This book focuses on the Salem witch trials, which is also the topic of Witch Child. The similarities are obvious. I notice that The Crucible mentions puritans as did Witch Child, though I can't remember if the views of them were the same. Also both hold the same fear and resentment towards Indians. They see them associated with the Devil because they aren't Christians. In both you have girls that are involved with acts of conjuring spirits. So far these are the only things that I see similar between the two.