Part of a huge fantasy saga which is complicated, violent and incredibly addictive. It's sort of medieval with magical overtones - as if King Arthur took part in the War of the Roses.
Extract
The comet burned even by day now, while pale grey steam rose from the hot vents of Dragonment behind the castle, and yesterday morn a white raven had bought word from the Citadel itself, word long expected but no less fearful for that, word of summers end. Omens all. Too many to deny. What does it all mean?