Mandrake

Mandrake was a drug that was exploited by the Mandragora Helix in the 1990s in an attempt to conquer Earth. (DWM: The Mark of Mandragora)

In 800, French king and Holy Roman Emperor Charlemagne lost a food taster to mandrake poisoning. (WC: The Lonely Computer)

Behind the scenes
The mandrake plant (genus Mandragora) belongs to the nightshade family, along with tomatoes and potatoes. It is a hallucinogen and can be toxic in large doses.