Bang!
That was the tiger's cage hitting Tum Tum on the head.
"Ouch!" yelled the big elephant through his trunk, for though it did not hurt him much, he felt a little pain.
Then he stood there, and pushed so hard on the big wagon, that it could not roll down hill any more. Instead, it began to roll back up the hill, as Tum Tum pushed on it.
"That's the way to do it, Tum Tum!" cried the elephant's keeper. "I knew you could do it. Come on now, old fellow. Push the cage right back where it belongs."
Tum Tum did so. Soon the tiger's cage was in line with those of the lions, wolves, bears and other animals, ready for the circus to begin.
"Oh, but I'm glad the tiger didn't get loose," said Mappo, to Tum Tum. "I was so afraid!"
"Why were you afraid?" the big elephant wanted to know.
"Oh, because Sharp Tooth, the tiger, does not like me. I am sure he would bite me, if he got loose."
"Why would he do that?" asked Tum Tum.