"Sharks?" queried Alwyn.
"Sharks!" repeated Jasper. "Ain't seen none since I've bin on the island, an' many's the time I've watched the water an' within' I could have a swim. What d'ye say, sir. Might I go?"
Burgoyne was fired by the man's enthusiasm. It was now midnight. Allowing three hours to cover a distance of six or seven miles, Minalto ought with luck to be back well before four. This would give the party an hour and a half before dawn in which to "pack up", replace gear, remove all traces of the night's work, and regain their quarters.
"All right," agreed the Third Officer. "I'll come with you as far as the end of the bay. Wish I could do the whole thing, only the others would be scared stiff and think we'd done ourselves in. When I return I'll get myself hauled up and wait on the top of the cliff. You know the signal? Right, and don't forget to wipe out your footprints. The tide will be at quarter flood on your return."
With many other cautions and suggestions, Burgoyne accompanied the stout-hearted seaman to a spot where the reef approached to within three hundred yards of the shore.
Taking off his shoes, and slinging them round his neck, Minalto waded waist-deep into the water and struck out for the line of milk-white foam that marked the reef. Burgoyne remained at the edge of the lagoon until the phosphorescent swirl that marked the swimmer's progress was merged into the darkness. He had no indication that Minalto had reached the reef, for his white-clad form would be indistinguishable against the ever-breaking wall of foam.
Retracing his way to the cave Burgoyne slipped into the bowline and tugged three times at the rope. The signal was promptly answered, and the swaying, roundabout ascent commenced.
"Well?" inquired Branscombe anxiously, when Alwyn landed safely on the top of the cliff.
"All serene," replied the Third Officer, a little breathlessly. "We'll have to stand by for a few hours. Minalto has gone on a voyage of exploration. That chap gave me a thundering good idea. I was getting a bit tied up in knots when I found there was no way up from the beach, so he suggested walking along the reef—and he's gone and done it," he added vernacularly.
Dispatching Twill to inform Captain Blair of the alteration of plans, so that the Old Man would not be unduly anxious about their failure to return at the suggested time, the three officers prepared to make the best of their long vigil. They took fifteen minutes' shifts to tend the rope, so that should Minalto return before they expected there would be no delay in receiving his signal and hauling him up.