Mystara: Dark Knight of Karameikos

In a kingdom dominated by Thyatian overlords, Sir Grygory is an anomaly: a Traladaran knight serving a Traladaran lord. An uneasy coexistence grips the land, except where some Traladarans have established a wilderness barony beyond the reach of the Thyatians. But evil has descended upon the barony. Sir Grygory must confront the black-armored knight, who, with his orb of deadly power, is ravaging the Traladaran villages. Is the Dark Knight a specter from Sir Grygory’s troubled past? Can he hope to defeat the powerful orb and an army of orc savages? Perhaps, but not without becoming, for a time, the very enemy he set out to defeat.