INVITATION TO A HOLOCAUST She came to the ancient and fearsome Castle Estillio as the guest of a rich scientist and his frivolous sister. But she quickly realized that she was a prisoner among madmen. The bizarre tower which had been turned into a modern laboratory...the grim dungeon with its macabre instruments...the legendary tunnel which no one dared speak of...even the handsome, enigmatic stranger whom she longed to trust...all were essential to the grotesque experiment for which she, Dinah Haversham, had been carefully chosen....
An unusual book within the author's works, "I Came to a Castle" is charming and unsettling. The familiar governess-in-danger plot is given a new twist. The rapport between Dinah Haversham and her charges is enjoyable, but the novel's climax is darker than anything the author would ever attempt again, complicating the easy assumption of a happily ever after.
I’ve read most of her books by now so I can safely say that this is probably the weirdest she ever wrote. It follows her familiar formula for most of the book and then veers off in a strange, discordant direction. I’m frankly surprised her publisher didn’t intervene.