I have started book 3 this week, and I've just finished writing the prologue (there is a prologue at the start of book 2 as any reader will find out in just a few weeks hopefully - just waiting to get it back from the editor). The prologue for book 3 tells the back story for two important characters and adds a bit more depth to their motivations and the choices they will make in book 3.
It's so exciting to be progressing like this. I need to sit down and properly map out book 3, but it will conclude he story of Alexander and the war. I hope people like the way it ends. There are still some big scenes to come and the odd revelation, but I hope it all ties the three books together into a whole.
Off to the gym now, do some exercise to try and shed some blubber. Then maybe a little bit of Borderlands when I get back, I am really struggling to kill the third incarnation of the Handsome Sorcerer!