In the shadowy courts of European nobility, fear of being poisoned reigns supreme. To ward off treacherous substances, bezoar stones are used as potent antidotes. Finding a cure that swims in the life-giving Nile, ancient Egyptians conduct bioelectrical experiments using electric catfish. What have we discovered about these shocking treatments? A burial in Turpan, China, unearths a 35-year old Subeshi man shrouded in cannabis plants. Findings from nearby archaeological sites seem to confirm cannabis' ritualistic use. What did the ancients understand about cannabis and its properties?