Tuppence Cowley

Tommy Beresford

Childhood friends and adventurous partners who work together as amateur detectives.

Mrs. Vandemeyer

Antagonistic captor and interrogator who tries to manipulate Tuppence for information.

Mr. Whittington

Employer who hires Tuppence for a mysterious job, later revealed as a criminal associate.

Mr. Carter

British intelligence officer who recruits and coordinates Tuppence's undercover work.

Albert

Loyal young assistant who helps Tuppence with errands and surveillance.

Jane Finn

Fellow young woman and key witness whom Tuppence helps rescue and befriend.

Mr. Brown

Mysterious master criminal who is Tuppence's ultimate adversary in the plot.

Tommy Beresford

Childhood friends and adventurous partners who work together as amateur detectives.

Tommy Beresford

Childhood friends and adventurous partners who work together as amateur detectives.

Mrs. Vandemeyer

Antagonistic captor and interrogator who tries to manipulate Tuppence for information.

Mrs. Vandemeyer

Antagonistic captor and interrogator who tries to manipulate Tuppence for information.

Mr. Whittington

Employer who hires Tuppence for a mysterious job, later revealed as a criminal associate.

The Secret Adversary

Initiates the idea of becoming adventurers; receives a job offer from Mr. Whittington.

The Young Adventurers, Ltd.

Greets Tommy affectionately; shares her post-war financial woes and proposes the idea of a joint venture; writes the advertisement for their services.

II: Mr. Whittington's Offer

Tuppence adopts the alias 'Jane Finn' and cleverly negotiates with Mr. Whittington, securing fifty pounds as an advance.

A Set Back

Tuppence excitedly shows off her fifty pounds from Whittington and explains how she invented the name Jane Finn, only to learn Tommy had mentioned it. She devises a plan to follow Whittington and, after his disappearance, resolves to place an advertisement to find Jane Finn.

IV: Who Is Jane Finn?

Tuppence eagerly tells their story to Mr. Carter and is thrilled to be hired for the adventure, though she is momentarily awed by his presence.

Mr. Julius P. Hersheimmer

Takes the lead in questioning Julius and negotiating with Mr. Carter; shows her practical and bold nature.

VI: A Plan of Campaign

Proposes the plan to investigate Lusitania survivors, identifies 'Rita' as a clue, and spots Whittington at South Audley Mansions.

IX: Tuppence Enters Domestic Service

Tuppence takes the initiative to infiltrate Mrs. Vandemeyer's household, adopting the alias Prudence Cooper and using her wits to befriend Albert and secure the job.

X: Enter Sir James Peel Edgerton

Working undercover as a maid named Prudence, she serves dinner, eavesdrops on a conversation between Mrs. Vandemeyer and Count Stepanov, and later receives a knowing glance and hint from Sir James Peel Edgerton.

XI: Julius Tells a Story

Visits the Ritz, writes to Mr. Carter, and recounts her meeting with Sir James Peel Edgerton.

A Friend in Need

Feels rudderless without Tommy and takes the lead in seeking Sir James's help.

The Vigil

Keeps vigil, makes tea, discovers Mrs. Vandemeyer's body, and searches the room.

A Consultation

Present during the consultation with Dr. Hall; returns to the Ritz with Julius.

XV: Tuppence Receives a Proposal

Receives a marriage proposal from Julius, grapples with her love for Tommy, and receives a telegram from him.

Annette

Mentioned as having bombarded Mr. Carter with letters about Tommy; she is out when Tommy returns to the Ritz.

The Telegram

Disappears after receiving a fake telegram from 'Tommy' and is presumed captured by the enemy. Her note to Julius shows loyalty to Tommy.

XIX: Jane Finn

Mentioned as having disappeared a week ago; her kidnapping is a countermove by the gang.

In Downing Street

Mentioned as the subject of Tommy's concern; he believes she is alive and that her disappearance was a plant.

XXIII: A Race Against Time

Imprisoned at Astley Priors; sends a warning note to Tommy.

Julius Takes a Hand

Obeys Tommy's orders, escapes with Jane, and is later rescued by Julius.

Mr. Brown

Accompanies Sir James and Jane to the house in Soho, sensing danger and suspecting Mr. Brown's presence. She is present when Sir James reveals his true identity.

XXVII: A Supper Party at the Savoy

Playfully teases Julius about his earlier proposal and participates in dressing Jane for the party.

XXVIII: And After

Tuppence teases Tommy about proposing and dreams of their future home together, showing her playful and romantic side.