Disappointingly boring for a Poirot. The premise and denouement were engaging, but the whole story was bogged down by the vast majority of the middle section. It was slow and uninteresting, merely repetitive and unsavoury village gossip about the youths of today, moral decline, foreigners, lesbians etc etc, which added nothing to the plot. The story had such potential, for example with the Classical references drawn in at the end, it's just a shame the middle section was so tedious and extraneous. 

An overall enjoyable book, the writing style is surprisingly poetic in places. I thought the quick succession of twists at the end was exciting, but I sort of wish they had been more evenly interspersed throughout the novel to develop them better. More psychological than a horror, I like that the author humanised all the characters and didn't play into outdated tropes about mental illness, instead it seems lovingly researched and portrayed. I also always appreciate a talking cat. Definitely a good book to read in autumn.