Prentice lived in an almshouse in Sible Hedingham. She told investigators about her pet who she said was a ferret named "Satan" or "Bid". The ferret she said had asked to be fed and this she had done on a number of occasions.[1] The ferret was said to have fed by biting and sucking her blood from her left cheek.[2]
During her questioning she implicated two other women named Elizabeth Whale and Elizabeth Mott who she said had used her familiar, Bidd. The accusations did not result in any further action against them.[1]
She was charged in line with the 1563 Witchcraft Act which defined the penalties for people found guilty of witchcraft. In time 31 people were found guilty and only one was a man.[3] The 1563 Act in England required that the death penalty could only be used where the accused had caused the death of another. In Prentice's case she said that had asked her familiar to hurt a child but the familiar disobeyed her and the child died. This justified the death penalty.[1]