For a long time nobody spoke, and then the big sister said, "I wish you would tell us what the world is like."
The big brother knew no more about the world than the other children, but after he had been cross and put on airs he didn't like to tell the truth. He might have known that he would be found out, yet he held up his head and answered: "I don't suppose that I can tell you so that you will understand, because you have never seen it. There are lots of things there—whole lots of them—and it is very big. Some of the things are like golden-rod and some of them are not. Some of them are not even like foam. And there are a great many people there. They all have six legs, but they are not so clever as we are. We shall have to tell them things."
This was very interesting and made the little sister forget to pout and the little brother come out of his foam-corner. He even looked as though he might ask a few questions, so the big brother added, "Now don't talk to me, for I must think about something."
It was not long after this that the young Frog-Hoppers changed their skins for the last time. The outside part of the foam hardened and made a little roof over them while they did this. Then they were ready to go out into the meadow. The big brother felt rather uncomfortable, and it was not his new skin which made him so. It was remembering what he had said about the world outside.
When they had left their foam and their golden-rod, they had much to see and ask about. Every little while one of the smaller Frog-Hoppers would exclaim, "Why, you never told us about this!" or, "Why didn't you tell us about that?"
Then the big brother would answer: "Yes, I did. That is one of the things which I said were not like either golden-rod or foam."
For a while they met only Crickets, Ants, Grasshoppers, and other six-legged people, and although they looked at each other they did not have much to say. At last they hopped near to the Tree Frog, who was sitting by the mossy trunk of a beech tree and looked so much like the bark that they did not notice him at first. The big brother was very near the Tree Frog's head.
"Oh, see!" cried the others. "There is somebody with only four legs, and he doesn't look as though he ever had any more. Why, Brother, what does this mean? You said everybody had six."
At this moment the Tree Frog opened his eyes a little and his mouth a great deal, and shot out his quick tongue. When he shut his mouth again, the big brother of the Frog-Hoppers was nowhere to be seen. They never had a chance to ask him that question again. If they had but known it, the Tree Frog at that minute had ten legs, for six and four are ten. But then, they couldn't know it, for six were on the inside.