"Have you got it still?" besought Pamela.
"No, I gave it to my superior officer. But if it is of such importance as you say I could get it examined on your behalf. I'll speak to my Colonel about it. It's worth investigating."
"Pam!" said Avelyn impulsively, bending her head and whispering in her friend's ear, "do you know, I believe it would be the best thing in the world to tell Captain Harper what you've told me this afternoon. He'd know better even than Mother what you ought to do."
"You tell him—I daren't," faltered Pamela.
If Captain Harper had been astonished before, he was doubly amazed now.
"Great Scott! It's the very thing I've been on the scent of for this six months!" he ejaculated. "We guessed there was a wireless somewhere over here, but never could locate it. And to think I owe it to you kids! Pamela, you're a true loyal little Englishwoman! I think you'll find you'll pretty soon be rid of that precious uncle of yours."
"What must I do about it?" asked Pamela, who was half crying.
Captain Harper did not at once reply. He seemed cogitating. Then his face cleared.
"Nothing at present," he replied. "I pledge you all on your word of honour to mention this business to nobody. We'll leave the wireless where it is, and get the messages if possible—that's our game! Pamela, could you manage to learn the Morse code if I taught you?"
"I'd try."