Are you talking about her Flat Earth Chronicles? I highly recommend them! Some of my favorite books are from that series. It starts off with "Nights Master", which is good, but not as good as the second novel "Deaths Master" (I know, sounds like a death metal band...you should see the cover art on the copy I have....), which might be my favorite fantasy story ever. It's very mythic and very tragic. The third is called "Delusions Master" which is rather short and, while it has it's merits, is more of an epiloge for the the fourth book "Deleriums Mistress", which has close ties to Deaths Master and is just as good. Good luck finding them (I'd try used on amazon). I actually have two copies of the third book, so let me know if you can't find that one. There's a fifth book in the series called "Nights Sorceries", but I have yet to locate a copy.
Also check out "The Birthgrave", "Vazkor, Son of Vazkor" and "Quest for the White Witch". I don't think these are as good as the Flat Earth Chronicles, but I do think they have more in common with Exalted than the other series.