Once upon a time, it was winter season . Suddenly somebody knocked my door. It was 1:30 at night so, I became scared but then also I opened the door. I saw an old man standing at my door. It was a winter season so he was shivering because of cold. He was wearing the dress that I had seen in my history books, he requested me to provide him the clothes so that he can protect himself from that cold weather. I called him in my house and took him in my room and made him sit. I gave him a cup of tea and some food to eat, and when he was busy in having tea & food,I search some clothes for him and provide him the same, so that old man felt very good and went out very happily. Next day,I went to my friend Nick’s house where I had a cup of tea with Nick and his father Dr.Andrews who was a great physicist in his time and I saw the photograph of that old man on one wall of his house, I became shocked and surprised, so I asked him about that photograph , Nick’s father replied ,and told me that it was the photograph of his father i.e.Nick’s grandfather,I asked him that “ Is he alive ’’ , he had some smile on his face & he replied me “No”. I told them “he is alive”, Andrews became shocked & he told me that his father was lost in year 1914. Now I felt too sweaty & I didn’t understand how to respond, so I went out of his house after saying Good bye him & his grandfather. I am not getting anything ,so I went back in my car And ran my car towards the police...