; so it can't be wireless."
"You know, Rose, they talk from ship to ship, and to the shore, by wireless."
"What does that mean?" returned the girl. "A telegraph?"
"That's it!" cried Russ. "And I guess that is what the crackling is. Listen!"
"Isn't it a fire, then, that we hear?" for the crackling sound continued.
"That's the electric spark," said her brother eagerly. "That is what it must be. Let's peep into this room, Rose. It is where the telegraph machine is."
There was a window near by, but as they approached it the two children found a door in the wireless house, too, and that door was open. A man in his shirt-sleeves and with a green shade over his eyes and something that looked like a rubber cap strapped to his head was sitting on a bench in front of some strange looking machinery.