One night, Mary saw a girl sitting by the road near her house. The girl's coat was very old and thin. It couldn't keep warm at all. Mary thought a cotton(棉) coat may be helpful to the girl. So she opened the window and shouted to the girl, "Come to the front door of my house, please!" The girl was surprised, but she did as Mary said. She knocked at the door of Mary's house.
Mary opened the door and smiled warmly to the poor girl. She handed a cotton coat to the girl. Just then she saw a smile on the girl's face. That night, Mary was very happy for what she had done. The poor girl had never appeared again since that night. Years later, Mary almost forgot the poor girl. One day, Mary got a call from a lawyer(律师) called Jack. Jack invited her to his office. After they met, Jack gave Mary a letter. It said, "Forty years ago, a beautiful girl helped me. In that winter, she gave me warmth and hope. Later I got through the hardest time in my life and then started a happy life." After Mary read the letter, she remembered that homeless girl. "Where is she now?" asked Mary.
"Mrs. Hope died two months ago," answered Jack. "She left one of her houses to you. Besides, there is one more thing she left to you —a cotton coat."
