The Market Basing Mystery — Agatha Christie

At Japp's suggestion Poirot and Hastings joined him for the weekend in the small countryside town of Market Basing. Enjoying Sunday breakfast, the three are interrupted when the local constable requested Japp's help. Walter Protheroe, the reclusive owner of a local large mansion, was found dead in his dilapidated house, supposedly by suicide. The three go to Leigh House as requested and meet Dr. Giles who was called in by Miss Clegg, the housekeeper. She was unable to raise her master, Walter Protheroe, in his bedroom, nor could Giles. Constable Pollard arrived at that moment and he and the doctor broke down the oak door. Inside they found Protheroe, shot through the head and his pistol clasped in his right hand.