Agatha Christie is my all-time favorite mystery writer and while this may not be my all-time favorite Agatha Christie mystery, it is still quite wonderful.
Poirot has a dental appointment, which he dreads as much as us ordinary humans do, and finds out later that his dentist was found dead shortly after he saw him. It is presumed to be suicide at first but of course it isn't. There is no shortage of suspects since there was a waiting room full of patients, including one of the most influential bankers in England. Poirot does his usual cerebral job of solving one of the most convoluted crimes in his career.
While this book has a complex mystery, the more interesting part to me was it's relation to it's time period. It was published in 1941 and times were tumultuous. It's clear through the writing that there was a lot of fear and change in the air. There was a lot of talk of bringing down the old ways of doing things and the need for revolution. This story probably reflects the feeling of the times very well. It feels less cozy and warm than some of her other novels and that's probably why it's a four star rather than a five star book but she's still the queen and I'm happy to read any of her books anytime.