49 pages • 1 hour read
Emily HabeckA modern alternative to SparkNotes and CliffsNotes, SuperSummary offers high-quality Study Guides with detailed chapter summaries and analysis of major themes, characters, and more.
Wren is Shark Heart’s protagonist. She is highly organized and practically minded, with an unspecified job in finance. The narrator explains her reasons for being this way, telling readers, “Her routine was even, predictable, and managed. She would do almost anything to protect her ordinariness. […] Some might consider Wren’s life boring, but boring missed the point. She was unshakable” (15). This fear of being unsteady stems from the instability of her childhood, when her mother Angela’s mutation diagnosis made everything in her life uncertain. Part 2 explores this backstory in detail, laying bare the reasons for Angela’s dysfunction and the effects of that dysfunction on Wren.
Because of her troubled past with Angela, Wren has a complex relationship with motherhood. She is hesitant to become a mother, despite pressure from Lewis’s parents and others, because of how motherhood stifled the course of Angela’s life. Nevertheless, she begins longing to have children with Lewis, and this desire becomes an unspoken wish over the course of her time caretaking for him. Her realization that she is pregnant during the Epilogue functions as a deus ex machina moment, resolving the internal conflict she felt over whether to become a mother.
Wren’s marriage to Lewis challenges her to develop, as Lewis has the opposite worldview to her in many ways. His dreamy, impractical outlook influences her heavily, and by the end of their relationship, she finds herself engaging in the same idealistic thought processes. When she proposes her plan to stay with Lewis on a boat in the ocean, “Lewis [feels] proud. Wren, his practical, enduring wife, [is] dreaming” (156). In this moment, Habeck articulates Wren’s character development explicitly and succinctly; whereas before she was fiercely practical, her journey with Lewis has encouraged her to engage in impractical, aspirational thinking. Transient but Formative Female Relationships, such as the one she shares with Tiny Pregnant Woman, further facilitate this change, as does Wren’s own experience of motherhood. She learns to let go of control by watching her daughter, Joy, in a constant state of growth and development.
Lewis is Wren’s husband, the titular shark in Shark Heart. He and Wren characterize each other through contrast. Where Wren is highly organized, Lewis is highly disorganized. Where Wren is concerned with immediate reality, Lewis daydreams and adheres to a view of Life as Metatheater. Where Wren is emotionally reserved, Lewis is overflowing with emotions that he longs to share. The narrator reports, “Lewis learned he had to step lightly when he showed Wren his heart. Because Lewis was a man of enormous feeling, this was the most challenging part of their relationship” (16-17). In this sense, Lewis’s relationship with Wren does not conform to his ideal notion of romantic love. Their marital conflicts flow from such temperamental disconnects, with Lewis’s flaws serving as the antithesis to Wren’s. However, their differences are also complementary, with Wren’s practicality facilitating Lewis’s artistic growth.
When he becomes a shark, Lewis’s practical and emotional needs shift drastically. His instinct to hunt and kill other animals is irrepressible and initiates self-loathing in his gentle human spirit. He tries to accept that his new physical life as a great white—solitary, predatory, and without art—will take precedence over his still very human emotional needs. Deep down, however, his longing for community is still there, and it motivates him to become Margaret’s companion. The imaginary town that he builds with her is a manifestation of all the human hopes he never fulfilled and all the human experiences that he cannot have in the ocean. In a sense, Lewis never fully becomes a shark because he remains committed to his human creativity.
Angela, Wren’s mother, is a secondary character who shifts toward a protagonist role in Part 2, when her story becomes the narrative focus. Angela shares similarities with both Wren and Lewis. Like Wren, she grows up with a mother who cannot effectively parent her and is traumatized by that experience. She searches for outlets to cope with that trauma, but unlike Wren, who turns to hard work and organization, Angela seeks out romantic and sexual validation in the form of Marcos. Though this decision temporarily assuages her insecurities and fulfills some of her emotional needs, it ultimately endangers her when Marcos reveals himself to be physically and emotionally abusive.
Like Lewis, Angela is diagnosed with a mutation that turns her into a predatory animal (in this instance, a Komodo dragon), symbolically challenging her to come to terms with her own mortality. She insists to Wren, “I’m not dying. / I’m changing” (302), at the same time that she expresses uncertainty about how those things are practically different. This moment reveals her vulnerability as both a mother and a human, as she tries to reassure her daughter despite feeling unsure herself. Ultimately, the mutation undermines her ability to be a functional mother, leaving Wren to become her caretaker. Angela does not choose this incapacity, and she worries about the effects on Wren from the moment of her diagnosis: “How do I protect others when I become venomous? [...] Will I be able to care for Wren? And the worst: Will Wren have to care for me?” (296). Her fears about violence and about Wren’s well-being speak to her deep desire to provide Wren with supportive, safe mothering.
While there are violent moments during Lewis’s transformation and life as a great white shark, Habeck portrays the violence of Angela’s mutation much more viscerally. In particular, the scene where she eats a golden retriever marks an escalation in the book’s depiction of graphic violence: “Her face was a mask of blood and fur, and her tongue hung past her chin, dripping bloody saliva onto the khaki dress she used to wear to work” (312). The dog is the first nonhuman victim of a character’s violence in the book, and Wren’s strong conviction that her mother is a “monster” after the incident echoes the horror readers are meant to feel while also establishing the depth of Wren’s trauma. Angela’s final words to Wren in the novel, offered in response to Wren’s accusation, are “I know. I am” (312)—a statement that reveals Angela’s self-loathing over a condition she had no control of.
Margaret C. Finnegan, another secondary character, is the companion whom Lewis finds as a great white shark. She is another former human, diagnosed with her shark mutation as a child. She has a far more youthful, ebullient character than Lewis, as if her personality became frozen in the moment of her transformation. Lewis perceives this youthful energy as immaturity: “Margaret made Lewis recall his early days of student teaching, when he had a weak command of the classroom,” (337-38). However, Margaret’s childlike optimism is what enables her to survive in the ocean without spiraling into a depression like Lewis.
Margaret has an idealistic fixation on the White Shark Cafe, a location in the Pacific Ocean where great white sharks from all over the world gather to hunt and breed. She views the cafe as an opportunity for community, telling Lewis, “We could start a town. A place for people, sharks, like us. I know there are others” (348). This desire for a shark town mimics Lewis’s longing for community, but unlike Lewis, Margaret is optimistic about her ability to find that community, and it motivates her to keep living. Eventually, Lewis comes to understand the existential necessity of her hope, as the narrator explains: “He not only missed Margaret, he also understood—and shared!—her hope and longing for community. So, maybe love wasn’t an unwieldy accessory in times of peril. Maybe it was the key to survival” (363). Though initially presented as a childish character, Margaret therefore emerges as wise in ways that Lewis is not.
While Margaret occupies less narrative space than any other central character in Shark Heart, her unexpected arrival in Lewis’s life has a profound impact on his character development and, by extension, the course of the narrative. Her ability to live cheerfully in the ocean, enjoying the experiences that Lewis feels agony over, challenges him to see the world from her perspective.