I love the theme of time travel and this book deserves to be noticed: it is very creative and full of new and interesting ideas; more writing is very fluid, so that I literally ............ .dévoré the book. I finished it for days but it does not let me: a book that reads voraciously and makes then think ... I 'would like many more like this one and it's the only regret I express : Ken GRIMWOOD apparently not written anything else for now !! I would love to be prevented the release of his next book!