"A complete campaign module set in the world of Haven"
From the back cover:
Whose Side Are You On?!!
Within the Tyrant's Demesne is a complete campaign module, detailing the inhabitants, shops, and other places of interest in dhar Ankhes. It can be used independently or in conjunction with other Gamelords campaign packs — particularly City of the Sacred Flame, which describes the stronghold of dhar Ankhes traditional nemesis, the barbarian tribesmen of Zal' Akhen. This module utilizes the Thieves' Guild rules system, but is compatible with any major fantasy role-playing system.
Within the Tyrant's Demesne contains a detailed city map, two complete introductory scenarios, several additional mini-scenarios and city encounter tables — enough material for months of adventuring. So if it's cloak-and-dagger suspense you're after, then seek no further, effendi — dhar Ankhes is the place your campaign has been looking for!