"Come on!" urged Paul, "how do we start, Uncle Henry?" Uncle Henry got up on his knees and drew a long straight line in the sand with his forefinger. (1) It went up through both stars in the middle of the great bear's body, and a long way beyond. Over three times the distance between the two stars the line went beyond them. Uncle Henry put down a fair-sized pebble at the end. "There," he said, "is the tip of the little bear's tail. Go ahead and find him; but I warn you--it's a very long tail, and you'll have to imagine his legs and nose." There was a moment's silence. Then Peter said, "I can't see any bear, but I _can_ make out a dipper." "Make it," said Uncle Henry. [Illustration] When Peter finished putting down little pebbles the little dipper was very plain, just above the great bear's back. Then Uncle Henry solemnly drew an outline around the seven small pebbles. [Illustration] "Oooh, what a funny bear!" laughed Betty, when Uncle Henry's finger had finished. "His tail is so _long_!" "Bears always have _short_ tails," said Peter, looking reproachfully at Uncle Henry, as if that person was responsible. There was, however, a note of expectancy in Peter's voice. He expected a satisfactory explanation from Uncle Henry. "This bear _once_ had as short a tail as any other bear," said Uncle Henry, quite undisturbed. "Who stretched it?" inquired Paul breathlessly. "You will note," began Uncle Henry, "that the tip of the little bear's tail is a star that is right at the top of the North Pole. You can't _see_ the pole, but it's there--and long ago somebody tied the tip of the little bear's tail fast to it. As the earth turned around year after year, and the pole turned with it, the little bear was swung round and round by his tail. That would make anybody's tail stretch, wouldn't it?" There was a moment's quiet. Then Peter said roguishly, "You can't kid us into believing that, Uncle Hen--but we'll sure remember it." All Uncle Henry said was, "Your mother doesn't like you to talk slang, Peter." Uncle Henry had scored again, and knew it. "To-morrow night we'll find the dragon, and the man who drives the great bear around the pole, and his dogs, and maybe the lions and the swan," promised Uncle Henry, as he looked at his watch and stood up. "Oooh, great!" cried the trio together. "We'll have a reg'lar Noah's Ark on that sand, won't we?" said Betty. "We'll call it 'Noah's Ark in the Sky,'" Uncle Henry agreed, as the children followed him up the walk to Seven Oaks Cottage. SECOND EVENING THE HERDSMAN'S DOGS CHASE URSA MAJOR--AND THE TERRIBLE DRAGON WRIGGLES AWAY IN FRIGHT The next evening Peter, Paul, and Betty were all down on the beach as soon as supper was over. Peter and Paul had that morning made a fence of laths around the sand drawings of the two bears--big, and little, so that "Rags," their Airedale puppy, could not spoil them.