Forgotten Realms
The "Campaign Set" (often referred to as the "Grey Box") was later released in 1987 as a boxed set of two source books ("Cyclopedia of the Realms" and "DM's Sourcebook of the Realms") and four large maps, designed by Greenwood in collaboration with author Jeff Grubb. The set introduced the campaign setting and explained how to use it, and reserved space on the map for SSI's Gold Box computer role-playing games set in the Forgotten Realms.
Menzoberranzan
Menzoberranzan, the City of Spiders, is a fictional city-state in the world of the "Forgotten Realms", a "Dungeons & Dragons" campaign setting. It is located in the Upper Northdark, about two miles below the Surbrin Vale, between the Moonwood and the Frost Hills (north of the Evermoors and under the River Surbin). It is famed as the birthplace of Drizzt Do'Urden, the protagonist of several series of best-selling novels by noted fantasy author R. A. Salvatore.