This book has been written using a modular design. Nowadays most of the books we come across are written with a linear design in which events move forward with time or in other words they are unidirectional except for flashbacks. Coming to the positives in the book, the plot is a good one. And I wonder if it would have been better for the author to present the story in a linear format. But the over-dependence on modular design confuses things.