I completed this book in just three days even though on first day I just read 56 pages and have lot many work in next two days. I wasn’t able to concentrate on other things after day 2. It is so compelling and fast moving. Best thing about the book is it keep on increasing it’s pace as we progress along. Story keeps on remaining unpredictable and always changing. This is what one expects in a thriller. Puzzles add flavors to the main story. There is no other subplot no classical type history of each and everything it is completely dedicated to just one and only thing. A great story line.