"Not a step, Miss Columbus, until I'm enlightened."

"Oh, Crusoe, can't you see? It is so extremely simple that I'm ashamed of our stupidity. We've but to stretch our coil of wire between these two trees, throw the canvas over it and weight the bottom with rocks to hold it in place."

Sybil sighed.

"It was too easy," she admitted. "I never could guess an easy conundrum; but give me a hard nut to crack and I'm a regular squirrel."

They returned to the beach for the canvas and wire and Orissa took several of the clips, with which to fasten together the ends of their tent. Ascending once more, this time heavily loaded, to the group of bananas on the bluff, they proceeded to attach the wire to two of the trees. The plane-cover was large enough to afford a broad spread to their "A" tent and when the lower edges were secured by means of heavy stones, and the scattered rocks cleared away from the interior, their new domicile seemed roomy and inviting.

Their next task was to fetch the aluminum chest from the beach, and after they had lightened its weight by leaving in the boat all the tools except the hatchet and a small hack saw, they were able to carry the chest between them, although forced to make frequent stops to rest.

"The lack of a bedstead worries me most," remarked Sybil. "I don't like the idea of sleeping on the bare ground. How would it do, Ris, to build a stone bed—something like an altar, you know, with a hollow center which we could fill with sand?"

"That is a capital idea, Crusoe, and will help clear our front yard of some of those flat stones. They are mostly slate, I think, instead of rock formation. Heave-ho, my hearty, and we'll do the job in a jiffy."

The girls lugged into the tent a number of stones of such size as they could comfortably move, and then Orissa, who could put her hand to almost any sort of work, planned and built the extraordinary bedstead. It was laid solid, at first, but when about a foot from the ground she began to extend the sides of the pile and leave a hollow in the middle. This hollow they afterward filled with sand, carrying it in their dress-skirts from the beach. When finally the "Altar to Morpheus"—as Sybil persisted in calling it—was completed, they spread their blankets upon it and it made a very comfortable place to sleep.