Grimoire of Deenus

From publisher blurb: SQ17 - Grimoire of Deenus has you and your party hired by a source to retrieve a legendary and nefarious book. Deenus was a necromancer that was put out of business a quarter century ago by a group of adventurers. Despite their success, the delvers were never able to discover the dungeon entrance. Your new benefactor may have information on that… Although set in the Pangia Campaign, this adventure setting is easily adaptable to most any game and system.