But he pointed only to the strange, curved stick and clung to her, in terror. All the while he jabbered wildly. Quack Quack desired to quiet his fear, so she flung the stick far out over the river, as he had done. Then again the big stick swished through the air, turned about and whirled gently back, striking her arm. Then it fell at her feet. Whereupon Laughing Boy screamed and ran into the Cave. Then a great fear assailed Quack Quack and she added her cries to his. And all the Cave People hurried to her side to learn the cause of so much trouble. Again the strange stick was hurled toward the river, and once more it returned. And all the Cave People marveled and were afraid. For they could not understand a stick that returned when it was thrown. Strong Arm only was brave enough to touch it with his fingers. His face bore a strange wonder that such things could be possible to a mere stick. And he carried it to his cave, where he hid it among the rocks, under the dead leaves. But when the nuts were gone and the season of plenty had passed away, and there was need for the Cave People to hunt, he brought it forth again. After many seasons, a flat stick, curved in the manner of the one first found by Laughing Boy, came to be used as a weapon by the Cave People. Perhaps you have seen the painted boomerangs sold in some of our stores to-day. They are the same shape as those first used by the ancient Cave Dwellers. A small pasteboard boomerang, cut the right size and shape will interest the children. When struck with a lead pencil, it will whirl through the air and return, just as the larger and more formidable boomerangs did when thrown at their enemies by the Cave Dwellers many thousands of years ago. After a time the alarm and excitement caused by Laughing Boy’s discovery of the first rude boomerang, died away. The strange stick no longer menaced them, and the Cave People returned to their feasting and their slumbers. And Laughing Boy and his young friend, The Fish, resumed their play. They chased each other up and down the Hollow or concealed themselves in the long grass that lined the river bank. At each discovery they tossed and rolled over and over again, like puppies, wild with the exuberance of young blood. It was one of their great pleasures to lie chattering in the grass on the top of the river bank and roll, tumbling, down into the clear waters. Then, amid a great splashing and much laughter, to clamber out and up the slope again. Thus the children of the Cave Dwellers romped and grew strong, during the season of plenty, in the days of old. One day it chanced that Laughing Boy stumbled over a large cocoanut, during his frolics with his young friend. He seized it in his arms and danced about, jabbering with glee, that his friend might know the treasure he had found.