Leo the mouse lived in a cozy little house hidden near a busy bus stop. He loved the city sounds. *Vroom* went the buses! *Tap, tap* went the people's feet. Even with all the noise, Leo felt safe inside his home.
One morning, Leo saw his mother looking very worried. "Leo," she said, "I can't find the blue button for my coat. Without it, my coat is too loose to wear on the bus."
Leo felt brave. "I will help you, Mother!" he squeaked.
He looked under the bed. No button.
He looked under the rug. No button.
He looked by the door.
