There are 3 books in the Godspeaker Trilogy series. The newest book is Hammer of God which came out in 2008.

1
Empress

Book cover of Empress
In a family torn apart by poverty and violence, Hekat is no more than an unwanted mouth to feed, worth only a few coins from a passing slave trader. But Hekat was not born to be a slave. For her, a different path has been chosen. It is a path…
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2
The Riven Kingdom

Book cover of The Riven Kingdom
The King of Ethrea is dying. His only surviving heir is the Princess Rhian. But if her enemies have their way, Ethrea will not be ruled by a woman.Dexterity Jones is a toymaker. To protect Princess Rhian and his country, he must place his trust in an exile from Mijak.…

3
Hammer of God

Book cover of Hammer of God
In Ethrea, Rhian sits upon a precarious throne. Defiant dukes who won't accept her rule threaten the stability of her kingdom. Dexterity has been banished from her court in disgrace. The blue-haired slave Zandakar, the man she thought was her friend, has been revealed as the son of a woman…