It was dreadful! Jerry looked over to his house, of which he had once been so proud. He had built it with the doorway under water. He had felt perfectly safe there, because no one excepting Billy Mink or Little Joe Otter, who can swim under water, could reach him. Now the Smiling Pool had grown so small that Jerry's house wasn't in the water at all. Anybody who wanted to could get into it. There was the doorway plainly to be seen. Worse still, there was the secret entrance to the long tunnel leading to his castle under the roots of the Big Hickory-tree. That had been Jerry's most secret secret, and now there it was for all the world to see. And there were all the wonderful caves and holes and hiding-places under the bank which had been known only to Jerry Muskrat and Billy Mink and Little Joe Otter, because the openings had always been under water. Now anybody could find them, for they were plainly to be seen. And where had always been smiling, dimpling water, Jerry saw only mud. It was mud, mud, mud everywhere! The bulrushes, which had always grown with their feet in the water, now had them only in mud, and that was fast drying up. The lily-pads lay half curled up at the ends of their long stems, stretched out on the mud, and looked very, very sick. Jerry turned towards the Laughing Brook. There was just a little, teeny, weeny stream of water trickling down the middle of it, with here and there a tiny pool in which frightened trout and minnows were crowded. All the secrets of the Laughing Brook were exposed, just as were the secrets of the Smiling Pool. Jerry knew that if he wanted to find Billy Mink's hiding-places, all he need do would be to walk up the Laughing Brook and look. “Yes, Sir, the world has turned upside down,” said Jerry in a mournful voice. “I believe it has,” replied Grandfather Frog, looking up from the little pool of water left at the foot of the Big Rock. “I know it has!” cried Jerry. “I wonder if it will ever turn upside up again.” “If it doesn't, what are you going to do?” asked Grandfather Frog. “I don't know,” replied Jerry Muskrat. “Here come Little Joe Otter and Billy Mink; let's find out what they are going to do.” CHAPTER XI: Five Heads Together Something had to be done. Jerry Muskrat said so. Grandfather Frog said so. Billy Mink said so. Little Joe Otter said so. Even Spotty the Turtle said so. The Laughing Brook couldn't laugh, and the Smiling Pool couldn't smile. You see, there wasn't water enough in either of them to laugh or smile, and nobody knew if there ever would be again. Nobody had ever known anything like it before, and so nobody knew what to think or do. And yet they all felt that something must be done. “What do you think, Billy Mink?” asked Grandfather Frog.