Gu (poison)
Gu (traditional Chinese: 蠱; simplified Chinese: 蛊) or jincan (traditional Chinese: 金蠶; simplified Chinese: 金蚕) was a venom-based poison associated with cultures of south China, particularly Nanyue. The traditional preparation of gu poison involved sealing several venomous creatures (e.g., centipedes, snakes, scorpions) inside a closed container, where they devoured one another and allegedly concentrated their toxins into a single survivor, whose body would be fed upon by larvae until consumed.