All’s Fair in Love and Treachery Summary, Characters and Themes
All’s Fair in Love and Treachery by Celeste Connally is a gripping historical mystery set against the backdrop of post-Napoleonic England. The novel centers on Lady Petra Forsyth, a sharp, independent woman navigating a perilous web of secrets, political intrigue, and personal betrayals.
When she receives a cryptic message suggesting her former lover may be implicated in the suspicious death of her fiancé, Petra is thrust into a dual investigation: one that probes the hidden plots of anti-monarchist radicals and another that peels back the layers of betrayal within her own circle. Connally blends high-stakes espionage with emotional complexity to create a story that is both suspenseful and resonant.
Summary
The story begins in the early morning hours of June 21, 1815, with Lady Petra Forsyth in emotional turmoil after discovering a damning note suggesting Duncan Shawcross, her close friend and former lover, may have been involved in the death of her fiancé, Viscount Emerson Ingersoll. Believed to have died in an accident, Emerson’s demise is now cast under suspicion.
When Petra tries to confront Duncan, she finds he has fled using the hidden servant’s staircase. She also finds Teddy, a loyal street boy, in Duncan’s room, who relays a cryptic message from Duncan urging her to trust her inner compass, further deepening her confusion.
The same morning, Petra attends breakfast with Queen Charlotte and her godmother, the Duchess of Hillmorton. They brief her on her next mission—a suspicious death at the Asylum for Female Orphans in Lambeth.
A threatening note directed at the Queen was found beneath the body of the matron, raising concerns about the radical group known as the Bellowers. Despite the danger and the emotional strain of recent revelations, Petra agrees to investigate, determined to see justice served.
Petra visits Bardwell’s Apothecary, where her friend Frances confirms the matron’s death was murder—inflicted by a candlestick and marked with green silk, a possible clue. Petra also starts to reconsider the night Emerson died, suspecting he may have had secrets of his own.
At the orphanage, she meets the new matron Mrs. Yardley and Nell, a bright orphan who hints at a promised inheritance.
Petra also encounters the Dowager Marchioness of Langford, Duncan’s embittered stepmother, who confirms the tense dynamic within the Shawcross family. A letter implicating Duncan’s half-brother James in the radical plot adds weight to Petra’s suspicion that powerful families may be involved.
As the investigation intensifies, Petra finds herself drawn deeper into a complex web of conflicting stories and shifting loyalties. Mrs.
Yardley is attacked, and Nell is accused of theft and disappears. Petra finds a bloodstained tassel from Lady Vera’s reticule, prompting Vera to confess to hitting the matron during an argument, though she insists Huxton was still alive when she left.
Now three people—Vera, Yardley, and Nell—are plausible suspects, each with motive and opportunity, and Petra must sort truth from deception.
To gain more information, Petra sneaks into Buckingham House disguised as a delivery girl to access the intercepted letter tied to the Bellowers. Her plan is interrupted by Duncan, who prevents her from reaching her target.
During their confrontation, he denies killing Emerson but admits he once thought about it. He reveals that Emerson had changed his mind about the Bellowers and was killed before he could defect.
Someone else had taken the incriminating letter before either of them could retrieve it. Despite her reservations, Petra realizes Duncan is still protecting her, and she resolves to press on.
The mystery gains urgency when Nell is abducted in broad daylight. Teddy, who initially appears shocked, is later revealed to have orchestrated her rescue with Duncan’s help, confirming that Nell is safe.
Duncan’s message to Petra, delivered with the help of her dog, Sable, proves his loyalty. Meanwhile, Petra investigates a wooden box potentially tied to Nell’s inheritance and the orphanage’s role in the larger conspiracy.
She receives multiple pieces of information: an invitation from the Dowager Marchioness, a letter confirming Juddy Bellingham’s covert surveillance, and a diary from her friend Caroline. The diary raises new questions, especially about Phineas Rushton, a man with romantic ties to Emerson and a possible hidden agenda.
Petra confronts Lady Vera again and learns she had been cooperating with the Duchess all along. With the help of Lottie, a clever dog-trainer, Petra reconstructs the murder scene at the orphanage.
She discovers that Mrs. Huxton had conducted a visibility test before her death, raising suspicions that she may not have been a victim but was perhaps staging a trap.
The investigation takes another turn when Lottie discovers that the chapel’s back door had been oiled, contradicting Petra’s earlier belief that no one could enter undetected. This detail reopens the list of suspects and adds new uncertainty.
Back at home, Petra finds Duncan and his brother James reconciled. James, now married and changed, acknowledges Petra’s role in saving him from ruin.
A conversation about the Vauxhall Pleasure Gardens inspires Petra to suspect that the conspirators plan to use a specific celebratory transparency as a signal for their attack.
The climax unfolds at the orphanage, where Petra and her allies confront the full scale of the Bellowers’ plot. She uncovers the truth about Emerson’s death: he was involved with the Bellowers but tried to back out.
Rushton, his cousin and a radical leader, murdered him to prevent defection. Rushton had been operating under several aliases, including Mr.
Fife, and used his aunt—Mrs. Yardley—as a puppet to manage the orphanage and siphon off the orphans’ inheritances to fund their extremist plans.
With the help of Duncan, Frances’s improvised flower bombs, and a small group of loyal friends, Petra leads a courageous raid on the orphanage. She confronts Rushton directly.
In a decisive moment, Nell—revealed to be Emerson’s half-sister and rightful heir—helps Petra defeat him. The plot is stopped just before Prince Frederick can be harmed.
The radicals are arrested, their weapons seized, and the monarchy preserved. Petra ensures that Nell’s birthright is honored by giving her Emerson’s signet ring and securing her future.
In the aftermath, the Queen agrees to restore the orphans’ stolen inheritances and promises to address the more legitimate grievances that had originally fueled the Bellowers’ rise. The novel ends with a tone of healing and hope: Petra and Duncan reunite as lovers, their emotional wounds slowly mending.
Duncan’s new tattoo of the Cassiopeia constellation—matching Petra’s unique freckle pattern—symbolizes their enduring bond and shared journey through darkness into light. In every sense, Petra emerges as a woman of grit, grace, and moral clarity, having not only uncovered a treacherous conspiracy but also found peace with her past.

Characters
Lady Petra Forsyth
Lady Petra is the heart of the novel, a woman of noble birth whose inner world is layered with trauma, resolve, and a relentless thirst for truth. From the novel’s opening moments, Petra is portrayed not only as emotionally turbulent—shaken by the alleged betrayal of her former lover Duncan Shawcross—but also as deeply courageous, displaying strength when she chooses to confront the accusations rather than flee from them.
Her intelligence and instincts set her apart, especially in her capacity to operate as an investigator within the court’s political intrigues. She is not simply a passive participant in royal espionage but a driving force with the empathy to protect the vulnerable and the courage to risk herself for justice.
Her emotional landscape is particularly compelling. The deaths of both her former fiancé Emerson and the betrayal she suspects from Duncan are wounds that never quite close.
Yet she never allows them to paralyze her. Even while burdened by grief, Petra applies rationality and keen observation in uncovering conspiracies at the orphanage and deciphering coded messages.
Her relationships—with Queen Charlotte, with the Duchess of Hillmorton, with loyal friends like Frances, Vera, and Lottie, and even with the streetwise Teddy—demonstrate her rare ability to blend aristocratic elegance with grounded human connection. Petra’s arc is ultimately one of empowerment, forgiveness, and reclaiming truth from the depths of political and personal lies.
Duncan Shawcross
Duncan is a character suspended between suspicion and redemption. Introduced first through his absence—his sudden disappearance casting doubt over his role in Emerson’s death—he operates in the shadows for much of the narrative.
His clandestine maneuvers, like sending cryptic notes and orchestrating coded messages through Teddy and Petra’s dog, paint him as a man accustomed to secrecy. Despite this, Duncan’s loyalty never wavers.
His protection of Nell and his ultimate confrontation with Petra, where he bares his soul and denies any role in Emerson’s death, underscore a man haunted by possibilities but committed to honor.
Duncan’s relationship with his half-brother James and their shared estrangement from the Dowager Marchioness of Langford reveals his outsider status within his own family. Yet he maintains a sense of justice, a quiet moral compass that aligns him more with Petra than with his birthright.
His tattoo of the Cassiopeia constellation, a mirrored reflection of Petra’s freckles, becomes an emblem of their enduring bond—a romantic, yet stoic declaration of love built through hardship. Duncan emerges not as a villain, but as a deeply principled figure who, like Petra, must navigate betrayal and subterfuge with resolve and care.
Emerson Ingersoll
Though dead at the novel’s outset, Emerson’s legacy casts a long, complex shadow over the events of the story. Initially mourned as a tragic victim and revered as Petra’s lost love, he is gradually revealed to be a man of conflicted morals.
His entanglement with the radical Bellowers and eventual crisis of conscience complicates the reader’s perception of him. Emerson is not merely a casualty but a pivot point—his betrayal of the Bellowers is a noble act that results in his murder by Rushton, transforming him into a martyr figure in the resistance against tyranny.
His posthumous role enriches the themes of secrecy, ideological conflict, and redemption. He may have died regretting his early associations, but through Nell, his half-sister and heir, his name is symbolically cleansed.
Emerson, therefore, is a ghost who lingers, pushing Petra toward truth and justice, reminding her—and the reader—that people are rarely as simple as their reputations suggest.
Nell
Nell represents resilience, intelligence, and the innate strength of the overlooked. A young orphan, initially portrayed as perceptive but peripheral, Nell’s role grows dramatically as the mystery deepens.
Her keen observations help Petra unlock clues; her abduction catalyzes one of the story’s most suspenseful sequences. Yet her most startling revelation is her lineage—she is Emerson’s half-sister and rightful heir to his legacy.
This not only restores her lost identity but also underscores her symbolic role in reclaiming justice for the orphaned girls wronged by the Yardley-Rushton conspiracy.
Nell’s courage in the face of trauma and her capacity to assist Petra in the final confrontation make her more than just a plot device. She becomes a beacon of survival and vindication, affirming that heroism is not limited by age or social rank.
Her presence also deepens the emotional stakes for Petra, making the fight against the Bellowers more personal and urgent.
Frances Bardwell
Frances serves as both confidante and scientific mind within Petra’s circle. Her early medical assessments lend credence to Petra’s suspicions about the murder at the orphanage, and her calm demeanor acts as a grounding force amidst the escalating intrigue.
She bridges the world of empirical knowledge with personal loyalty, blending friendship with quiet, practical courage. Her participation in creating “flower bombs” for the final confrontation reflects her readiness to stand by Petra not just as an ally but as a combatant in the broader battle for justice.
Frances is a pillar of rationality and composure in an environment clouded by deception.
Lady Vera
Lady Vera’s arc is one of suspicion, confrontation, and ultimate redemption. Initially a suspect in Mrs.
Huxton’s death, her conflicting stories and hidden involvement with the Duchess cast her in an ambiguous light. Yet her genuine remorse and ultimate collaboration with Petra reveal a woman caught in a complex web of fear and loyalty.
Vera’s confession about striking Mrs. Huxton humanizes her, making her not a cold-blooded killer but a woman forced into a defensive act that spiraled into tragedy.
Her commitment to Petra’s mission after her exoneration repositions her as a trusted ally, embodying the complicated moral gray zones that many characters navigate.
Mrs. Yardley
Mrs. Yardley is perhaps the most insidious villain in the story—hidden in plain sight, donning the mask of a caretaker while embezzling funds and abetting treason.
Her ability to manipulate those around her, lie convincingly, and operate within the confines of the orphanage underlines a chilling pragmatism. As a co-conspirator of Rushton and a beneficiary of stolen inheritances, she reflects the rot that can fester beneath seemingly benevolent institutions.
Her past as Tessa Dodd adds another layer of deceit and hints at a long history of criminal intent. She is ultimately exposed and neutralized, but not before significantly contributing to the destabilization of vulnerable lives.
Phineas Rushton
Rushton embodies ideological extremism and the seductive pull of power. His many disguises—including that of Mr.
Fife—allow him to infiltrate different layers of society, manipulating events to serve the Bellowers’ radical vision. His murder of Emerson, betrayal of the orphanage system, and orchestration of the rebellion position him as the true architect of destruction.
Unlike other morally conflicted characters, Rushton is unapologetic and fanatical. His downfall at Petra’s hands, aided by Nell, represents the triumph of clarity over chaos, love over hate, and loyalty over treason.
He is a cautionary figure—a man so consumed by cause and control that he sacrifices humanity for ideology.
Teddy
Teddy is the quiet linchpin in several of Petra’s operations—a street-smart boy with resourcefulness beyond his years. His loyalty to Duncan, ability to decode messages, and performance in Nell’s staged abduction demonstrate his cunning and courage.
Teddy bridges the world of the elite and the impoverished, moving through both with savvy and dignity. His unwavering trust in Petra and Duncan reflects a belief in goodness and justice that complements the novel’s deeper themes.
Despite his humble origins, Teddy’s contributions are critical, proving that even the smallest players can tip the scales of fate.
James Shawcross
James, the Marquess of Langford and Duncan’s half-brother, transforms from an aloof aristocrat to a figure of reconciliation and gratitude. Initially part of the narrative’s toxic noble elite, he eventually thanks Petra for helping him escape ruin, implicitly acknowledging Duncan’s influence and Petra’s integrity.
His repaired relationship with Duncan symbolizes the broader healing taking place at the novel’s conclusion. James’s evolution, though not central, illustrates how even flawed men of power can change, offering a glimmer of redemption for the upper class complicit in society’s dysfunctions.
Themes
Treachery and Moral Ambiguity in Relationships
From its opening moments, the book roots itself in the disorienting terrain of betrayal, particularly within intimate bonds. Lady Petra Forsyth’s world is upended not by a foreign threat but by the suspected treachery of Duncan Shawcross, the man she trusted both romantically and professionally.
The emotional whiplash she endures—suspecting Duncan of murdering her former fiancé—sets the tone for a story where trust is precarious, and loyalty is often camouflaged in deception. The duplicity stretches beyond individual relationships; it permeates the upper echelons of society.
Petra’s investigation forces her to reconsider not just Duncan’s trustworthiness but also the loyalty of friends like Lady Vera and even her late fiancé, Emerson, whose involvement in political radicalism was hidden beneath the guise of nobility. Betrayal, therefore, becomes more than a personal slight—it is a social disease that threatens the fabric of monarchy and public trust.
What is most striking is how betrayal often masquerades as protection. Duncan, though seemingly a fugitive, continues to aid Petra from the shadows.
Lady Vera’s suspicious behavior is later revealed as motivated by fear and misplaced loyalty rather than malice. The story resists a simple delineation between villain and ally, instead inviting the reader to navigate a morally gray world.
Through Petra’s evolving understanding of the people around her, the novel examines how treachery is not always borne out of evil intent, but often emerges from fear, desperation, and misguided devotion.
The Weight of Legacy and Inheritance
Inheritance in the book extends far beyond financial assets; it becomes a battleground where class, power, and morality collide. Lady Petra’s pursuit of justice is complicated by hidden inheritances and unclaimed legacies, particularly those tied to orphans like Nell.
The Asylum for Female Orphans becomes symbolic of this theme—a place ostensibly for protection, yet exploited for theft and manipulation. The radical group known as the Bellowers uses the institution to siphon funds from the vulnerable, turning legacy into an instrument of rebellion.
Nell’s journey is especially telling. Initially perceived as a powerless orphan, she is later revealed to be the legitimate heir to Emerson’s legacy, linking her to the very aristocracy that sought to suppress her.
This discovery not only subverts expectations about lineage but also interrogates who is truly deserving of wealth and recognition. Emerson’s own legacy, muddied by his secret political affiliations and eventual change of heart, presents a contrast—he attempts to redirect his inheritance of influence toward redemption but is silenced before he can succeed.
Petra herself becomes a steward of these tangled legacies, deciding which truths to preserve and which must be exposed. By the novel’s end, the restoration of Nell’s rightful place serves as a redemptive act, reclaiming what was unjustly taken.
The theme articulates a larger critique of how power is passed down—not just biologically, but ideologically—and the consequences when it is manipulated for personal or political gain.
Female Agency and Subversion of Gender Roles
Lady Petra is not merely a protagonist; she is an anomaly within her historical context. As a woman entrusted with espionage, political investigation, and moral arbitration, she upends the gender expectations of 1815 Britain.
While societal norms attempt to confine her to ornamental roles—as a hostess, lover, or socialite—Petra actively subverts those limitations, conducting investigations, interrogating suspects, and orchestrating rescues. The Queen’s trust in Petra speaks volumes about her capabilities and the shifting role of women in a world on the cusp of modernity.
Her emotional resilience is tested by betrayal, heartbreak, and physical danger, yet she remains steadfast. Unlike male spies who operate with brute force, Petra’s strength lies in perception, empathy, and strategy—qualities that the narrative positions not as feminine weaknesses but as her greatest tools.
The novel also portrays other women like Frances Bardwell, Lady Vera, and Lottie as active agents rather than passive figures, each contributing critical intelligence or support. These women are not auxiliary to Petra’s mission—they are essential.
Even Nell, though a child, demonstrates grit and cunning, ultimately participating in the climactic showdown. Through these characters, the novel challenges the traditional association of masculinity with authority and capability.
Instead, it presents a cast of multifaceted women who claim space in political, emotional, and intellectual realms—on their own terms. The theme is not didactic; it is lived, as Petra embodies a quiet revolution against the patriarchy she navigates.
Political Radicalism and Class Discontent
The undercurrent of political unrest in book reflects a society strained by inequality, secrecy, and fear. The Bellowers, while painted as antagonists, represent a genuine frustration with the monarchy and the aristocracy’s stranglehold on power and wealth.
Their use of orphanages to fund a revolution—despite its cruelty—underscores a lack of viable avenues for reform. Emerson’s involvement with the group, and later, his intention to defect, paints him as a conflicted figure—idealistic but ultimately disillusioned.
His assassination by Rushton marks the moment where ideology succumbs to fanaticism, showing how revolutionary fervor can be corrupted by power and betrayal. The radicals’ use of disguises, coded messages, and manipulated inheritances highlight how class warfare is fought not just on the streets but through subterfuge.
Petra’s position is precarious—she is an aristocrat investigating the crimes of her own class. Yet her actions suggest a commitment to justice that transcends political allegiance.
The Queen’s eventual decision to restore the stolen inheritances and acknowledge the radicals’ grievances—without endorsing their violence—reflects a possible middle path: reform within tradition. By allowing such complexity, the novel refuses to offer simple heroes or villains.
Instead, it explores how desperation, idealism, and social inequality fuel unrest. It also emphasizes the responsibility of those in power to listen and adapt, lest the cycle of repression and rebellion continue.
Redemption and Emotional Healing
Amid the espionage, betrayal, and political intrigue, the emotional core of the novel centers on Petra’s quest for closure and healing. The trauma of losing Emerson, compounded by the belief that Duncan may have killed him, casts a shadow over Petra’s every decision.
Her ability to function—let alone lead an investigation—while emotionally fractured is a testament to her strength, but also to the human cost of unresolved grief. Her confrontations with Duncan are charged with not just anger but longing, and the eventual reconciliation between them does not come through grand gestures but through shared vulnerability.
Duncan’s honesty about his past, his efforts to protect Petra despite their estrangement, and the final symbol of his tattoo—Cassiopeia over his heart—signal a man striving for redemption, both in her eyes and his own. Similarly, Petra’s choice to forgive and to believe in Duncan again marks a pivotal step in her emotional recovery.
The act of giving Emerson’s signet ring to Nell symbolizes a redirection of legacy—not toward the past, but the future. This transfer of meaning, from lost love to renewed purpose, mirrors Petra’s emotional arc.
The final image of her and Duncan in peaceful intimacy doesn’t erase the pain they’ve endured, but it suggests that healing is possible. The novel doesn’t end with victory or vengeance—it ends with a reclamation of emotional balance, affirming that true strength lies in the ability to love, to trust, and to begin again.