in a decrepit castle in the mountains a group of treasure seekers stumble upon a treasure trove of forgotten knowledge

decrepit castle mountains treasure seekers stumble trove forgotten knowledge hidden door crumbling shelves find scripts detailing mythical creatures alchemical recipes prophesies magic end worldsimilar words ancient beasts spells incantations divination wizardry sorcery arcane secrets similar world fantasy background mystic dream mystery rpg adventure spell fable alchemy ai generated