explained. âItâs hard going; most of the plants are mimosa, or cactus, or similar thorny shrubs and trees. But up above thereâs a kind of rain forest. Itâs much warmer there, and thereâs grass and some flowers.â
âAnd you ought to see the birds,â Joe put in. âAll kinds, and theyâre almost tame. They flew right down to us.â
Dr. Grimes nodded. âI am certain there are no other people on this island. The birds have never seen men before. We found a little river and a number of groves of papaya and banana, as well as some other fruits I believe to be a species of mango. Joe climbed one of the papaya trees. They have a smooth trunk and no lower branches, and he lost his footing and fell. Itâs quite swampy there, and he landed on his front in the mud.â
âThen we followed the stream down,â Joe said. âIt comes out on the other side of those rocks and falls to a shelf about twenty feet below, and then into the sea. You canât see it from here because of that ridge of rock.â
Dr. Grimes had brought back a bucket full of water. He hung it in the shade and looked about him. âThis is a good spot for a camp,â he said. âBut whereâs the shelter you were going to build? Iâm afraid, my dear Bullfinch, you were not as practical as we.â
âOn the contrary, weâve already made the first tool,â said the Professor complacently, and pointed to the stone ax, still embedded in the tree trunk.
All four now went to work in earnest on the shelter. Using the ax, the Professor cut two long, slender saplings, trimming away the branches to leave a fork at the top of each. With their pocketknives the boys sharpened the bottoms. Then Danny tried to push one of them into the ground.
âYou ought to have made a stone hammer,â Joe said, as Danny puffed over the work. âLetâs find a hunk of stone and make a pounding tool.â
Professor Bullfinch, wiping his streaming forehead, was standing nearby. He smiled, and held up the ax. âWhat do you think this is?â he said.
âWhy, you said it was an ax.â
The Professor turned it in his hand. âOne edge is sharp, yes, but the back is blunt. Isnât it a hammer as well?â
Danny whistled. âOh, what a dope I am!â he said.
âNot at all. You simply judged by the look of a thing, and by what people say of it. As a scientist you should keep an open mind.â
Using the back of the ax, they drove the uprights into the ground and laid another long pole across the forks. Then they cut a number of other branches and tied them along the top pole slantwise, with their ends resting on the ground.
They stood back to examine their work with pride.
âItâs not pretty,â Joe remarked, âbut itâs home. I wonder for how long?â
âNot long, let us hope,â said the Professor. âOur original plan was excellent, but I hardly expected to be marooned.â
Dr. Grimes said, âI think we ought to take stock of our supplies and see what we have. We may have to stay here for several weeks.â
They all went down to the beach, where they had left the raft and their supplies. They had saved pitifully little. There was a single blanket, and a cardboard box in which twenty K-ration cartons remained. There was the raftâs emergency chest, containing fishhooks, signal flares, a repair kit containing glue and patches, the folding bucket, a large first-aid kit, a flashlight, a compass, and fifty feet of light strong cord. There were two empty canteens, a coil of nylon rope, and a large knife with a cork handle.
There was also a waterproof sack containing something that looked like a ukulele with the neck broken off. Dr. Grimes pounced on this with an exclamation of pleasure.
âThis may prove the best tool of all,â he said. âItâs the emergency radio transmitter. Now weâll be able
Under the Cover of the Moon (Cobblestone)