64 pages 2-hour read

What We Can Know

Fiction | Novel | Adult | Published in 2025

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Character Analysis

Content Warning: This section of the guide includes discussion of gender discrimination, emotional abuse, addiction, child death, and death.

Thomas Metcalfe

Thomas Metcalfe is one of the novel’s two protagonists. His story, set in a speculative version of the world in the year 2119, provides a narrative frame for the story of the other protagonist, Vivien Blundy, who lives in the 2000s and 2010s. Thomas is a scholar of literary history who specializes in literature in English from 1990 to 2030. Consequently, he spearheads a postgraduate program focusing on this period at the University of the South Downs.


Thomas is defined by his fixation on the past, and his character arc involves moving beyond his idealization of the past and focusing on his future with Rose, developing the theme of Living With Hope in Times of Crisis. In Part 1, Chapter 12, he uses the story of biographer Robert Holmes’s imagined encounter with author Robert Louis Stevenson as a metaphor for his own relationship with the Blundys and their peers. Thomas describes his fixation as a feeling “beyond nostalgia,” partly because he is longing for experiences that he has only read but never lived through himself. When debating his preoccupation with Rose in Chapter 14, he makes it clear that he prefers the previous century because people were bold and reckless enough to invent new ideas. This also drives his frustration with the generation of students he is charged with teaching, as none of them show any interest in studying the past, believing it to be a time of folly rather than experimentation. The predominant strand of thought in Thomas’s era focuses on survival and preservation, not progress, a reaction to destructive climate change that is referred to within the novel as the Derangement.


Thomas’s fixation on the past is also his fatal flaw. It makes him ignorant of the urgent concerns of the present time, as demonstrated in his encounter with the politically active Lars Corbel in Chapter 18. It also prevents him from recognizing and addressing Rose’s emotional needs, causing their alienation over the course of their marriage. Most crucially, Thomas fails to admit how dependent he is on his obsession as a form of escapism. Thomas’s fascination is embodied by the quest he embarks on to unearth a missing poem by Francis Blundy entitled “A Corona for Vivien.” Although he exhausts his review on the sources that are accessible to him, he is reluctant to follow the leads that demand risk and additional effort from him, like the trip to the Kitchener archive and the mysterious number in Vivien’s journal. In the former case, the dangerous journey to reach the Kitchener archive becomes a convenient excuse for him to avoid visiting it altogether. In the latter, Thomas’s reluctance to work with the archivist Donald Drummond makes him hesitate to decipher the true meaning of the number. When he can no longer glean new insight from the old sources, Thomas resigns himself to immersion in quotidian details about the Blundys’ lives instead of investigating the remaining leads. He only realizes the extent of his flawed thinking after Drummond’s discovery that the number can lead them to the burial site of Vivien’s manuscript.


Thomas grows as a character through his relationship with Rose. Thomas and Rose share a mutual interest in the value of humanistic study, though Thomas’s flaws prevent him from applying humanist values to their relationship. When Rose explains her affair with Kevin Howard in Chapter 19, she cites his indifference to her emotional needs as the reason for her infidelity. In Chapter 21, when Thomas and Rose embark on their journey to the burial site of Vivien’s manuscript, Thomas resolves to reshape his life around Rose: “[O]nly by being together, sharing difficulties as we had yesterday and today and solving them, could we act out, rather than analyse, our best path into the future” (200). This explicitly marks the transposition of Thomas’s humanist values onto their relationship, centering his shared life with Rose instead of his self-serving obsession with the past. This prepares him for the final twist of his narrative, in which he realizes that Francis’s poem is unrecoverable, and he must reckon with the facts available to him.

Vivien Blundy

Vivien Blundy is the second of the novel’s protagonists. Part 2 of the novel represents her manuscript, which Thomas and Rose find at the burial site where the Barn was previously located. Vivien is revealed to have written this manuscript as a memoir of her relationships with Percy Greene and Francis Blundy. Consequently, this memoir fills the gaps of Thomas’s research, allowing him to critically assess the cultural value of “A Corona for Vivien,” which Francis wrote in honor of Vivien’s 54th birthday.


Early in her memoir, Vivien shares her backstory, which is dominated by the impact that her misogynist father had on her life. Vivien identifies two specific outcomes of her father’s treatment of her on her behavior. First, Vivien is attracted to “emotionally insufficient” men, a trait evident in the pattern of the various affairs she engages in, particularly those with Harry Kitchener and Francis. Percy Greene is the outlier among Vivien’s relationships, representing her desire to break away from the influence of her father on her romantic life. Second, Vivien experiences a regular compulsion to create order in her environment. This partly explains the domestic role she occupies at the Barn during her marriage to Francis. Because Francis does none of the housework, Vivien is forced to give up her career in scholarship and maintain the house she shares with her husband. Francis effectively weaponizes Vivien’s compulsion to extend his power over her. Over time, Vivien learns to resist Francis’s control, as suggested by the journal entry she addressed to him, in which she wondered if his gift poem signaled a turning point in their household dynamics.


Vivien’s backstory also frames her as a character who struggles against inaction, connecting to the theme of The Value of Failure. Vivien reveals that she once had a daughter named Diana, who died in infancy due to neglect. Vivien’s experience of drug and alcohol addiction during her early adulthood caused her to “forget” about Diana while she was throwing a house party. The novel frames this as the central event of her adult life before the memoir begins. The first event of the memoir features Vivien encountering an abandoned child named Christopher, who reminds her of Diana. Thoughts of Christopher haunt Vivien throughout the memoir, reminding her of what she lost because of her neglect. She failed to act in order to preserve her daughter’s life, despite the knowledge of Diana’s precarity. This mirrors the novel’s preoccupation with climate change, positioning the Derangement as the result of humanity’s indifference and neglect of the symptoms of global heating.


Vivien’s passivity during Percy’s murder parallels Vivien’s inaction during Diana’s death. Where Vivien fails to attend to Diana’s needs because she is busy indulging herself at the house party, she also fails to intervene when Francis comes to kill Percy because she has come to accept Percy’s death as a requisite for her idyllic life with Francis. While she initially denies her complicity in Percy’s murder, Vivien comes to acknowledge her guilt the longer she is exposed to Francis’s domineering and egotistical character. When Francis gifts her with “A Corona for Vivien,” she learns to resist him, believing that he has used the poem to consolidate his power over both Vivien and the memory of Percy. This motivates her decision to destroy the poem, realizing its potential to immortalize Francis as the great poet of his time in spite of his amoral character, and working toward Dispelling the Myth of the Great Artist. For the remainder of her life, Vivien devotes herself to resisting Francis’s power, which she extends in solidarity to Jane Kitchener when Jane seeks to restore her family’s privacy and well-being in the wake of Harry’s transgressions.


The writing of the memoir represents Vivien’s final victory over her flaw of inaction and marks her as a dynamic character who completes her arc. Realizing that the memoir will implicate her in Percy’s death, she confesses to her role for the sake of speaking the truth. If she had been unable to save Diana and Percy’s lives in the past, her memoir represents the attempt to give them justice and prevent others from making her mistakes in the future.

Francis Blundy

Francis Blundy is the antagonist of the novel. He is initially presented as the primary subject of Thomas’s study, the author of “A Corona for Vivien,” the lost poem that Thomas is trying to resurface. In Thomas’s time, Francis is considered one of the foremost poets of his era, though his reputation still pales in comparison to a later, more popular writer named Mabel Fisk, who is compared by Thomas to Shakespeare in Part 1, Chapter 11. This allows Francis to occupy a middle ground in terms of reputation. He is famous enough to merit his own area of expertise, yet he remains obscure to the general population of Thomas’s students, who are uninterested in studying the past. During his study of Francis’s life, Thomas also acknowledges that Francis was a climate change denier, underscoring his obscurity as a research subject, since “A Corona for Vivien” is seen as an environmentalist poem. Despite his outspoken values, Francis accidentally becomes an icon of the climate-change movement.


Thomas idolizes Francis as someone who lived boldly and recklessly enough to invent new ideas and modes of expression, a value that Thomas tries to impress on his own students. Despite Thomas’s admiration for Francis, the first part of the novel continuously alludes to the wicked parts of his private character. For instance, it is suggested that Francis has little affection for his wife, Vivien, when he fails to greet her on the morning of her birthday. When he returns to his study after encountering her, his notes fail to mention her at all, let alone acknowledge the event of her birthday. This contradicts the gesture of his gift to Vivien at the Second Immortal Dinner, which includes the reading of “A Corona for Vivien” in front of their party guests. Vivien’s memoir in the second part of the novel reconciles this contradiction by making it clear that Francis has written the poem in honor of himself. The poem includes a depiction of Francis’s murder of Percy in order to sustain his relationship with Vivien. When Vivien confronts him over it, he gaslights her by claiming that it is an attempt to step out of his comfort zone to speak to Vivien’s interests. Francis remains a static character whose ego ultimately becomes his downfall as he destroys all the other drafts and notes of his poem, unwittingly giving Vivien the power to subvert his legacy.

Rose Church

Rose Church is the romantic interest and foil for Thomas. She is Thomas’s colleague at the University of the South Downs with a similar interest in literature in English from 1990 to 2030. This interest extends into the relationship between literature and society, as evidenced by the monograph she writes on the inadequacy of realist fiction to capture the social atmosphere of the 2020s. Rose and Thomas have a prior romantic history, though the novel picks up on the continuation of their relationship, which eventually leads to marriage.


Rose is a foil for Thomas because she exposes his idealism of the past as a major character flaw. When Thomas insists on focusing his research on the rediscovery of Francis Blundy’s lost poem, Rose urges him to give it up in favor of research on available sources. This suggests her belief that humanistic study should be pragmatic rather than purely idealistic. This becomes a major source of conflict between their characters as Thomas’s obsession makes him oblivious to Rose’s emotional needs. Rose becomes unfaithful to Thomas, having an affair with one of their students, an action that reflects her interest in a partner who lives in the present, rather than in the past. Thomas eventually acknowledges that he must re-center his life around his relationship with Rose in order to pursue a life with her, and their relationship introduces additional tension and moral and emotional stakes to Thomas’s fixation, which he must learn to overcome for the sake of his romance.


Rose’s willingness to accompany Thomas on his expedition to the Barn points to her care for him, developing her as understanding and nonjudgmental. Despite the strain in their relationship, Rose understands how important it is for Thomas to follow a brand-new lead in his research. Even though she discouraged his obsession in the past, the expedition actualizes the potential of the poem’s rediscovery. When that expedition results in the discovery of Vivien’s memoir, Rose is the one who assures Thomas that all is not lost in line with her pragmatic beliefs, cementing her role as an agent of change in Thomas’s life.

Percy Green

Percy Greene is a romantic interest for Vivien and one of the novel’s most tragic figures. He is Vivien’s first husband, whom she cheats on with Harry Kitchener and, later, Francis Blundy. Percy is a violin maker and a jazz banjo player. This removes him from the world of letters, which Vivien uses to justify her affairs, finding his lack of interest in literature to be unacceptable.


Percy represents Vivien’s desire to break away from the trauma of her emotionally abusive upbringing. He is characterized as a gentle and kind man who shows empathy to Vivien in her moments of vulnerability, especially during her confession of Diana’s story. This contrasts him with Harry and Francis, who replicate the patterns of Vivien’s father’s misogynistic behavior in Vivien’s life.


Percy has Alzheimer’s disease, which tests Vivien’s love for him by making him unrecognizable as the Percy she fell in love with. This disconnect engenders her desperation to escape to her relationship with Francis, as well as her complicity in Francis’s plan to kill Percy. Vivien’s failure to intervene during Percy’s murder signals her moral failure, which is paralleled by her failure to attend to Diana. Percy remains a static character whose role in the novel is to highlight Vivien’s initial state of passivity, and his death provides the impetus for her to overcome it.

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