Lord of Emperors by Guy Gavriel Kay is probably the fattest book I’ve ever read in one sitting. (It helped that I started reading early, about 9 pm.) I immediately warmed to the physician, Rustem. As he entered Sarantium, we re-entered the the story from the previous book. About halfway through, when realized what danger had arisen, I knew I wasn’t putting the book down until I finished it.
The whole second half is great, wheeling between with intrigue and assassination, riot, pursuit, and conspiracy. It climaxes with two heart-breaks of death and destruction fought against, however futilely, with all our heroes’ wits. It closes with an epilogue looking back on all the people and places in the story that still haunts me.
I think I just talked myself into reading it again.