I just finished reading Déjà Vu: A Technothriller on my Kindle (price 86 pence). I didn't read the book in the space of a few days, but rather spread the pleasure out over a week. As a result I was confused about what was happening about 40% through the book. The plot involved time travel and artificial intelligence of some kind. After the plot lines came together, I had a better idea of what was going on.
Ohhh, there is a second book in the series for only 70p. What to do?