Olga Seminoff From Heir to Hidden Victim
Hallowe'en PartyThis thread follows Olga Seminoff’s genuine bond with her employer into a disputed inheritance, a false accusation, disappearance, and the eventual discovery of her murder.
increasing
Bearing strength in each event
decreasing
A Trusted Attendant

Service and Affection
A relationship develops
Olga Seminoff works as an attendant to Mrs Llewellyn-Smythe and becomes close to the older woman. Her employer asks her to write personal letters in a hand resembling her own, giving Olga practice in imitating the handwriting.
Trust creates vulnerability
Olga’s position brings her into a household shaped by wealth, illness, and family tension. The trust she gains is genuine enough to make a later gift plausible, but her ability to imitate handwriting also makes her an easy person to accuse when a document is challenged.
A Genuine Codicil

A Gift That Changes the Inheritance
The old woman’s decision
Mrs Llewellyn-Smythe makes a codicil leaving her fortune to Olga in recognition of her care. Harriet Leaman later says she witnessed the document being written and signed, though that account does not establish the authenticity of the separate codicil submitted for probate.
A dangerous new position
The gift places Olga between the family’s expected inheritance and Michael Garfield’s ambitions. What might have been an extraordinary act of generosity instead makes her a target for those who need both the estate and a plausible culprit.
The Forged Document

Suspicion Redirected
A false codicil appears
A defective codicil submitted for probate appears to leave the estate to Olga. Handwriting experts identify it as forged, and Olga’s experience copying her employer’s writing makes the accusation seem convincing.
The truth is obscured
The public story reduces Olga’s disappearance to flight from prosecution. Poirot later concludes that the forged document was part of a plot to frame her and conceal that the original codicil threatened the conspirators’ intended inheritance.
A Disappearance Misread

Flight Becomes the Explanation
No reliable trace remains
Olga leaves the neighborhood after the forged codicil is challenged and a legal case appears likely. Letters to an older friend suggest that she had expected a future with an unnamed Englishman, but the correspondence stops without confirming where she went.
Community gossip fills the gap
Residents assume that Olga has returned to her home country or escaped with a man. Those explanations make her absence seem like evidence of guilt and divert attention from the possibility that she was murdered and hidden nearby.
The Well Gives Up Its Dead

A Missing Woman Found
A clue leads underground
Poirot connects Mrs Goodbody’s reference to a cat in a well with Miranda’s questions about the old sealed well in Quarry Wood. Police search the location and discover Olga’s body, disproving the belief that she simply disappeared.
The accusation is reversed
The body and the knife wounds link Olga’s death to the broader crimes surrounding the codicil and Lesley Ferrier. Olga emerges not as the fugitive forger imagined by the neighborhood, but as a victim whose death helped hide the plan against the estate.
During the final year of Mrs Llewellyn-Smythe’s life
A few weeks before Mrs Llewellyn-Smythe’s death
After Mrs Llewellyn-Smythe’s death before the inquest into Joyce’s murder
In the period after the forgery was challenged
Near the end after Poirot connects the nursery rhyme to the well