It was a very hot day.

Boy Blue had played all the morning and he was tired.

Little Sister had been making mud pies and she was tired, too.

Mamma was too busy to read to them.

"Come, Little Sister," said Boy Blue, "It is too hot to play. I will
read my story-book to you."

"Where shall we go?" asked the little girl.

"Let us sit under the maple tree," said her brother. "It looks cool
there."

Little Sister had her baby doll.

She rocked back and forth as Boy Blue read to her.

Soon Little Sister and her doll were fast asleep.

All at once Boy Blue heard a voice.

He listened. It seemed to be saying:--

"Little Boy Blue, come blow your horn,
The sheep's in the meadow,