He went back and got a longer string.

He tied the bun with the long string, then pulled and pulled but it did not move.

Mouse sat down and ate a little bit of the bun.

It was very good. He ate a little more, then a little more, and a little more till the bun became smaller and smaller.

He pushed the bun, it rolled right into his house. Mouse was very happy.

The bun was safely in his house.

But he had eaten so much bun that his stomach had become so… so… big.