Child of Flame, Book 4 of the "Crown of Stars" series by Kate Elliot.
It's frustrating: the books are definitely interesting enough to keep me reading, but I'm not sure if I actually like them or not. It certainly didn't grab me the way Tad Williams "Memory, Sorrow & Thorn", or Martins' "SOng of Fire and Ice", or Jannny Wurts' "Wars of Light and Shadow".
There's so much potential, but A) she seems to fall into the Jordan camp of introducing new characters each book and making them important. They never really overshadow the three (or so) main characters, but it's still annoying. and B) she REALLY seems to focus on the "Alternate History" themes, which, to me, anyway, is kinda annoying. If I wanted to read alterante history, I'd read Harry Turtledove.
When I finish this series (3 more books to go, the last one out in Feb. '06!!), I have "The Historian" waiting on ym bookshelf.