Zombie Cake

Haitian Vodou and alleged pharmaceutical explanation
In 1937, while researching folklore in Haiti, Zora Neale Hurston encountered the case of a woman who appeared in a village, and a family claimed she was Felicia Felix-Mentor, a relative who had died and been buried in 1907 at the age of 29. Hurston pursued rumors that the affected persons were given a powerful psychoactive drug, but she was unable to locate individuals willing to offer much information. She wrote:
“What is more, if science ever gets to the bottom of Voodoo in Haiti and Africa, it will be found that some important medical secrets, still unknown to medical science, give it its power, rather than gestures of ceremony.”