It’s been quite a few years since i read this — and, i might add, i immensely enjoyed it.
Since then Joseph has added quite a few novels and shorts to the series and you can find the whole series by clicking there.
The Rise of the Red Shadow
Entwell Origins: Ayna
The Book of Deacon
The Great Convergence
The Battle of Verril
Jade
The Stump and the Spire