The 221B Daily

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Sunday, 14 June 2026 | Difficulty IV

The Case of the Lambeth Mission Fund

A Lambeth parish's twelve-month mission fund is found four hundred pounds short the day before the architect is to be paid. The curate keeps the books.

Engraved key object plate for The Case of the Lambeth Mission Fund.
Narrated by Dr Watson — the case as it stood before us
Victorian newspaper-style illustration for The Case of the Lambeth Mission Fund, set at St Anne's church, Lambeth - the vestry.

Section I

The Scene

Hand-drawn case map for The Case of the Lambeth Mission Fund, showing St Anne's church, Lambeth - the vestry.
The ground in question.
Setting
St Anne's church, Lambeth - the vestry
Time
Sunday late morning, third Sunday of October 1893
Weather
Damp; a Sunday quiet on the river; bells from across the lane
Atmosphere
A small panelled vestry; deal table strewn with subscription-books; a black gown on the peg; the smell of beeswax and Sunday's incense.

Section II

The Suspects

  • Mr Trevallion

    Curate, the rector's nephew, the confessor

    A pale, slight young man of twenty-eight, the rector's nephew and a curate of three years' service. He had walked the parish with his subscription-book through the year and held the daily charge of the mission fund. He had confessed to the diversion before luncheon; he could not say where the money was.

  • Mr Sangster

    Parish treasurer, fifteen years; a City man of business

    A broad, prosperous man of fifty-five, in his City life a director of a small private bank. The treasurer of the parish for fifteen years, and the curate's uncle by his late wife.

  • Miss Hatton

    Sunday-school superintendent; the curate's fiancée

    A composed, quiet woman of twenty-five, the curate's fiancée, who had assisted Mr Trevallion at the parish-rounds through the year and knew the fund's progress to the shilling.

  • Mr Banks

    Verger, twenty years

    A heavy, slow man of sixty, who held the second key to the vestry's small safe. He had been at the parish all his working life and had no other living than what his pension and verger's pay set him.

Section III

The Evidence

  1. Mr Trevallion's confession

    The curate's confession was made to his uncle the rector at half past ten this morning. It was full of grief and meagre of detail; he could give no account of where the money was nor of what had been done with it.

  2. The cheque-stubs

    The fund's cheque-book held thirty-two stubs across the year. Each draft had been signed by Mr Trevallion and counter-signed by Mr Sangster as the parish treasurer's office required. The drafts ran in regular weekly amounts to the architect's progress-payments and to subscriptions returned.

  3. Mr Sangster's private papers

    Holmes asked, with the rector's permission, for a sight of the parish treasurer's private papers in his desk at the vestry. There he found a folded letter dated August: a Cape Town merchant's circular invitation to subscribe to a colonial gold-mining venture, and Mr Sangster's pencilled note in the margin - "£400 by Michaelmas - to be replaced from senior fees."

  4. Miss Hatton's parish-book

    Miss Hatton's own parish-book, kept in her hand and signed by each subscriber, agreed to the penny with Mr Trevallion's running total at the close of every month.

  5. The verger's keys

    Mr Banks's second key to the vestry's small safe had hung on a chain at his waistcoat through the year. He had not opened the safe alone in thirty years; the parish had no record of any unauthorised access.

Section IV

Statements & Testimony

  • Mr Trevallion Partial

    Curate; confessor

    “"I - I have erred, sir. I cannot say more. The fund is short and I have signed the cheques. My uncle has been kind to me these years and I would not have him see this from any other man's mouth. The money - the money is gone."”

  • Miss Hatton Reliable

    Sunday-school superintendent; the curate's fiancée

    “"My book agreed to the penny with my Trevallion's at September, sir. He brought every shilling home to me each Saturday evening. I cannot believe he has taken so much as a sovereign of this fund - whatever he may say of himself this morning, the man I know did not do this thing."”

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.