The Clocks

Sheila Webb, a typist at Miss Martindale's agency, arrives for an afternoon appointment at 19 Wilbraham Crescent in Crowdean, Sussex. There she finds a well-dressed older man stabbed to death, surrounded by six clocks, four of which are stopped at 4:13, while a separate cuckoo clock announces it is 3pm. When a blind woman, Miss Pebmarsh, enters the house and is about to step on the corpse, Sheila runs out screaming and encounters a young man passing down the street. The man, MI5 agent Colin "Lamb", takes Sheila into his care. He is investigating a clue from a note found in a dead agent's pocket: letter M, number 61, and a sketch of a crescent moon written on hotel stationery.

A police investigation begins into the murder at 19 Wilbraham Crescent. The dead man's business card proves false. His clothing reveals nothing else, as all labels have been removed. He was killed with an ordinary kitchen knife. Colin and Inspector Dick Hardcastle interview the neighbours, whose homes adjoin the murder site either via the street or the back gardens. Colin, meanwhile, grows fond of Sheila.

Hardcastle questions Mrs Lawton, the aunt who raised Rosemary Sheila Webb. Rosemary is the name on a clock found at the scene of the murder, but it disappeared before police gathered them up. Colin approaches Hercule Poirot, an old friend of his father, to investigate the case. He challenges Poirot to do so from his armchair. He gives Poirot detailed notes. Poirot accepts, then instructs Colin to talk further with the neighbours.

At the inquest, the medical examiner explains that chloral hydrate was given to the victim before he was murdered. After the inquest, Edna Brent, one of the secretaries, expresses confusion at something said in evidence. She tries but fails to convey this to Hardcastle. She is soon found dead in a telephone box on Wilbraham Crescent, strangled with her own scarf. The dead man's identity is as yet unknown. Mrs Merlina Rival (original name Flossie Gapp) identifies the dead man as her one-time husband, Harry Castleton. Colin leaves Britain on his own case, travelling behind the Iron Curtain to Romania. He returns with the information he needed, but not the person he hoped to find. Following Poirot's advice, Colin talks with the neighbours. He finds a ten-year-old girl, Geraldine Brown, in the apartment block across the street. She has been observing and recording the events at Wilbraham Crescent while confined to her room with a broken leg. She reveals that a new laundry service delivered a heavy basket of laundry on the morning of the murder. Colin tells Hardcastle.

Hardcastle tells Mrs Rival that her description of the deceased is not accurate. Upset, she calls the person who involved her in this case. Despite police watching her, she is found dead at Victoria tube station, stabbed in the back. Poirot's initial view of this case is that the appearance of complexity must conceal quite a simple murder. The clocks are a red herring, as is the presence of Sheila, and the removal of the dead man's wallet and tailor marks in the clothing. Colin updates Poirot on subsequent visits.

At a room in a Crowdean hotel, Poirot tells Inspector Hardcastle and Colin Lamb what he has deduced. From a careful chronology, he deduces what Edna realised. She returned early from lunch on the day of the murder because her shoe was broken, unnoticed by Miss Martindale, the owner. Miss Martindale took no telephone call at the time she claimed she had, and is the one person with motive to murder Edna. From that fictitious call, the boss sent Sheila to Miss Pebmarsh's house for steno/typing service. Miss Pebmarsh denies requesting this service. Mrs Bland, one of the neighbours, mentioned she had a sister in the initial interview with Hardcastle. Poirot deduced the identity of this sister as Miss Martindale.

The present Mrs Bland is the second Mrs Bland. Mr Bland said his wife was the sole living relative for her family inheritance but she cannot both be sole heir and have a sister. Mr Bland's first wife died in the Second World War; he remarried soon after, to another Canadian woman. The family of his first wife had cut off communication with their daughter so thoroughly they did not know she had died. Sixteen years later, the first wife was announced to be the heiress to an overseas fortune as the last-known living relative. When this news reached the Blands, they decided the second Mrs Bland must pose as the first Mrs Bland. They fool a British firm of solicitors that sought the heir. When Quentin Duguesclin, who knew the first wife and her family, looked her up in England, a plan was laid to murder him. The plan was simple, with additions like the clocks taken from an unpublished mystery story that Miss Martindale had read in a manuscript.

They murdered Mrs Rival before she could tell the police who hired her. Mr Bland and his sister-in-law thought their plan would baffle the police, while Mrs Bland felt she was a pawn in their schemes. Mr Bland disposed of Duguesclin's passport on a trip to Boulogne, which trip he mentioned to Colin in casual conversation. Poirot holds that people reveal much in simple conversation. Poirot had assumed this trip took place, so the man's passport would be found in a country different from where he was murdered, and long after friends and family in Canada had missed him on his holiday in Europe. The missing clock, with Rosemary written on it, was traced. Colin realises that Sheila had taken it and tossed it in the neighbour's dustbin, seeing it was her very own clock, mislaid on the way to a repair shop. But the clock was taken by Miss Martindale, not mislaid by Sheila.

Colin turns his note upside down, and it points him to 19 Wilbraham Crescent. Miss Millicent Pebmarsh is the centre of the ring passing information to the other side in the Cold War, using Braille to encode their messages. He has decided to marry Sheila and realises that Miss Pebmarsh is Sheila's mother, and thus his future mother-in-law. He gives her two hours warning of the net closing around her. She chose her cause over her child once, and does so again, clutching a small deadly knife. "Lamb" disarms her and the two wait for the arrest, both firm in their convictions. The novel closes with two letters from Inspector Hardcastle to Poirot, telling him police have found all the hard evidence to close the case. Mrs Bland, less ruthless than her sister, admitted all under questioning.