“They would shift their position, Captain. We must hold them to it and track them down. You think that we should sight them at two bells in the middle watch. I’ll step down and hear what they have to say, but unless it is vital I shall not answer them.”

I found the instrument tapping sharply as the second officer had said. The words spelled out “Colin Ross,” the name of the officer upon one of their relief ships, as they had already informed me. Repeated again and again, it gave me in the end an idea I was quick to act upon. They must think the relief steamer broken down, I said. Such should be the first card I had to play.

“Fordibras,” I signalled, and again “Fordibras,” and then upon it the simple words, “propeller shaft broken—all hands at work—repaired to-morrow—cable eight bells.”

I say that I repeated the message, as one almost invariably is called upon to do when the instrument is wireless and no receivers have been tuned to a scheme. A little to my astonishment, there was no reply whatever. As I had ceased to speak to the Diamond Ship yesterday, so she had ceased to speak to me to-night. A renewal of the call earned no better reward. I fell to the conclusion that the news had been so astounding that the man who received it went headlong to the captain of the vessel, and that an answer would be returned anon. So half an hour passed and found me still waiting. It must have been nearly one o’clock by this time. I recollect that it was seventeen minutes past one precisely when our forward “look-out” discerned the lights of the Diamond Ship upon a far horizon, and Captain Larry burst in upon me with his splendid news. Now, surely, had I no further need of messages. You may judge how I followed him to the deck to feed my eyes upon the spectacle.

“Have you just seen her, Larry?”

“This very instant, doctor. I could not have fallen down the stairs quicker.”

“Does McShanus know?”

“He’s shaking all over—like a man with an ague. I sent him to the cabin for brandy.”

“It could be no other ship, Larry?”

“How could it be, sir? This is no course for anywhere. She’s what we’re after, right enough.”