City of Stone by Max Forest
Approx. 104,160 words.
Published on March 21, 2012.
Tensions are high after Prince Selcott's father has failed to bring the Expatritors into line with the other guilds in Guithannan.
Selcott himself has yet to learn a trade or prove himself worthy of his royal heritage. When he encounters a scheme involving saexum crystals - the powerful but personal artifacts of each Guithannan citizen - Selcott must choose between duty or his family.