The Question and Answer section for The Witches is a great resource to ask questions, find answers, and discuss the novel.
I'm sorry, this is a short-answer forum designed for text specific questions. The above questions call for your opinion. There are no right or wrong answers.
I think they have a list of things that make them dangerous:
They hate children and enjoy getting rid of them.
They have magic
They seem like normal ladies yet are really dangerous.
Luke's parents were killed when their car skidded off a road and into a ravine. According to Chapter One, Luke's grandmother knew all about witches because she was Norwegian, and Norway was where the first witches came from.