The Cruelest Month by Louise Penny (2008)

Another wonderful Inspector Gamache mystery. This time, we have Madeline die of fright in a seance at the awful Hadley house. The theme of this book is close friendship and envy, which gets played out by various couples in various ways.

(Obviously I did not have time to finish this review, but I do want all my Louise Penny books in the blog, though I read this back in the summer of 2016.