These chapters heighten the psychological tension around The Instability of Artificial Identities by showing how both Eden and Birdy lose control over the most basic aspects of their lives: their physical identity, their sense of reality, and their perception of time. Eden breaks into Spyglass in the hope that physical objects, such as her passport, photographs, and clothing, will confirm her identity. Her fruitless and increasingly desperate search for such evidence reveals the degree to which identity is constructed out of social signifiers that turn out to be flimsy and unreliable. When the items don’t exist, she feels as though her identity has been erased. Even her body feels unfamiliar when she realizes her jeans no longer fit, reinforcing the idea that identity can change or disappear without warning. Eden’s unfamiliar reflection in the mirror indicates her recognition that selfhood depends on how others see her, particularly within marriage and family. When that recognition vanishes, she is left with no proof of herself.

The story of Gabriella’s accident adds a tragic layer to Eden’s narrative, particularly in her role as a caregiver. Eden carries deep guilt for her part in the accident. Her inability to care for Gabriella’s complex needs afterward intensifies the burden, forcing her to place Gabriella in a long-term care facility. Eden says, “This is all too much, she is too much—she always was—and I can’t take any more” (99). Gabriella’s accident symbolizes the moment when Eden’s life fractures and never fully recovers. In the version of the story available to the reader at this point in the novel, the accident occurs because Eden prioritizes intimacy with Harrison over supervising Gabriella; on a symbolic level, it is the price Eden pays for her attempt to hold onto a version of herself as a desirable woman at the expense of her role as a caregiver. This narrative aligns with longstanding narrative tropes in which women are punished for straying from expected roles. Gabriella’s accident is framed as Eden’s punishment for vanity, for sexual desire, and for shirking her duty as a mother. When the final plot twists reveal that the reality was far more sinister, and that the accident was not an accident at all, this traditional framing is called into question. At this early point in the novel, however, the “accident” is presented as an explanation for Eden’s fragile sense of self in the present. Gabriella’s injury makes Eden feel inadequate and powerless. Her inability to care for Gabriella afterward forces her to relinquish control. This appears to explain Eden’s subsequent devastation when Gabriella rejects her verbally, completing a process that began years earlier, though again, this incident turns out to have a very different significance, as Gabriella’s pronouncement—"She. Is. Not. My. Mother” (88)—is literally rather than figuratively true.

The identity erasure continues through Gaslighting and the Manufacturing of Reality. Eden repeatedly encounters authority figures who fail to confirm her truth. Sergeant Carter views her as a criminal, but at The Manor, a nurse grants her access to Gabriella without requiring identification, as systems designed to verify truth are unreliable and inconsistent. Gabriella’s uncannily accurate paintings of Spyglass are especially disturbing. However, Gabriella’s flat denial of Eden as her mother becomes the final erasure of Eden’s identity. By the time Eden becomes a stranger at Spyglass, she has been losing herself for years, long before the imposter ever appears. Eden’s nightmarish day ends on a devastating note. The anonymous phone call and text message manipulate shared memories and private language, creating a false sense of recognition that draws Eden to the cliffs. The message feels real because it uses the language of intimacy shared between her and Harrison, a shred of truth keeping her tethered to another reality that is gone.

Birdy’s chapters, by contrast, increasingly center on The Dangerous Illusion of Certainty. The story of her grandmother predicting her own death and dying alone unsettles Birdy because she is facing the same fate. Rather than offering wisdom or comfort, this knowledge isolates her. Olivia Bird died alone with no relations, revealing that knowing one’s death does not bring peace but loneliness. Birdy’s skepticism about these stories shows her resistance to accepting her own mortality, yet she is curious about the answers she could gain from Thanatos. The irresistible appeal of the Thanatos letter highlights the dangerous allure of the product Harrison is selling—though it has not yet been revealed that Harrison is involved with the company.

Birdy has never truly had a home, and her swallow tattoo reveals her desire to find home: “My mother taught me that swallows always find their way home, and I touch the swallow tattoo on my hand, as though doing so might turn back time” (69). Knowing that her time is limited leads Birdy to look backward rather than forward. Touching the tattoo is a small, instinctive attempt to regain control, as if memory or belief might undo all she has lost. As her future becomes short, the past becomes more powerful, even if it cannot be changed. Birdy’s visit to Thanatos deepens her curiosity about her grandmother’s past and what lies ahead. The invasive questions, fingerprints, and the doctor’s unsettling familiarity with her life reveal that knowing one’s end date, particularly with technology, comes at the cost of privacy and autonomy. When Birdy finally receives her “Deathday,” the shock she experiences confirms that even when a person believes they are prepared, the brutal truth remains destabilizing, reminding her that she has no control over her destiny.