A One-Round Living Greyhawk Dyvers Regional Adventure From the introduction: The lost parts of the Niadeen Codex have been recovered. Adventurers and mercenaries are summoned to escort the fragment of the ancient book to the Keep at Westguard and to guard the ceremony where a new leader will take on the mantle of the Hierarch of the Ring of Steel. Meanwhile, enemies gather from across the Flanaess to prevent the transfer of power. This adventure is the finale of the Ring of Steel series. An adventure for character levels 1 to 14.