The one unbroken lamp in the ransacked laboratory illuminates a small, slug-like creature wriggling on a glass dish. The notes next to it are covered with a bizarre mix of mathematical formulae and arcane symbols. Suddenly, a thick stream of ichor falls across the notes from somewhere above you. Your blood chills as you unholster your revolver. Something growls at you from the rafters.

„Forbidden Alchemy” is a horrifying expansion for „Mansions of Madness” that presents investigators with three new tales of scientific horror, plus a host of new components for their existing stories! Beyond the laboratory door, you’ll discover four clever new investigators, two terrifying monster types, nearly 250 new cards, 40 tokens and markers, and six detailed map tiles. This comprehensive expansion also contains never-before-seen rules and components for Alchemy puzzles, Side Effect cards, mutations, crawling hands, and even time travel. Do you dare face the eldritch horrors that lurk within?