#38: Why Shoot a Butler? by Georgette Heyer. See my comments under British authors. The story begins with the murder of a butler in the middle of a road. The body is discovered by a young woman who was supposed to meet him and a barrister who happened to be in the wrong spot at the right time.
I think we need to look back and redo the list with appropriate numbers. I briefly reviewed it and it seems we got the numbering wrong.
Anyway, my next recommendation is something from Hilda Lawrence. She wrote several mysteries, Gothic suspense in the 1940s. I read one book and 2 shorter stories by her recently. I'll add one to the list:
Nice to see another new member. I'll add something:
20. I believe it was Nora Lofts who wrote "Gad's Hall" and "The Haunting of Gad's Hall". There was an element of the occult that I found particularly eerie.
21. Perhaps someone can suggest something from Anne Maybury. I only read one and it was OK except for the inconsistencies within the story. I know she gets very good critical reviews generally.
22. Some consider Mary Roberts Rinehart as Gothic. I think they are more romantic suspense but "The Wall" has a feel of the Gothic.
22. "Girl on a High Wire" by Rae Foley. Several of her works could be considered Gothic, even the ones featuring amateur sleuth Hiram Potter. I really enjoy reading her works.
For #11, how about "Devil Vicar"?
I enjoy Mary Stewart as well and I'd put "My Brother Michael" or "This Rough Magic" on the list.
Wildfire at Midnight by Mary Stewart is excellent.