One Yellow Eye Summary, Characters and Themes
One Yellow Eye by Leigh Radford is a novel set in a post-apocalyptic world where a zombie-like virus ravages London. The story follows Kesta, a biomedical scientist who is struggling with grief and the emotional aftermath of the virus outbreak.
Her husband, Tim, has become infected and transformed, and Kesta’s obsession with finding a cure for the virus leads her into a high-security government project. As she navigates the tensions within the project and faces her own personal battles, she is confronted by the ethical dilemmas of science, the consequences of her actions, and the haunting reality of her husband’s fate. One Yellow Eye is a thought-provoking exploration of love, loss, and the moral cost of survival in a world forever changed by disease.
Summary
The world is in chaos due to a devastating infection that turns people into aggressive, zombie-like creatures. Kesta, a biomedical scientist, is deeply affected by the outbreak, especially as her husband, Tim, was one of the victims.
After Tim is bitten, he becomes infected and eventually dies, though Kesta’s denial and emotional trauma lead her to continue treating him as if he could be saved. Her obsession with finding a cure for the virus drives her into an experimental research project called Project Dawn, which is investigating the virus.
Kesta attends therapy at a group called the Zombie Apocalypse Recovery Group (ZARG), where survivors of the outbreak share their grief and trauma. Many of the group members, such as Carol, are haunted by the loss of loved ones and the decisions they made in the wake of the infection.
Despite her own intense grief, Kesta isolates herself from the group, focusing instead on her promise to Tim that she would find a cure for the virus that caused his transformation.
While Tim has been turned into a zombie, Kesta has managed to keep him alive using experimental treatments, including blood transfusions and painkillers. She meticulously monitors his condition, documenting every detail in the hope that she can discover a way to halt or reverse the progression of the virus.
However, Kesta is faced with pressure from others in the therapy group, particularly Tina, who accuses her of not doing enough to help find a cure.
Kesta’s personal life is fractured as she struggles with the emotional toll of Tim’s transformation and death. She regularly drinks at a local bar, where she meets her friend Jess, a doctor who exhibits a more carefree attitude toward the pandemic.
Jess urges Kesta to move on, but Kesta’s fixation on Tim’s death and her desire to find a cure keep her trapped in the past.
Kesta’s hope for a cure lies with Project Dawn, a government initiative focused on studying the virus. After months of uncertainty, Kesta is accepted into the project and begins her work at a high-security research facility located beneath a disused tube station.
The facility is sterile and heavily guarded, and Kesta is both excited and anxious about the opportunity to contribute to the project. However, the secrecy surrounding the project raises concerns, especially as she is asked to sign nondisclosure agreements and given limited information about the virus.
Kesta’s work at Project Dawn involves reviewing tissue slides and analyzing samples from the infected. The virus is unlike any known pathogen, with symptoms that do not align with traditional diseases.
As the team works tirelessly to understand its origins, Kesta grows frustrated with the lack of progress and the secrecy that surrounds the research. Her colleague, Dudley, becomes more involved with Professor Lundeen, the project’s leader, and Kesta begins to suspect that there is something darker at play within the facility.
Kesta uncovers a disturbing possibility: the virus may have originated from Madagascar, where animal-borne viruses could have mutated to create the zombie pathogen. However, when she presents this theory to the higher-ups, she is dismissed.
This fuels Kesta’s growing sense of unease, and when an alarm sounds in the facility, the researchers are locked in with no explanation, heightening her suspicions that something has gone terribly wrong.
Over time, Kesta grows increasingly disillusioned with the project. While she continues her research, her mind remains preoccupied with Tim’s condition and the possibility that the project’s true purpose might not be to find a cure but to develop more dangerous experiments with the virus.
Tensions between Kesta and her colleagues rise, and Kesta finds herself at odds with Dudley, who accuses her of being secretive about her actions and of violating the project’s protocols.
In a twist, Kesta begins working with a patient known as Patient 2468, a zombie-like individual who has survived in a sewer for months. This patient is used as a subject in the lab, offering further evidence of the virus’s disturbing effects.
Kesta and the other researchers are forced to confront the ethics of experimenting on the infected to better understand the virus. As Kesta’s internal conflict deepens, she becomes increasingly torn between her scientific work and her desire to save Tim.
Kesta’s personal life reaches a breaking point as she continues to grapple with her guilt over Tim’s condition. She is haunted by the idea that she might not be able to save him and that her work might not lead to the cure she desperately seeks.
Her involvement in the project brings her into conflict with Dudley, who accuses her of taking slides from the hospital and working beyond her official duties. Their strained relationship adds to the tension surrounding Kesta’s role in the project.
In the midst of her emotional turmoil, Kesta becomes involved in a series of increasingly dangerous experiments at Project Dawn. She is pushed to use more aggressive methods to understand the virus, including working with sedatives and experimental treatments.
The project’s objectives become more ambiguous, and Kesta begins to suspect that the research may be leading to a more sinister outcome than she had imagined.
Kesta’s obsession with finding a cure reaches a boiling point when she injects herself with Tim’s infected blood, hoping to find a solution or perhaps cure herself in the process. She survives the transformation process but her physical condition deteriorates.
As she undergoes the painful experience, she is forced to confront the moral implications of her actions. Meanwhile, Tim’s condition worsens, and Kesta’s emotional state deteriorates further as she faces the reality that he may never recover.
Kesta’s journey ultimately leads her to a moment of crisis when she realizes that her obsession with saving Tim has consumed her. The project, her work, and her personal sacrifices all lead her to the unsettling conclusion that she may have crossed an ethical line.
As she struggles to find a solution to the virus, she grapples with the reality that science may not have the answers she seeks. Her hope for a cure clashes with the grim reality of the world she now inhabits, and in the end, Kesta must confront the consequences of her actions, both for herself and for the future of humanity.

Characters
Kesta
Kesta is the central character of One Yellow Eye and is deeply affected by the apocalyptic chaos caused by the zombie-like infection that has ravaged London. As a biomedical scientist, she carries a heavy burden of guilt and responsibility for her late partner Tim’s death and subsequent transformation into one of the infected.
Her life revolves around the dual obsession of trying to cure the virus and maintaining the remnants of her relationship with Tim, who remains alive in a degraded zombie-like form in her home. Kesta’s work at Project Dawn, a government initiative investigating the virus, provides her with the opportunity to explore potential cures, but also exposes her to the moral and ethical conflicts that arise from experimenting with the virus and its infected subjects.
Her emotional isolation and her inability to move on from Tim’s death create a significant psychological strain, causing her to distance herself from the grief and pain of others around her. Despite these internal battles, Kesta holds onto a sliver of hope that her scientific expertise will lead to a cure, even as she begins to question the true purpose of the research at Project Dawn.
The weight of her personal tragedy and the mounting pressure of her professional obligations leave her struggling to maintain any semblance of normalcy.
Tim
Tim, Kesta’s late partner, plays a pivotal role in shaping Kesta’s emotional journey. His tragic death and subsequent zombification serve as the catalyst for Kesta’s obsessive pursuit of a cure for the virus.
Tim’s transformation is a constant reminder to Kesta of her failure to save him, and his condition symbolizes the irreversible nature of the infection. In life, Tim was a loving and protective partner who sacrificed himself by running away when he was bitten, trying to spare Kesta from witnessing his transformation.
His sacrifice showcases his deep love and the selflessness that defined their relationship. As Kesta continues to care for him in his zombie-like state, Tim becomes both a symbol of loss and a source of Kesta’s relentless hope.
His ongoing existence in a deteriorated form raises moral questions for Kesta, challenging her to balance her deep emotional connection with the scientific and ethical boundaries of her work.
Carol
Carol, a member of the Zombie Apocalypse Recovery Group (ZARG), serves as a representation of the trauma that many survivors experience following the outbreak. Her story is one of immense guilt and grief, particularly over the decision to report her husband, who had been infected, leading to his execution.
Carol’s trauma highlights the emotional toll of the outbreak on the survivors, who are often forced to make life-or-death decisions in moments of crisis. While Kesta attempts to remain emotionally detached, Carol’s raw pain and sense of responsibility towards her husband’s death contrast sharply with Kesta’s internal conflict.
Carol’s role in the therapy group functions as a counterpoint to Kesta’s more scientific, detached approach to the virus and its effects, providing a glimpse into the varied ways people cope with the aftermath of the infection.
Jess
Jess, Kesta’s friend and confidante, provides a lighter and more cynical perspective on the virus. As a doctor, Jess exhibits a more cavalier attitude toward the pandemic, often making jokes about the situation.
While Kesta finds comfort in their friendship, Jess’s approach to the crisis stands in stark contrast to Kesta’s obsessive focus on Tim and the search for a cure. Jess encourages Kesta to look forward and move on from the past, offering a perspective that Kesta struggles to accept.
Despite Jess’s well-intentioned advice, Kesta remains trapped in the past, fixated on the idea that Tim’s condition can be reversed. Jess’s role in the story is important for grounding Kesta’s emotional journey, as she represents a voice of reason and practicality that Kesta has difficulty heeding.
Tina
Tina, another member of the therapy group, plays a critical role in challenging Kesta’s emotional detachment and questioning her commitment to finding a cure. Tina accuses Kesta of not doing enough to help find a solution to the virus, putting Kesta in a position where she must confront her own feelings of inadequacy.
While Tina’s accusations are harsh, they underscore the collective frustration that many survivors feel about the lack of progress in finding a cure. Kesta’s strained response to Tina’s criticisms highlights the deep personal turmoil she experiences, as she feels the weight of her responsibilities both as a scientist and as a grieving widow.
Tina’s confrontational nature forces Kesta to reexamine her motivations and the potential consequences of her actions, especially in the context of the government’s secretive research at Project Dawn.
Dudley
Dudley, Kesta’s colleague at Project Dawn, serves as both a professional ally and a source of tension for Kesta. While he works alongside her in the lab, the two are often at odds over the ethics of their research.
Dudley becomes increasingly suspicious of Kesta’s secretive actions, particularly regarding her unauthorized experiments with Tim’s condition. Their interactions reveal the moral and professional complexities of working in a high-stakes, secretive research facility, where trust and transparency are paramount.
Dudley’s involvement in the project, especially his growing closeness to Professor Lundeen, raises questions about the true intentions behind Project Dawn. His conflict with Kesta emphasizes the ethical dilemmas they both face, as they grapple with the ramifications of working with the infected and the potential dangers of the virus.
Professor Lundeen
Professor Lundeen is the ambitious and controlling leader of Project Dawn, a character whose motivations and actions become increasingly suspicious as the story unfolds. He oversees the research on the virus, but his desire for fame and recognition creates an atmosphere of secrecy and tension within the team.
Lundeen’s leadership style is erratic and often dismissive of the concerns raised by Kesta and others, particularly when it comes to the ethical implications of the experiments they are conducting. Kesta’s growing unease with Lundeen reflects her increasing doubts about the true purpose of Project Dawn and the possibility that the research may be more focused on manipulating the virus for nefarious purposes rather than finding a cure.
Lundeen’s actions and decisions are integral to the unraveling of the plot, as they reveal the darker side of scientific research in a world consumed by a global pandemic.
Cooke
Cooke, one of the researchers at Project Dawn, hints at the true nature of the research taking place in the facility. His suggestion that the project may be involved in Gain-of-Function research—mutating the virus to enhance its deadliness—adds a layer of conspiracy and danger to the story.
Cooke’s role is to introduce doubt into Kesta’s mind, pushing her to question the ethical boundaries of the project and the motives of those in charge. As Kesta unravels the mysteries of Project Dawn, Cooke’s subtle warnings about the true nature of the research become more significant, challenging Kesta to confront the possibility that her work may contribute to a greater evil rather than a cure.
Themes
The Struggle Between Hope and Reality
In One Yellow Eye, the theme of hope versus reality is central to the character of Kesta and the choices she makes throughout the novel. Kesta’s unwavering belief that she can find a cure for the virus that has turned her husband Tim into a zombie-like creature represents a desperate desire for hope in a world ravaged by catastrophe.
Her obsession with saving Tim drives much of her emotional and scientific pursuits, as she works tirelessly, often at great personal and ethical costs, to discover a cure. Despite the mounting evidence that the virus is beyond saving and that her methods may be dangerous, Kesta clings to the hope that science, her expertise, and her love for Tim will eventually restore him to the man he once was.
However, this hope increasingly conflicts with the stark reality of the virus’s nature. The progression of Tim’s condition, coupled with the moral ambiguities of the research at Project Dawn, forces Kesta to confront the limitations of both science and human will.
The collapse of her idealistic vision of finding a cure for Tim highlights the painful truth that sometimes, no matter how hard one tries, some things are beyond saving. In this battle between hope and reality, Kesta’s journey becomes one of self-sacrifice and moral reckoning, as she must learn to navigate the harsh truths of her situation while grappling with the emotional consequences of her decisions.
Guilt and Personal Responsibility
Throughout One Yellow Eye, guilt is a pervasive theme that deeply affects the protagonist, Kesta. From the moment Tim is infected, Kesta’s feelings of guilt are compounded by the fact that she was unable to protect him from the virus, and later, from the irreversible transformation that follows.
Her inability to save him becomes a defining aspect of her psyche, and she feels responsible not only for his infection but also for his eventual death. These feelings of guilt are intensified by her secretive and controversial actions, such as keeping Tim alive in a zombie-like state at home, which she knows is morally and legally questionable.
The theme of guilt is also present in Kesta’s interactions with the other survivors in the therapy group, particularly Tina, who accuses her of not doing enough to find a cure. Tina’s harsh words reflect the broader guilt that Kesta carries, not just for her failure to save Tim but for her perceived failure to act for the greater good.
The tension between her personal responsibility to Tim and her professional responsibility to find a solution for the pandemic creates a complex web of emotional turmoil for Kesta, who must come to terms with the consequences of her actions. Guilt, both personal and shared, permeates the narrative and serves as a constant reminder of the emotional cost of survival in an apocalyptic world.
The Ethics of Scientific Exploration
The ethical implications of scientific work form a major theme in One Yellow Eye, particularly as Kesta becomes more involved in the research at Project Dawn. The project, which is tasked with studying and understanding the virus, is shrouded in secrecy, and the methods employed raise troubling questions about the morality of the experiments being conducted.
Kesta, a scientist herself, is faced with a difficult dilemma: she wants to find a cure for the virus, but the research being conducted may not be in line with her ethical beliefs. The treatment of infected subjects, including the use of sedatives and experimental procedures, disturbs her, as she grapples with the idea of manipulating and experimenting on the infected to understand the virus better.
This conflict between the pursuit of knowledge and the ethical responsibility to protect life is a key point of tension in the novel. As Kesta’s research progresses, she grows increasingly disillusioned with the motives behind Project Dawn, suspecting that the team may be involved in more dangerous, unethical practices, such as Gain-of-Function research.
Her growing discomfort with the lack of transparency and the potential for harmful experimentation forces her to question her own involvement in the project. The theme of ethics in science is explored through Kesta’s inner turmoil and her struggle to reconcile her scientific curiosity with the moral implications of her actions.
Isolation and Emotional Distance
In One Yellow Eye, isolation—both emotional and physical—plays a crucial role in the development of Kesta’s character and the narrative itself. As the pandemic spreads and the world around her collapses into chaos, Kesta becomes increasingly disconnected from those around her, unable or unwilling to share her grief and trauma.
Her involvement in the Zombie Apocalypse Recovery Group (ZARG) offers little solace, as she isolates herself from the collective mourning of others, choosing instead to focus on her work. Kesta’s emotional distance is particularly evident in her interactions with the survivors in the group, where she maintains a clinical detachment, not allowing herself to fully engage with their pain.
This self-imposed isolation is a defense mechanism, as Kesta is unable to cope with the loss of Tim and the overwhelming grief that comes with it. Her focus on finding a cure becomes a way to distract herself from her emotional wounds, and the therapy sessions become less about healing and more about maintaining control over her emotions.
Kesta’s physical isolation is also significant, as she remains mostly alone in her work at Project Dawn, separated from her colleagues by secrecy and distrust. Her growing sense of isolation intensifies her internal struggles and contributes to her eventual paranoia and disillusionment with the project.
The novel explores how isolation, whether chosen or forced upon someone, can amplify grief, guilt, and the emotional toll of survival in a world defined by loss.
Love, Sacrifice, and Survival
At the core of One Yellow Eye is the theme of love and sacrifice, especially as it relates to Kesta’s relationship with her husband, Tim. Kesta’s love for Tim drives much of the narrative, particularly in her relentless pursuit of a cure to reverse the zombie-like infection that has taken over him.
This love is juxtaposed with the sacrifices Kesta is willing to make to save him. She endures emotional and physical suffering, making ethically questionable decisions, all in the hope that she can bring Tim back.
Kesta’s sacrifice is also seen in her willingness to risk her own life and sanity in the process. Her decision to infect herself with Tim’s blood, in the hope that it will help her find a cure or a solution, exemplifies the lengths she is willing to go for love.
However, the sacrifice is not without consequences. As the story progresses, Kesta faces the devastating realization that the love she is trying to preserve might have been lost forever, as Tim’s transformation is irreversible.
This theme explores the complex nature of love, where it is not always enough to overcome insurmountable odds. It also raises questions about the cost of survival—whether the sacrifices made in the name of love are worth the emotional and ethical toll they take on a person.
Through Kesta’s journey, the novel underscores the tension between love’s power and its potential for destruction when faced with an unforgiving reality.