Demons and Devils (L1, Sword & Sorcery, Necromancer Games), softback adventure for d20 / D&D 3rd/3.5th ed, by Bill Webb and Clark Peterson.
“Need a difficult hiding place for that holy sword your paladin is questing for? Then Demons and Devils is for you! Demons and Devils is the first module in Necromancer Games “Lair” series, a set of modules containing short adventures usable in one or two game sessions for the overworked Dungeon Master who does not need a full-scale dungeon. Published under the d20 system, Demons and Devils contains three short, difficult dungeons: The Sorcerer’s Citadel, “Ras Evil Grin” and the Pit of Despair. Each of theses is a perfect hiding place for items a party may be questing for. And, in the fine Necromancer Games tradition, each of theses short dungeons centers around a demon or devil which guards that item. We’ve made the dungeon, you decide what you want to hide there. Now sit back and watch your players try to get it!”