The demise of Poirot
I must admit that I feel Agatha Christie to be an over rated author (personal opinion only). Having admitted that, I feel that the clever twist at the end alone makes this a worthwhile read. The overall plot seems rather far fetched and some of the characters seem a bit broad but the most disturbing thing to me, as a fan of Hercule as personified by David Suchet, is the treatment given to the sleuth in his final days. There are definitely better detective yarns out there but there are far worse as well-definitely worth a read.