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In Across the Vanishing Sky, Cowles explores the difficulty of forging an individual identity while burdened by a toxic family legacy, arguing that while a dark past creates significant hurdles, it cannot predetermine a person’s character or their capacity for good or evil deeds. Through the overlapping daily experiences of the Archer brothers, whose lives in Starlight Grove are constantly overshadowed by the town’s long memory of the serial murders that their father committed years ago, the novel demonstrates that moral identity is a matter of conscious choice. As Dex repeatedly grapples with the idea of inherited darkness, only his connection with Braedyn helps him to overcome the sense that he has been tainted by a hereditary evil.
The Archer brothers constantly fight against their father’s legacy, facing a doubled onslaught from their own internalized anxieties and the townspeople’s instinctive prejudices. The residents of Starlight Grove often view the brothers through the lens of their father’s crimes, as evidenced by the snide comments of Sheriff Miller, who maliciously taunts Dex about “what runs in your veins” (111). Other townspeople react with open fear at the very sight of them. This public judgment is compounded by the brothers’ private fears that they might somehow share their father’s capacity for brutality. Dex, in particular, is terrified of this possibility, believing that he harbors his father’s darkness inside him. After he physically assaults Braedyn’s abusive ex, he tells her, “I have [my father] in me, Brae” (335), and his private anguish suggests that shedding a dark legacy requires finding new connections that help to conquer the self-doubt planted by a monstrous lineage.
For their part, the Archer brothers understand the value of having a family member who acts out of unconditional love despite the dark legacy of their father’s crimes. In many ways, their great-uncle Waylon acts as a grounding force who provides them with a sanctuary and a new moral compass at Twisted Oak Ranch. Notably, when defending Braedyn from Sheriff Miller, Waylon defines true family as “showing up time and again” (233) for the people he cares about. With the entry of Braedyn and Owen into the Archer family circle, the novel posits that true family is built on loyalty and love. While the Archer brothers’ father was no true father to them due to his violence, Braedyn and her son become as close as family should be. By making the choice to entwine their lives with Dex and his brothers, they provide all the Archers with an important antidote to the poison of their father’s dark inheritance.
On an individual level, the brothers each seek to overcome their family legacy by actively repurposing its remnants for good. For example, although Dex first developed his hacking skills while trying to understand the minds of killers like his father and exploring the “dark places the internet hides” (174), he now uses his talents to create a vigilante network that solves missing persons cases. In this endeavor, he transforms a tool born of darkness into an instrument of justice. Collectively, the brothers have vowed to use their father’s remaining assets to fund this network, transforming his wealth into a force that seeks to make amends for his crimes. By consciously choosing to help others, they defy the expectation that they will follow their father’s destructive path, proving that their past does not have to define their future.
Throughout the novel, Cowles suggests that authentic healing requires facing the truth of painful or traumatic situations, resisting the urge to continue in a state of willful ignorance or passive acceptance. Braedyn’s relentless search for Nova embodies this theme, for she ignores everyone’s urging that she simply “move on” from the mystery with her questions unanswered, instead choosing to shoulder the immense emotional burden of a personal investigation. Her refusal to accept Sheriff Miller’s easy but false narrative ultimately leads her to a perilous but necessary resolution, and her efforts free both her and others from the torment of uncertainty that hovers like a miasma over the memory of Nova’s missing presence in her life.
From the very beginning, Braedyn proves herself to be an unconventional thinker and a strong-willed investigator as she firmly rejects Sheriff Miller’s half-hearted explanations and his attempts to shut down the investigation altogether. Her quest for answers is an all-consuming effort that reflects her intense history with Nova and her dedication as a friend. After Nova disappears, Sheriff Miller dismisses the case as a likely accident, but rather than letting the memory of her friend fade away, Braedyn uproots her own life to move to Starlight Grove and investigate the matter herself. Her efforts to train Yeti as a search dog reflect the depths of her dedication, as does her active participation in Compass. Braedyn’s persistence demonstrates her core belief in the defiant act of seeking truth at any cost, and she refuses to accept any premature and unsubstantiated conclusions for the sake of propriety or convenience.
Cowles describes the state of not knowing as a form of “purgatory,” a liminal space where grief cannot be fully processed or expressed. In addition to Braedyn’s anguish, which drives much of the external plot, Dex’s conflicted emotions also play a part in the narrative. His mother vanished without a trace well before his father’s status as a serial killer was discovered, and as a result, Dex explicitly identifies with this sense of being in purgatory. As he tells Braedyn, he understands being “stuck in the in-between. Not knowing whether to hope or to lay to rest” (320) the various questions about his past. Braedyn, trapped in this same state, resolves to find the answers she needs “no matter what” (212), and her decision highlights the idea that even a terrible certainty is preferable to the paralyzing pain of an unsolved mystery.
When the details of Nova’s disappearance finally come to light, the brutality of the truth nonetheless provides the closure that will allow Braedyn, Nova, and everyone involved to begin the hard work of healing from their long ordeal. With the revelation that Travis, a trusted Starlight Grove deputy, is himself a serial murderer whose escalating activities compelled him to hold Nova captive for a year, Braedyn is forced to reevaluate every trusting conversation she had with the man, finally seeing him for what he is. While she berates herself for failing to see the darkness lurking within him, this discovery ends the agonizing uncertainty that has haunted her, and the subsequent investigation into Travis’s activities also brings closure to other families whose loved ones he killed. The epilogue, set three months later, shows Braedyn building a future with Dex, a step that would have been impossible while she was still consumed by the purgatory of not knowing Nova’s fate or acting to save her friend’s life.
Across the Vanishing Sky offers a sharp critique of institutional justice, portraying official law enforcement policies as being deeply flawed and susceptible to negligence, personal bias, and outright corruption. Sheriff Miller’s egregious behavior throughout the novel is meant to illustrate that when formal systems of justice fail, citizen-led investigations can uncover the truth and hold those in power accountable. As Braedyn struggles to find her lost friend, the ineffectiveness of the Juniper County Sheriff’s Department obstructs the search for Nova and allows a predator to operate from within its own ranks, forcing the protagonists to seek justice outside the law.
The most significant institutional failure is embodied by Sheriff Ezra Miller, whose incompetence and blatant self-interest taint the department’s investigation from the start. Even in the immediate aftermath of Nova’s disappearance, Miller dismisses the case as an accident, and to Braedyn’s frustration, he prematurely declares the trail “cold,” and actively discourages her attempts to pursue other leads. Specifically, he denies a request for a K-9 unit, even though a search dog’s skills are critical tools in a fresh missing-persons case. Although he weakly justifies his decision by citing “insufficient evidence” (182), his motivations are later revealed to be entirely corrupt; he is being paid to protect an illegal marijuana operation within the forest and wants to suppress any investigation that might expose these activities. In the end, Miller’s demise at Travis’s hands reflects the author’s own condemnation of the moral corruption that both characters embody. While Miller himself is not an outright villain like his deputy, his actions demonstrate how personal greed and a desire to avoid work can lead an entire institution to fail in its fundamental duty to protect and serve.
The novel intensifies this ongoing critique with the discovery that Travis Moore exploits his position as a sheriff’s deputy to both commit murders and conceal them after the fact. As a serial killer in his own right, Travis strategically commits murders in areas that guarantee he will be involved in the resulting investigations, and he uses his access to law enforcement resources to manipulate the cases involving his own victims. The point is further illustrated as he derives a sadistic pleasure from this, telling Braedyn that watching the grieving families is a “total fucking high” (392) when he knows that he created and controls the entire situation. His ability to operate undetected for years highlights the ultimate institutional betrayal, for the protector has become the predator, repurposing the justice system itself to enable injustices to continue unchecked.
In the face of such comprehensive institutional failure, the narrative champions the power of outsiders and vigilante networks, as evidenced by the fact that Braedyn, Dex, and the other Archer brothers operate on the fringes of the law and ultimately solve the case. Initially, Braedyn’s own investigation drives the search forward when official channels have stalled, and Dex’s illegal hacking provides important evidence that the police have either missed or ignored. Likewise, the Archer brothers’ secret organization, the Hourglass Network, joins forces with Ridley Sawyer’s true-crime podcast, Sounds Like Serial, thereby bringing national attention to a case that would otherwise continue to be ignored. These factors all create pressure that the local sheriff’s department actively resists, and in this context, the citizen-led resolution—a direct confrontation in the woods rather than a formal arrest—cements the idea that when institutions are broken, justice must be seized by those who care enough to fight for it, even if doing so means breaking the rules.



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