"Right-o," replied Mostyn, glad of the opportunity of "feeling the kick of the helm" again. "What's the course?"

"Sou' by east," said Alwyn, handing the Wireless Officer the pocket compass. "Don't watch the needle; steer by a star and check your course occasionally. You'll find it much simpler than straining your eyes in the starlight. Call me in about a couple of hours—earlier if you want me."

Giving a glance astern Burgoyne saw that the line of foam was almost invisible, the island entirely so. If the breeze held—he was not anxious for it to increase in force—the secret base would be forty or fifty miles astern by daybreak.

"Now, Miss Vivian," he said cheerily. "We're going to fix you up before Jasper and I turn in. Are you hungry? There's some ship's biscuits going. That's our staple fare for a bit, I'm afraid. You're dry, I hope? Externally, I mean. Good! Now we'll rig you up a tent."

Lashing the loom of one of the oars to the mast at a height of six inches above the mast-clamp and resting the blade in a roughly-made boom-crutch, Burgoyne and Minalto deftly stretched a sheet of canvas over the oar, securing the ends to the thwarts.

"There you are," said Alwyn. "As we say in the Merchant Service you'll be as snug as a—an insect in a rug. We can't allow you much head-room, in case the foot of the sail flies over. Now Jasper and I are turning in. If you want me just shout and I'll be up in a brace of shakes."

CHAPTER XX

The Voyage

Within two minutes Burgoyne was sleeping the sleep of sheer exhaustion, nor did he awake until the slanting rays of the early morning sun shone in his face, as the boat heeled to the now beam wind.