for the word 'north.'"

The young man's eyes suddenly gleamed as he turned towards the
instrument, but Crawshay smiled with grim understanding.

"Let me tell you that I understand the wireless," he said
impressively. "You will give the message exactly as I have told you or
we finish things up on the spot. I think you had better. It's a matter
of compulsion, you know--in fact I'll explain matters to Mr. Jocelyn
Thew, if you like."

The young man's eyes were round with amazement.

"Jocelyn Thew!" he repeated.

"Precisely. You needn't look so terrified. It isn't you who have given
away. Now what are you going to do?"

The young man swung round to his instrument. Crawshay released his
hand, stepping a little back.

"You are going to send the message, then?"

"Yes!" was the sullen reply.

"Capital!" Crawshay exclaimed, cautiously subsiding into a chair. "Now
you'll go on every ten minutes until I tell you to stop."

Robins bent over his task, and again the crackling waves broke away
from their prison. Once his finger hesitated. He glanced