Only one actual dragon appears in this trilogy, in the last book, but serpents (dragon larvae) abound throughout as they try to find their way to the hatching grounds. Along the way they are confused by the mysterious liveships sailed by humans, some of whom are strangely capable of connecting and communicating with the serpents. Every creature in the trilogy is essential to the story, and the various plots intertwine and weave together into a seamless fate.
I end up feeling rather disjointed and disillusioned with this world after immersing myself in Robin Hobb's, so much so that sometimes I start reading faster and faster in the need to get my life back to normal. It's an unsettling experience, and one I've never encountered with any other author. And yet I can't help but recommend and rave about her books, in the hopes that they join the ranks of classic fantasy.