I grew up in a small town in South Canada. Every autumn, there was a week—long fair in the town. Thousands of people from other towns came to sell and buy things. It was the most exciting time of the year.

    When “Fairtime” came, my grandma became the busiest person of the family. Grandma was a kind, well—educated old lady. She was good at cooking. During “Fairtime”, relatives would come to live in her house and have meals there. Grandma was always happy to look after them.

    Year after year, many people moved to big cities. There was no longer “Fairtime”. Grandma became very old and was going a little blind. My parents and I did our best to make her life as comfortable as possible. I was at high school then. What I often did at home was to help Grandma with the daily newspaper's crossword puzzle. However, she didn't look happy. She often sat in her room for hours, without saying a word.

    To attract people to move back, the Town Hall decided to reopen the Fair. One day, when I came back from school, I saw Grandma wearing her glasses, washing the dishes in the kitchen. With a big smile on her face, she looked excited and a lot much younger. She told me that her two of her cousins would come. "They said they missed hometown and wanted to enjoy my food again."  Grandma said happily. "They will stay here for one week and we can have a big party. That must be the busiest week I've had in years!”

    I suddenly realized that Grandma didn't want to be looked after. She wanted to be “useful”, appreciated and helpful.

Have you ever read stories of Sherlock Holmes—a famous detective? Here is one of his cases.

Stapleton, Charles' younger brother, found that he would inherit (继承) the Baskerville lands if Charles and his nephew(侄子) —Henry both died.

    Charles who had a weak heart believed super natural stories. After knowing this, Stapleton had the idea of buying a huge hound, and of using the phosphorus(磷) to make it shine like the hound in one story.

    Then Stapleton asked his friend Laura to write a letter to bring Charles to the moor gate on that sad night. The hound, which was shining with phosphorus, chased Charles down the Yew Alley. Charles' fear was so great that his weak heart stopped, and he died but the animal did not touch the dead body. There was no sign of murder. It was difficult for Holmes to find the murderer.

    Two weeks later, Stapleton learned that Henry had reached England. He took his wife and the hound with him. He wore a false beard and followed Henry in London. He wanted to use the same way to murder Henry there. He needed something to give the hound Henry's smell, so he paid a woman at Henry's hotel to steal one of his shoes. The first one was a new one, which was no use for the hound, so it was put back. And then another older shoe was stolen. Before he was ready to murder Henry, he wasn't sure if his wife would keep his secret, so he did not tell her the truth. He locked her up in their hotel. She knew that he must have some evil plans. She sent Henry a letter which was made of words cut from a newspaper.

    After receiving the letter, Henry realized he was in great danger and it must have something to do with his uncle Charles' death. So he asked Holmes for help.

    As we all know mother's love is the greatest love in the world. It's true that we should thank our mothers, without mothers, nobody could come to the world. I always believe the rule, so it's hard for me to feel father's love. I didn't realize how great my father was until last month.

    On a rainy day last month, I was sleeping in my bedroom when my father came in to wake me up. I was sleepy and upset, so I began to shout at him. He wasn't angry at all. Instead he said in a low voice to me, "Dear, it's time for lunch. I have already got everything ready for you. "I looked at the watch. My god, it was nearly twelve o' clock at noon. It was Sunday that day. That was why I got up so late.

    I went downstairs slowly and lazily. When I got into the dining room, I saw a table of tasty food. I felt surprised because all the food was cooked by my father himself. He had never done any housework before, because he was always very busy. I was still puzzled (困惑) why Dad cooked so much food for us two that day . Suddenly, I heard the voice of happy birthday. I was so excited that I cried, for I knew it was the first time I had felt father's love since my mom was not with us anymore.

    "My dear lady," says Holmes. "You're shivering. Are you cold? Do you want a cup of hot tea?"

    "I'm not cold," the woman replies. "I fear for my life!"

    "We are here to help you. Don't worry about anything. I don't know you. But I know many things about you. For example, I know how you travel. You came to London by train. You also rode to the train station on a horse­drawn wagon(马拉车). "

    "Why, yes. You're right. But how do you know these things？"

    "I see a return ticket in your glove. I see fresh mud on the left arm of your dress. Now tell us your problem. "

    "My name is Helen Stoner," she states. "My mother and father are dead. I am living with my stepfather, Dr Grimesby Roylott. He comes from a rich family. But they are no longer rich. They have nothing except a small piece of land and a huge old house. We are living in the house. Dr Roylott is using my mother's money for expenses(开支). Part of it was for my sister and me. It was for our marriages."

Holmes is sitting in his chair. His eyes are closed. He is listening carefully to Helen's story. He hears every detail.

    Helen continues. "My stepfather has no friends. He fights with everyone. He is strong and gets angry quickly. Everyone is afraid of him. "

    "He has no friends at all?" asks Holmes.

    "No. He talks to no one except the gypsies. They are poor people who travel from place to place. A band of gypsies is staying on our land right now."

    "Are you and your sister afraid of the gypsies?"

    "My dear Mr. Holmes. You are making me so sad. My sister is dead. That is why I am standing here in this room."