I first read this book in the late 1970's and found it really frightening. It had been passed around the family and we all found it very scary. Fast forward to today, I really wanted to read it again and was waiting for the scary bits. It just didn't do it for me this time. I don't know why but maybe I'm not as scared and impressionable as I was thirty odd years ago. It still makes interesting reading but it reads as a work of fiction in my opinion. Even so, in spite of all that I reckon it is worth a read if you can get it cheap enough as it is rather hard to get hold of.