Just finished "Dumb Witness" by Agatha Christie. This was her 28th book, and was originally published in 1937. In this book, Poirot investigates the death of an elderly lady who died, seemingly of natural causes, with a greedy family all wanting her money. The "Dumb Witness" of the title is her dog, Bob, who is a major character (complete with dialogue
) in the book. A good read. Recommended.