This book was a very pleasant surprise and exceeded my expectations, which were shaped by my knowledge of the film. It is excellently written, maintaining a constant tension throughout the story so that you don’t know what is truly happening or who is crazy until the very end. I found it extremely interesting to read about the position of women in the 1960s through a supernatural story and how a woman is willing to love her child even when it's the offspring of the Devil himself. My only wish is that the book had been longer and that certain aspects had been better developed. It somehow ended too quickly for me.