I tried looking this up but I only see one book attributed to her "murders yet to come" which doesn't seem to have that plot. Is there another one?

I think it’s Give Me Death thepassingtramp.blogspot.com/2012/12/gree...

Greenacres is the Place to Flee: Give Me Death (1934), by Isabel Briggs Myers

A droll title for a dead-sober book, but I was amused when I read in Isabel Briggs Myers ' Give Me Death that the mansion of that doom-bede...

Thanks all, I glossed over the name on Wikipedia when I was looking.

Yup, she wrote a sequel, Give Me Death, which the estate/corp has tried to completely bury from the record (for obvious reasons)

Give Me Death

It’s called “give me death” according to Wikipedia & Goodreads Also…this is so so gross Like, I know once you look into any topic you’re gonna find: ✨& the reason was racism✨ Particularly standardized tests But yuck (Context: I’m currently reading a book about how fatphobia is rooted in racism)

From her Wikipedia page