The 221B Daily

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Thursday, 18 June 2026 | Difficulty IV

The Case of the Coachman's Cough

A footman dies at the family's Christmas dinner. The cook's mince-pies are blamed. The household demands a quiet Belgravia inquest before the New Year.

A doctor's certificate, cough note, bedside-bell cord, and covered dish of mince-pies on a Belgravia side table.
Narrated by Dr Watson — the case as it stood before us
A grand Eaton Place dining-room in mourning order, with silver on the sideboard, a low fire, and a frost-bright Belgravia street beyond.

Section I

The Scene

Hand-drawn floor plan of the Penrose townhouse, marking the dining-room, kitchen, footman's passage, and sick-room bell route.
The ground in question.
Setting
The Penrose townhouse, Eaton Place, Belgravia
Time
Thursday afternoon, second Thursday of January 1894
Weather
Clear; a hard frost; the streets quiet after the season's bustle
Atmosphere
A grand London dining-room kept in mourning order; the silver on the sideboard; a small fire low in the hearth; a smell of beeswax and cold soup.

Section II

The Suspects

  • Mrs Halloran

    Cook, fourteen years in the household

    A heavy, motherly woman of fifty-six, much loved below stairs. Her mince-pies were the family's tradition; she had baked them on the morning of the twenty-seventh and had served them at dinner that night.

  • Mr Stiles

    Butler, eighteen years

    A spare, competent man of fifty, who had access to the dining-room and the kitchen and had served at the table on the evening. He had no quarrel with the second footman that any of the household could name.

  • Master Penrose

    The family's youngest son, sixteen

    A clever, mischievous boy of sixteen, home from school for the season. He had been at the table; he had a small chemistry-set in the morning-room and a winter cold he had nursed since Boxing Day.

  • Dr Beale

    Family physician, called late on the night of the death

    A grave, hurried gentleman of forty-five, whose practice had grown heavier than his time these last two seasons. He had attended the footman's mother three years before the family's engagement, and had not since revisited the household's general health.

Section III

The Evidence

  1. The cook's mince-pies

    The remaining pies were on the kitchen-shelf and were tested by Holmes by the afternoon's chemist. The pies contained nothing but suet, currants, mince-meat, and a respectable measure of brandy. None of the household who had eaten of them had been ill.

  2. The footman's persistent cough

    Mrs Halloran, on Holmes's careful questioning, recalled that James Carstairs had been coughing in the kitchen these three weeks past - a slow, deepening cough that had given her concern; she had spoken of it to her sister and had wished the young man would see the family physician. He had not been seen.

  3. Master Penrose's chemistry-set

    The boy had a small chemistry-set in the morning-room - a present from his father at Christmas. The set contained no compound stronger than dilute acid for blue-ink-making and no substance that any chemist could distinguish in a dish of mince-meat.

  4. Dr Beale's certificate

    Dr Beale had pronounced poisoning on the strength of the symptoms - a sudden collapse, a rapid pulse, a face flushed and then bloodless. The certificate had been written at one o'clock in the morning, the doctor in haste to a confinement two streets distant, and had named no specific agent.

  5. The footman's mother and the bedside-bell

    James Carstairs's mother, sent for from the Borough on Boxing Day, had arrived in time to hear her son speak of a tightness in his chest that had been with him for some weeks; she had wished a doctor sent for. The bedside-bell had been rung by Mr Stiles at half past midnight, and Dr Beale had come at quarter past one.

Section IV

Statements & Testimony

  • Mrs Halloran Reliable

    Cook

    “"James had a cough this three weeks, sir, and a tightness in his chest at his evenings. I told my sister of it on Sunday at chapel. He would not see Dr Beale; he said the master's doctor was for the master, not for footmen. I would have given a sovereign to have him seen."”

  • Mr Stiles Reliable

    Butler

    “"Carstairs was at his post on the evening, sir. He served the second course. After the cheese he was taken with a sudden pallor and stepped into the corridor; he came back to the dining-room ten minutes later, sat down upon a chair by the door, and was not himself again. I rang for Dr Beale at midnight when his pulse was fast. The doctor came at quarter past one."”

Section V

Your Verdict

Three picks render a verdict. Name the culprit, choose the method, and nail the keystone clue. We score all three — partial credit if you got the culprit but missed the method, full credit only if you got Holmes’s exact reasoning.

1. Name the culprit
2. Choose the method

Which of these accounts of the deed best matches the evidence?

3. Pick the keystone clue

Of all the evidence above, which single piece nails the case?

Choose a culprit, a method, and a keystone clue to render your verdict.