Mom had good news.
"We're going to babysit for Martha today."
"Yay!" said Emmy.
"Baby Martha is so cute!"
Soon Martha's mom brought Martha.
She brought a diaper bag and crib too.
"I want to play with Martha," Oliver said.
"She is too little," Mom said.
Then Martha started to cry.
"What does she want?" Harry asked.
"She wants a new diaper," said Mom.
Mom got Martha a new diaper.
Martha smiled.
The kids ate lunch.
Martha started to cry again.
"What does she want?" Emmy asked.
"She wants lunch," Mom said.
Emmy gave Martha a bottle.
Martha burped and smiled.
Soon Martha started to cry again.
"What does Martha want?" Harry asked.
"She wants to play," said Oliver.
"She wants a nap," Mom said.
Harry put the baby in her crib.
Martha took a long nap.
Then Martha woke up.
She started to cry.
She was not wet or hungry or tired.
But she was still crying.
Mom didn't know what to do.
"What does Martha want now?" she asked.
"I know!" Oliver ran to his room.
He got his green alligator.
Oliver gave the alligator to Martha.
She kicked and laughed.
"See, Mom?" Oliver said.
"Martha wants to play!"