 By 1691, she had moved to Salem, where a married sister was living; she became a servant in Thomas Putnam's household.Lewis played a crucial role during the Salem witch trials in 1692, when 20 people were executed for witchcraft, including her former master, George Burroughs.Like the accusation placed on Elizabeth Proctor on March 26, 1692, Mercy was accountable for hindering Mary Eastey's release from prosecution and eventual execution after all other charges against Eastey had been dropped.