

Anna and Ben are friends. They like to play in the park. One day, they see a big box near a tree. The box has many letters on it.
"What is this?" Anna asks.
"Maybe it is a game," Ben says. "Let's go and see."
They run to the box. They are eager to find out what is inside. They open the box. They see many envelopes with stamps and names.
"These are letters," Anna says. "They are for people."
"Who are they from?" Ben asks.
"I don't know," Anna says. "Maybe they are from far away. Maybe they are from someone who loves them."
They pick up some letters and look at them. They see pictures and words. They try to read them, but they are too hard.
"I wish we could read them," Ben says. "Maybe they are stories."
"Maybe we can make our own stories," Anna says. "We can use our imagination."
They sit down and pretend to read the letters. They make up stories about the people who sent them and the people who received them. They laugh and have fun. They forget about the time.
They do not see the mailman who comes to the park. He is looking for his box. He sees Anna and Ben with the letters. He is angry.
"Hey, what are you doing?" he shouts. "Those are not your letters. Those are mine. Give them back."
Anna and Ben are scared. They drop the letters and run away. They do not want to play with the box anymore. They go back to their homes.
They are sad. They liked the letters. They liked the stories. They wonder if they will ever see them again.
