One thing puzzled Peter Rabbit and Johnny Chuck and Striped Chipmunk a great deal after they had come to know Unc' Billy Possum and his funny ways. They had talked it over and wondered and wondered about it, and tried to understand it, and even had asked Unc' Billy about it. Unc' Billy had just grinned and said that they would have to ask his mammy. Of course they couldn't do that, and Unc' Billy knew they couldn't, for Unc' Billy's mammy had died long before he even thought of coming up from Ol' Virginny to the Green Forest and the Green Meadows where they lived. He said it just to tease them, and when he said it, he chuckled until they chuckled too, just as if it really were the best kind of a joke.
Now you know it always is the thing that you try and try to find out and can't find out that you most want to find out. It was just so with Peter Rabbit and Johnny Chuck and Striped Chipmunk. The more they talked about it, the more they wanted to know. Why was it that Unc' Billy Possum played dead instead of trying to run away when he was surprised by his enemies? They always tried to run away. So did everybody else of their acquaintance excepting Unc' Billy Possum.
"There must be a reason" said Peter gravely, as he pulled thoughtfully at one of his long ears.
"Of course there is a reason," asserted Johnny Chuck, chewing the end of a blade of grass.
"There's a reason for everything," added Striped Chipmunk, combing out the hair of his funny little tail.
"Then of course Grandfather Frog knows it," said Peter.
"Of course! Why didn't we think of him before?" exclaimed the others.
"I'll beat you to the Smiling Pool!" shouted Peter.
Of course he did, for his legs are long and made for running, but Striped Chipmunk was not far behind. Johnny Chuck took his time, for he knew that he could not keep up with the others. Besides he was so fat that to run made him puff and blow. Grandfather Frog sat just as usual on his big green lily-pad, and he grinned when he saw who his visitors were, for he guessed right away what they had come for.
"Chug-a-rum! What is it you want to know now?" he demanded, before Peter could fairly get his breath.