Return of the Warlock

From publisher blurb: A Swords & Wizardry Mini-Dungeon For 4-6 Adventurers of Levels 2-4 The spirit of an evil warlock returns, demanding a rematch against the heroes who slew him. Thing is, those heroes have been dead for years. Someone’s got to take their place. Maybe he won’t notice the difference... Return of the Warlock is part of a series of mini-dungeons designed to drop into existing adventures or campaigns. Use them as side quests or a way of getting in a quick adventure when you’re short on time.