Queen of the Demonweb Pits (Advanced Dungeons & Dragons module Q1)

"An Adventure for Character Levels 10-14 by David C. Sutherland III with Gary Gygax." Front "This module is the exciting conclusion of a series of seven AD&D (TM) modules. It may be played on its own or as the climax of the "Giant" series (G1, G2 and G3) and the "Drow series (D1, D2 and D3). The persistent adventurer must now face the Demon Queen herself, on on her own plane! "The first of a new series of other-planar adventures, this module includes several new monsters, maps of the Web and lair of Lolth, and notes on eight alternative worlds, suitable for expansion and addition to existing AD&D campaigns."