They dropped back and pulled the covering up to their chins, and shouted, "Don't you tell! don't you tell!" and just perfectly wriggled with triumph.
The papa had heard every word; they were laughing so that they whispered almost as loud as talking; but he pretended that he had not understood, and he made up his mind that he would have them yet. "A little and a more," he said, "and I should never have gone on again."
"Go on! Go on!" they called out, and then they wriggled and giggled till anybody would have thought they were both crazy.