Ab hurled the spear as the Zulu of later times might hurl his assagai, as strongly and as well, but the distance was overmuch for spear throwing with good effect, and the flint point pierced the wood so lightly that the weight of the long shaft was too great for the holding force and it sank slowly to the ground and pulled away the head. A wild beast struck by the spear at such distance would have been sorely pricked, but not hurt seriously. "Now take the plaything," said Old Mok, "and throw the little shaft at the tree with that." Ab did as he was told, and, poor marksman with his new device, of course missed the big tree repeatedly, broad as the mark was, but when, at last, the bolt struck the hard trunk fairly there was a sound which told of the sharpness of the blow and the headless shaft rebounded back for yards. Old Mok looked upon it all delightedly. "It may be there is something to your plaything," he said to the young man. "We will make a better one. But your shaft is good for nothing. We will make a straighter and stronger one and upon the end of it will put a little spearhead, and then we can tell how deeply it will go into the wood. We will work." For days the two labored earnestly together, and when they came again into the open they bore a stronger bow, one tapered at the end opposite the natural tapering of the branch, so that it was far more flexible and symmetrical than the one they had tried before. They had abundance of ash and yew and these remained the good bow wood of all the time of archery. And the shaft was straight and bore a miniature spearhead at its end. The thought of notching the shaft to fit the string came naturally and inevitably. The bow had its first arrow. An old man is not so easily affected as a young one, nor so hopeful, but when the second test was done the veteran Mok was the wilder and more delighted of the two who shot at the tree in the forest glade. He saw it all! No longer could the spear be counted as the thing with which to do most grievous hurt at a safe distance from whatever might be dangerous. With the better bow and straighter shaft the marksmanship improved; even for these two callow archers it was not difficult to hit at a distance of a double spear's cast the bole of the huge tree, two yards in width at least. And the arrow whistled as if it were a living thing, a hawk seeking its prey, and the flint head was buried so deeply in the wood that both Mok and Ab knew that they had found something better than any weapon the cave men had ever known!