Deavils trumpet Possibly what they gave the living servants of the pharaoh right before they got walled up alive with the king in his tomb.

Also from wikipedia

Datura belongs to the classic "witches' weeds", along with deadly nightshade, henbane, and mandrake. Most parts of the plants are toxic, and datura has a long history of use for causing delirious states and death. It was well known as an essential ingredient of potions and witches' brews