Trees and the Treehouse Symbol in Shark Heart: Lewis's Enduring Love and Legacy

The Symbol in Two Forms: Trees and the Treehouse in Shark Heart

In Shark Heart, trees and the treehouse form a paired symbol that carries Lewis's enduring love and legacy across the novel. The live oaks at his wedding stand as living witnesses to his commitment, while the treehouse he designs—and that is later built for his daughter Joy—becomes a physical structure that keeps his presence alive. The symbol recurs in different forms: as natural trees, as blueprints, and as a built structure, each iteration shifting its meaning from romantic union to creative anticipation, then to grief and finally to legacy.

The Live Oaks: Witnesses to Love

At the wedding in April, Lewis is moved to tears by the four live oaks behind him, the trees of his boyhood imagination that serve as his best men. These trees are not passive scenery; they stand in for the friends Lewis might have had, grounding his marriage in the natural world he has loved since childhood. This moment echoes Lewis's earlier vision in Scene One, where he describes trees growing for centuries, their bodies eventually returning to the soil, and mushrooms marking where they lived. That vision links love to the slow, patient cycles of nature—growth, decay, and renewal. The oaks at the wedding thus symbolize love as something rooted, enduring, and part of a larger ecological whole. They also connect to the theme of nature as witness and consolation, as the trees observe and bless the union without needing human approval.

The Treehouse Blueprints: Creative Expression and Anticipation

Lewis's treehouse blueprints appear as a recurring motif after his death. In chapter 42, Wren finds treehouse drawings all over the house as she sorts through his belongings. These drawings are more than architectural plans; they are artifacts of Lewis's imaginative life. They show that he was thinking about a future family, designing a space for a child who did not yet exist. When Joy, at age five, begs to build a treehouse, Wren is flooded with a memory of Lewis drawing blueprints in the same chair where Joy now sits. The blueprints thus become a bridge between Lewis's creative vision and Joy's present desire. They represent his love as something that anticipated her, even before she was born. The drawings also serve as objects of grief: Wren initially avoids them, but they eventually become a way to keep Lewis's creative spirit alive in the household.

The Built Treehouse: Legacy for Joy

The treehouse is eventually built to Lewis's specifications, as Wren recalls in chapter 58 when she thinks of a treehouse built to Lewis's design alongside other memories of Joy. The context tells us that Lewis designed it for a Shumard oak, a specific tree that becomes the foundation for the structure. This built structure transforms the symbol from an imagined plan into a tangible reality. For Joy, the treehouse is a place to climb, play, and connect with the outdoors—activities that echo her father's own love of nature and his boyhood imagination. The treehouse also becomes a site of inheritance: Joy contains each of her parents' best qualities, including Lewis's ability to wonder and dream (chapter 55). By building the treehouse, Wren ensures that Lewis's love is not just remembered but actively experienced by his daughter. The treehouse stands as a physical legacy, a place where Joy can feel her father's presence even though he is gone. It also connects to the theme of generational inheritance and the ethics of legacy, as Lewis's creative vision is passed down to Joy in a form she can inhabit.

Meaning Changes Across the Narrative

The symbol's meaning evolves as the story progresses. At the wedding, the live oaks represent love as a natural, communal event—trees as best men, witnesses to a promise. In Scene One, Lewis's vision of trees growing for centuries and bodies returning to soil suggests love as part of a larger cycle of life and death. After Lewis's death, the treehouse drawings become objects of grief, reminders of what was lost and what will never be built. But when the treehouse is actually built for Joy, the symbol shifts again: it becomes a testament to love that persists through physical change and loss. The treehouse is a constructed thing, made from a living tree, just as love is reshaped into legacy after death. This aligns with the novel's themes of transformation as both loss and becoming and love that persists through physical change. The treehouse also embodies grief as a continuing relationship, as Wren and Joy maintain a connection to Lewis through this structure. The natural world itself acts as witness and consolation, from the oaks at the wedding to the treehouse that becomes a home for Joy's imagination.

Study Questions and Answers

1. How do the live oaks at the wedding function as symbols of Lewis's love?

The four live oaks serve as Lewis's best men, standing in for the human friends he might have had. They are the trees of his boyhood imagination, linking his love for Wren to his lifelong connection to nature. The oaks also echo Lewis's earlier vision of trees growing for centuries, suggesting that his love is meant to endure beyond a single lifetime. By making trees the witnesses to his vows, Lewis frames his marriage as part of the natural world's slow, patient cycles.

2. What does the treehouse blueprint represent for Wren after Lewis's death?

After Lewis dies, Wren finds treehouse drawings scattered throughout the house. These blueprints are painful reminders of Lewis's creative presence and his plans for a future that included a child. They represent the love that was cut short, but also the imaginative life that defined Lewis. When Joy later asks to build a treehouse, the blueprints become a way for Wren to connect her daughter to her father's vision, transforming grief into an opportunity for legacy.

3. How does the built treehouse for Joy transform the symbol's meaning?

The built treehouse moves the symbol from imagination to reality. It is no longer just a drawing or a dream; it is a physical place where Joy can play and grow. The treehouse becomes a tangible expression of Lewis's love, built to his specifications and thus carrying his presence into Joy's daily life. It transforms the symbol from one of loss to one of ongoing relationship, showing that love can be made manifest even after death.

4. In what ways do trees and the treehouse connect to the theme of transformation as both loss and becoming?

Trees undergo seasonal change, shedding leaves and growing new ones, mirroring the characters' own transformations—Lewis's physical change into a shark, Wren's evolution as a mother, Joy's growth into a curious child. The treehouse itself is a transformation of a living tree into a constructed structure, symbolizing how love can be reshaped into legacy after loss. The treehouse is built from a tree, just as Lewis's love is built into Joy's life. This dual process of loss (the tree's original form) and becoming (the treehouse's new purpose) reflects the novel's central theme that transformation involves both sacrifice and creation.