City of Dragons: The Rain Wild Chronicles

Once dragons ruled the Rain Wilds, tended by privileged human servants known as Elderlings. But now the magnificent creatures have been driven nearly to extinction—and the last of their kind, born weak and deformed, have one last hope of survival: to return to their ancient city of Kelsingra.
After a long and harsh journey, Kelsingra is finally near, on the far side of the toxic Rain Wild River. But the greatest trial still lies ahead for the dragons and their human keepers. Rapidly approaching enemies driven by wickedness, greed, and dark desires covet the treasures that await within the magical city's walls. And to reach their ancestral sanctuary, the dragons must reawaken a power lost to them generations earlier. The dragons must learn to fly.

Robin Hobb was born in California but grew up in Alaska. It was there that she learned to love the forest and the wilderness. She has lived most of her life in the Pacific Northwest and currently resides in Tacoma, Washington. She is the author of five critically acclaimed fantasy series: The Rain Wilds Chronicles (Dragon Keeper, Dragon Haven, City of Dragons, Blood of Dragons), The Soldier Son Trilogy, The Tawny Man Trilogy, The Liveship Traders Trilogy, and The Farseer Trilogy. Under the name Megan Lindholm she is the author of The Wizard of the Pigeons, Windsingers, and Cloven Hooves. The Inheritance, a collection of stories, was published under both names. Her short fiction has won the Asimov's Readers' Award and she has been a finalist for both the Nebula and Hugo awards.