That night Shann slept in the deep fog of bodily exhaustion. There were no dreams, nothing but an unconsciousness which even a Throg attack could not have pierced. He roused in the morning with an odd feeling of guilt. The water hole he had scooped in the valley yielded him some swallows tasting of earth, but he had almost forgotten the flavor of a purer liquid. Munching on a fistful of moss, he hurried down to the shore, half fearing to find the shell gone, his luck out once again. Not only was the shell where he had wedged it, but he had done better than he knew when he had left it exposed in the night. Small things scuttled away from it into hiding, and several birds arose--scavengers had been busy lightening his unwelcome task for that morning. And seeing how the clean-up process had gone, Shann had a second inspiration. Pushing the thing down the beach, he sank it in the shallows with several rocks to anchor it. Within a few seconds the shell was invaded by a whole school of spiny-tailed fish, that ate greedily. Leaving his find to their cleansing, Shann went back to prospect the pile of raft material, choosing pieces which could serve for an outrigger frame. He was handicapped as he had been all along by the absence of the vines one could use for lashings. And he had reached the point of considering a drastic sacrifice of his clothing to get the necessary strips when he saw Taggi dragging behind him one of the jointed legs the wolverines had put in storage the day before. Now and again Taggi laid his prize on the shingle, holding it firmly pinned with his forepaws as he tried to worry loose a section of flesh. But apparently that feat was beyond even his notable teeth, and at length he left it lying there in disgust while he returned to a cache for more palatable fare. Shann went to examine more closely the triple-jointed limb. The casing was not as hard as horn or shell, he discovered upon testing; it more resembled tough skin laid over bone. With a knife he tried to loosen the skin--a tedious job requiring a great deal of patience, since the tissue tore if pulled away too fast. But with care he acquired a few thongs perhaps a foot long. Using two of these, he made a trial binding of one stick to another, and experimented farther, soaking the whole construction in sea water and then exposing it to the direct rays of the sun. When he examined his test piece an hour later, the skin thongs had set into place with such success that the one piece of wood might have been firmly glued to the other. Shann shuffled his feet in a little dance of triumph as he went on to the lagoon to inspect the water-logged shell. The scavengers had done well. One scraping, two at the most, would have the whole thing clean and ready to use.