Sometimes Peter used to wonder if Sooty slept in the air as Ducks sleep on the water. Of course, he didn't really think that he did, but never seeing him anywhere but in the air, he was ready to believe almost anything. Then one evening just at dusk, Peter happened to be over in the Old Orchard close by Farmer Brown's house, and he saw something that puzzled him more than ever. He saw Sooty the Swift right above the chimney on Farmer Brown's house. It seemed to Peter as if something happened to Sooty. He beat his wings in a queer way, but instead of flying on, he dropped right straight down, down, down, and disappeared. He had fallen down that chimney! Peter waited a long time, but Sooty didn't appear again, and finally Peter went home with the feeling that he never again would see Sooty.

But he did see him again. He saw him the very next day, flying and shouting and seemingly having just as good a time as ever. It was then that Peter's curiosity would no longer be denied. He headed straight for the Smiling Pool to consult Grandfather Frog.

“He'll know all about Sooty if anybody does,” thought Peter and hurried as fast as he could, lipperty-lipperty-lip. Grandfather Frog was in his usual place on his big green lily-pad. One glance told Peter that Grandfather Frog was in the best of humor, so he wasted no time.

“Grandfather Frog,” cried Peter before he was fairly on the bank of the Smiling Pool, “I saw something queer last night, and you are the only one I know of who can tell me what it meant, because you are the only one I know who knows all about everything.”

Grandfather Frog smiled. It was a great, big, broad smile. It pleased him to have Peter say that he knew everything. “Chug-a-rum! Not everything, Peter! I don't know everything. Nobody does,” said he. “But if I happen to know what you want, to know, I'll be glad to tell you. Now what is it that is on your mind?”

Peter at once plunged into his story. He told Grandfather Frog how much he enjoyed watching Sooty fly and how little he knew about Sooty. He wound up by telling how he had seen Sooty fall down that chimney and how surprised he had been to see Sooty about the next day as well and happy as ever. He called Sooty a Swallow, for that is what Peter thought that Sooty was. He always had thought so.

When Peter had finished, Grandfather Frog chuckled. It was a long, deep chuckle that seemed to come clear from his toes. When he had enjoyed his chuckle to his heart's content, he looked up at Peter and blinked his great goggly eyes.

“What would you say, Peter, if I should tell you that Sooty isn't a member of the Swallow family at all?” he asked.

“I'd believe you,” replied Peter promptly, “but I never again would dare guess what family anybody belonged to from his looks.”

“Well, Sooty isn't a Swallow at all,” said Grandfather Frog slowly. “He is a Swift, which is another family altogether. Furthermore, he didn't fall down that chimney. No, Sir, he didn't fall down that chimney. He flew down, and he did it because he lives there. Now listen, and I'll tell you a story.” Peter needed no second invitation. A story from Grandfather Frog is always one of Peter's greatest treats, as you know.