An 80-page epic dungeon-crawl for classic and modern D&D players. The fourth module in the Perils of Portal Lake campaign, Part-Time Professional Mine Janitors drops your party into an active mine filled with rumors, rival factions, and something far more dangerous than cave-ins. This is a standalone adventure—but also a pivotal chapter in an ongoing quest. Play as mice in a big, perilous world—or use your regular PCs. Written for AD&D 1e / OSRIC, with conversion guides for OSE and 5e included.