The Captal's Tower is the title of the third book in Melanie Rawn's Exiles trilogy. It has yet to be written and fans have been waiting for it since around 1999. Ms. Rawn set it aside to work on other projects and has written many other books and stories since then. Fans of her exiles series refuse to purchase any of her newer material until the third book of the trilogy is written.
On July 22, 2014, Kate Elliott posted on her blog that Melanie Rawn will be writing Captal's Tower after she finishes the Glass Thorns series.