The book starts with a description of the streets of Howrah and the author's experiences of travelling to station in between the traffic . In the journey , to North Bengal in train , the author would meet with a person , who she would feel interesting as that person was very different from other passengers . Their introduction would capture the essence of the college life of that person and would also make a very nice friendship bond between the author and that person . The author would get her next story from that journey . The story would be of that person being a private investigator and of his life's first case as "Tony Blue".