Mr. Leyland

Nigel Burtell

Mr. Leyland appears to be a colleague or superior to Nigel, possibly in a business or investigative context.

Mr. Erasmus Quirk

Erasmus Quirk and Mr. Leyland are frequent professional contacts, possibly partners or rivals in business.

Derek Burtell

Derek Burtell and Mr. Leyland have a professional relationship, possibly involving legal or financial matters.

Miles Bredon

Miles Bredon and Mr. Leyland work together professionally, possibly as colleagues in an investigation.

The Stranger

Mr. Leyland and The Stranger have a mysterious, possibly manipulative or obsessive connection.

Nigel Burtell

Mr. Leyland appears to be a colleague or superior to Nigel, possibly in a business or investigative context.

Derek Burtell

Derek Burtell and Mr. Leyland have a professional relationship, possibly involving legal or financial matters.

Mr. Erasmus Quirk

Erasmus Quirk and Mr. Leyland are frequent professional contacts, possibly partners or rivals in business.

Miles Bredon

Miles Bredon and Mr. Leyland work together professionally, possibly as colleagues in an investigation.

Nigel Burtell

Mr. Leyland appears to be a colleague or superior to Nigel, possibly in a business or investigative context.

Miles Bredon

Miles Bredon and Mr. Leyland work together professionally, possibly as colleagues in an investigation.

The Stranger

Mr. Leyland and The Stranger have a mysterious, possibly manipulative or obsessive connection.

X: Discordant Notes

Reports his investigation findings, including the alibi evidence from Shipcote Station, Oxford, and the Gudgeon.

Mr. Erasmus Quirk

Police inspector frustrated by the lack of sense in the evidence, agrees to give Quirk pointers if he proves useful.

XII: The Secret of the Island

Collaborates with Bredon, theorizes the murder and the hiding of the body on the island.

XIII: Pursued

Plans to investigate the man in the punt; his notes are reviewed by Bredon.

XIV: The Man in the Punt

Returns from tracing the man in the punt, reports his findings, and participates in the reconstruction.

XV: A New Legacy

Receives the urgent letter about the will and shares the information with Bredon and Quirk.

XVI: Bredon Plays Patience

Hurries back to Oxford, brings the cipher postcard to Bredon for decoding.

XVII: Mr. Quirk Disappears

Returns from White Bracton with the incriminating letter and shares his findings about the punt and the cipher.

XVIII: In Undisguise

Discusses the case with Bredon; admits he was taken in by Nigel's disguise and the fingerprint trick.

XIX: The Story Nigel Told

Delighted that Nigel is bedridden, avoiding arrest; takes notes on the confession.

XX: A Reconstruction

Assists in the reconstruction, takes photographs, and follows the stranger on foot.

XXI: A Walk in the Dark

Coordinates the surveillance of the stranger, discusses plans with Bredon, and regrets forgetting the canoe paddles.

XXII: Another Story

Interviews Farris and remains at the pub to watch other suspects.

XXIII: Bredon Plays Patience Again

Reports finding Nigel's passport photographs but no passport, discusses investigation with Bredon.

XXIV: Backed Both Ways

Expresses astonishment at the solution and is urged to return Nigel's trousers.