No idea. Perhaps it annoyed her that it was so much better than the book.
That's unfair. You haven't read the book.
I've read other other things by her. I found them unsatisfactory.
And the film is satisfactory?
Very much so. The scariest thing ever committed to celluloid.
Well, there are other contenders, but this is a neglected gem.
Lots of atmosphere. A meticulous recreation of period (early 1920s). Low-key, naturalistic acting. An inspired choice of locations. A slow build up of tension, a slight releasing of tension (very cunning) and then the most tremendous shock. Followed by a scarcely less tremendous aftershock. The film makers (writer : Nigel Kneale, director: Herbert Wise) have understood how the classic ghost story works. The principle is very simple: the more we believe in the world we're being shown the more we'll believe in the supernatural incursions- and the more frightening we'll find them.
Are you saying the remake is unnecessary?
I haven't seen it, so no. But I'll bet it's not as scary.