“Pom! Stop now, hfff . . . hfff . . . I can’t run anymore,” shouted Piu.

“Hurray! I won the race,” said Pom.

“Hfff . . . hfff! I don’t have the energy to run any more . . . I'm going to rest under the tree,” said Piu.

It was getting dark. Soon there was a big moon over the sky.

“Piu we have to go home,” said Pom...