Laddie, nothing loath, ran after his twin sister. They raced down the hill and came to the little gully into which the animal with the bushy tail had disappeared. The end of that gully was the open mouth of a culvert under the road. "Did he go in there?" Laddie demanded. "Did he go into that hole, Vi?" "He must have," declared Violet. "It must be his home. It's a burrow." "But he wasn't a bunny. Bunnies have burrows," objected Laddie. "I guess other animals can have burrows, too," said his twin. "And he was lots prettier than a rabbit." "He was that," admitted the excited Laddie. "It wasn't a rabbit, of course. Rabbits aren't red." "Let's find the other end of the hole," Vi said eagerly. "We'll stop both ends up and then--and then----" "Well, what then?" her twin demanded. "Why, we can catch him then," said Vi, rather feebly. "That is, we can if he wants to come out." "I suppose we can. If he doesn't take too long. Let's," said Laddie, and he ran across the road and looked to see if there was another opening to the culvert. But as it chanced, this was an old and unused drain, and the farther mouth of it was stopped up. This made the hole a very nice den for the little animal the Bunker twins had seen go into it. But neither Laddie nor Vi had any idea as to what the creature was. "I'm going to get a stick and poke him out," announced Laddie. "You can't poke him out when there is no other hole over there," rejoined Vi very sensibly. "I'll poke him till he comes out then," said Laddie, looking all about but not starting to find a stick. To tell the truth he was at the end of his resources. He did not know how to get at the little red animal. "Anyway," he said at last, "maybe he didn't run in here after all." "He did so, Laddie Bunker!" cried Violet. "I saw him." This seemed final. Laddie looked all around again, quite puzzled as to what to do next. There was no backing out of a thing when once it was begun--not with Vi Bunker! She always insisted upon going on to the end, no matter what that end might be. "Well," her twin said at last, "I s'pose I'll have to go in after him." "How can you?" asked Vi promptly, but excitedly, too. "I can crawl into that hole----" "Isn't it too small?" "Well, I'm not so big," replied Laddie. "I guess I can do it. I'm going to try." He knelt down before the round mouth of the culvert. It was a piece of drainpipe with a rough rim at the edge of the hole. Laddie poked his head into the hole. "It's as dark as the inside of your pocket, Vi Bunker," he said, in a muffled voice. "Shall I run get a candle?" asked his sister. "No," sighed Laddie; and even his sigh sounded funny from inside the pipe. "If you do they'll want to know what you want it for. And if we are going to catch this--this whatever-it-is, we want to catch it all by ourselves. Wait."