But at last Peter was rewarded. There, just above the water, was a splendid platform of mud and grass and sticks. A great many sticks were carefully laid as soon as the platform was above the water, for Paddy was very particular about this. You see, it was to be the floor for the splendid room he was planning to build. When it suited him, he began to pile mud in the very middle. Jerry puzzled and puzzled over this. Where was Paddy's room going to be, if he piled up the mud that way? But he didn't like to ask questions, so he kept right on helping. Paddy would dive down to the bottom and then come up with double handfuls of mud, which he held against his chest. He would scramble out onto the platform and waddle over to the pile in the middle, where he would put the mud and pat it down. Then back to the bottom for more. And so the mud pile grew and grew, until it was quite two feet high. "Now," said Paddy, "I'll build the walls, and I guess you can't help me much with those. I'm going to begin them tomorrow night. Perhaps you will like to see me do it, Cousin Jerry." "I certainly will," replied Jerry, still puzzling over that pile of mud in the middle. CHAPTER XI Peter Rabbit and Jerry Muskrat Are Puzzled. Jerry Muskrat was more and more sure that his big cousin, Paddy the Beaver, didn't know quite so much as he might about house-building. Jerry would have liked to offer some suggestions, but he didn't quite dare. You see, he was very anxious not to displease his big cousin. But he felt that he simply had got to speak his mind to someone, so he swam across to where he had seen Peter Rabbit almost every night since Paddy began to build. Sure enough, Peter was there, sitting up very straight and staring with big round eyes at the platform of mud and sticks out in the water where Paddy the Beaver was at work. "Well, Peter, what do you think of it?" asked Jerry "What is it?" asked Peter innocently. "Is it another dam?" Jerry threw back his head and laughed and laughed. Peter looked at him suspiciously. "I don't see anything to laugh at," said he. "Why, it's a house, you stupid. It's Paddy's new house," replied Jerry, wiping the tears of laughter from his eyes. "I'm not stupid!" retorted Peter. "How was I to know that that pile of mud and sticks is meant for a house? It certainly doesn't look it. Where is the door?"