The Trials of Cell Theta
Imperial Guard. Under direct instruction from Inquisitor Greyhawk. Placed all over the Callixis Sector.
Adepts first met Harten as a member of the Imperial Guard on Quaddis where he escorted them to Scintilla. He remained on Scintilla (moved by orders from Greyhawk to keep an eye on the adepts). Harten fulfilled his purpose by reassuring the adepts in their hour of need after being cast out from the Inquisitorial order.