Twice daily on each of the succeeding days Mr. McKay and his companions paid a hurried visit to the treasure-cave, and at the end of that time the bulk of the buccaneers' spoil was safely hidden in the spot chosen for its reception.

Then, with the return of the spring tides, the work of salving the yawl was resumed.

Slowly, yet without a hitch, the sunken craft was moved towards the cradle which awaited its burden, till the falling off of the tides found the yawl within ten yards of low-water mark.

"I have been thinking, pater," observed Andy one day, as they were preparing to revisit the cave.

"Thinking what, my boy?"

"Why, every journey we make to the cavern we perform practically empty-handed. Would it not be well to carry a supply of provisions with us and store them in the cave? You see, if those savages should return we might be glad of a retreat."

"Quite true, though I sincerely hope we shall not be put to such straits. However, we'll take a few barrels of provisions and some rifles and ammunition as well."

"And water?"

"Ay, but that's the rub. Water is heavy to carry about, and as far as I can see there's no spring or brook within a mile of the entrance to the cave."

"I wonder if there's water to be found above the cliffs in which lies the mouth of the tunnel. I noticed several small streams when I climbed the mountain, though, of course, I didn't ascend on that side. I think I'll explore that slope as soon as possible."