I am being asked about this so often that I think it deserves a post of its own!
YES! There is a fourth books that concludes the Rain Wilds Chronicles. It is called Blood of Dragons and is currently making its way through the editorial process, to emerge in 2013. Yes, it will feature a Jackie Morris cover!
To recap: I intended to write one stand alone book about the dragons in the Rain Wilds. When I turned in Dragon Keeper, I was very late and the manuscript was very long. Rather than hack the story down to size, we opted to release one book as two volumes. Dragon Keeper and Dragon Haven make up one story.
Then, I resolved to try again to write a third book that would tie up any loose ends about the Dragons, the keepers and Kelsingra. That time, I did manage to turn it in on time! But again, it was far too long. So, once more, we cut one book into two volumes. City of Dragons and Blood of Dragons make up on story from the Rain Wilds, and conclude my Rain Wilds Chronicles.
I am so sorry for any confusion and to any readers who bought City of Dragons expecting it to conclude a ‘trilogy’, my heartfelt apologies!
Oh, and that new link on City of Dragons goes to a SUVUDU interview I just completed!