DNF @ 49% 
 The only thing that really kept me reading up until that point was the fairly original time travel concept used in this book. 
 But in the end, the plot was minimal, the characters only so-so and it just dragged. No sense of urgency, even when PLOT STUFFS happened and you would have expected the pace to quicken since the stakes have been raised but no. An inordinate amount of chatting for the book that it is.