Prince Draven Vos is the novel’s second central figure and Rune’s primary romantic counterpart. He is introduced as an arrogant and enigmatic immortal prince, the heir to the druid throne who oversees the Selection with a cold detachment. His initial interactions with Rune are marked by teasing and condescension, earning him her immediate scorn. He appears to be the embodiment of the entitled power she despises, a “prick” (12) who finds her amusing. However, his actions reveal a more complicated character early in the narrative. He subtly guides his younger brother Ansel through the ritual of the Selection and prevents Rune from falling when she crosses into immortal territory. This duality defines his character: a public mask of cold authority that conceals a strategic mind and more private motivations. His true motivations are gradually revealed to extend beyond personal advantage; he seeks both to escape a political betrothal and to dismantle the oppressive system his father upholds.

Behind his princely authority lies a character shaped by trauma and political ambition. The revelation that he too was Selected as a child, the son of the mortal rebel leader Kieran Ceres, reframes his entire character. He was “adopted…as a weapon” (124) by King Silas, a tool to be honed and used for the kingdom’s benefit. This experience has instilled in him a profound hatred for the Selection and a desire to create a world where mortals and immortals can coexist without coercion. His ambition is not for personal power but for systemic change. He plans to find the Arcadian Artifacts to “…taking the throne. All of them” (177) and forge a new, peaceful Arcadia. This goal gradually transforms his relationship with Rune from antagonism into partnership. His use of their “fated” status functions as a calculated political maneuver, demonstrating the theme of Intimacy as a Tool for Survival and Power by turning a public declaration meant to resolve a court crisis into the basis of a strategic alliance with Rune.

As a mentor, Draven is the one who introduces Rune to her magical potential and teaches her to control it. His ability with the World Arcana, which he shares with Rune, makes him uniquely qualified to guide her Despite this mentorship, their partnership develops on relatively equal terms. He respects her strength and resilience, seeing her as an ally. He is fiercely protective, a trait that escalates from subtle assistance to openly defying the seraph king to save her life. His moments of vulnerability, such as admitting his fear of being abandoned and his desire “to be loved” (389), reveal the personal cost of the role he has been forced to play. His relationship with Rune ultimately encourages him to trust another person and take greater political risks. By the end of the narrative, Draven emerges as a ruler-in-waiting who seeks to reshape the political order of Arcadia rather than simply inherit it.

King Silas Vos is the formidable ruler of the druid kingdom of Sedah and a primary antagonist who represents the entrenched power structure that Rune and Draven seek to overthrow. His initial presentation is one of absolute and intimidating authority. During the Selection, his voice is described as “deep and hoarse like a shovel scraped over a shallow grave” (11), and his magic forces thousands to their knees. He is the architect of the Oath that binds the Selected to his will, a clear representation of The Illusion of Choice Under Authoritarian Rule. He sees the changelings not as individuals but as assets for his kingdom, bluntly telling them, “…though I would not have chosen some of you” (23) and expressing a cold pragmatism about their purpose.

Silas’s motivations are rooted in the survival and dominance of his kingdom. He adopted a young Draven because the boy’s rare magical potential could be used to strengthen the crown, calling him a “weapon” (124). This act highlights his calculating nature; he is a strategist who prioritizes power and security above all else. His relationship with Draven is strained and complex. He pushes Draven to be perfect, yet simultaneously mistrusts him, planting spies to monitor his own heir. This paranoia stems from the pressure of ruling a kingdom weakened by the Curse and threatened by the belligerent seraphs. While he stands against King Altair’s desire to annihilate mortals, his position reflects political calculation, as mortals are necessary for the continuation of the immortal races. His actions are always in service to his throne, making him a ruler whose authority rests on control, surveillance, and strategic pragmatism.

Kasper is a significant minor antagonist who initially serves as a foil to Rune. He appears at the Selection as another resentful mortal who, like Rune, seems to be running toward danger rather than away from it. His cynical demeanor and suspicion of authority mirror Rune’s own, creating an initial sense of kinship between them. However, his motivations are initially concealed. He is revealed to be the “bastard son of the seraph king” (437), sent to the Forge as a spy for his father, King Altair. This revelation clarifies his divided loyalties and the political role he plays within the seraph court.

His role in the narrative is to represent a different response to oppression and revenge. While Rune’s quest evolves from personal revenge to a desire for systemic justice, Kasper’s arc moves toward greater allegiance to the seraph regime. He ultimately chooses loyalty to the cruel father who abandoned him, embracing the seraphs’ ideology of mortal annihilation despite his own mortal origins. His disdain for Draven and his eventual betrayal are driven by a desperate need for his father’s approval. His attack on Draven is not just a political act but a personal one, fueled by jealousy and a lifetime of feeling powerless. Kasper’s final moments, where he declares himself “more than a mere mortal” (438), highlight the central tension in his character: a young man who betrays his own people in an attempt to gain the acceptance of his father and the status associated with the seraph court.

King Altair of the Seraphs is the story’s primary antagonist, embodying the most extreme and hostile elements of immortal society. He is driven by a single goal, unwavering goal: to find a cure for the Curse so he can “annihilate the mortals in vengeance” (123) for the death of his first wife during the Great War. His worldview is one of absolute supremacy, viewing mortals and changelings as inferior beings to be used or eradicated. This is demonstrated when he refers to Rune as an “abomination” (164) and a “rebel scab” (342), showing his deep-seated prejudice.

As a ruler, Altair is tyrannical and ruthless. He uses fear and intimidation as his primary tools of power, exemplified by his use of the halo to interrogate and nearly execute Rune. His interactions rarely involve diplomacy and instead rely on commands and threats. He represents the greatest external threat to Sedah and the fragile peace of Arcadia. His pursuit of Rune’s mother, the creator of the Curse, is relentless, as he believes she is the key to reclaiming the immortals’ ability to procreate and thus rendering mortals obsolete. His actions intensify the conflict between the immortal kingdoms, pushing them toward a new war and forcing Draven and Rune to accelerate their own plans.

Morgan is a minor antagonist who reveals tensions within the changeling community. Introduced at the Selection with his lava-cursed hair, he initially appears to be a potential ally for Rune. However, his connection to the Ten Spires Clan and the rebel group known as the Ascension reveals his true intentions. His motivations are straightforward: He seeks power and revenge against the immortals who oppress him. He sees the magic granted by the Selection as a weapon against his captors rather than a chance for a new life. His attempt to assault Rune reveals his willingness to treat others as expendable, reflecting his belief that people are merely “tools” (296) for his cause. He represents a faction of the mortal rebellion that is as ruthless and manipulative as the immortal rulers they oppose, showing that the cycle of violence and exploitation extends across both sides of the conflict.

Ember is a supporting character who becomes Rune’s first genuine friend at the Forge. Her primary role is to provide emotional support and a sense of stability for Rune in the hostile environment of the druid academy. Her friendly and open nature contrasts sharply with Rune’s guarded and suspicious demeanor. Upon meeting, Ember immediately begins to break through Rune’s walls, offering camaraderie and sharing information she learns from her “chatty” (68) Hearthmates. She demonstrates how trust and companionship can form even within a competitive and dangerous setting. Her loyalty to Rune remains firm; she stands by her even after learning of her past as a Wraith and defends her against Kasper’s accusations. Ember’s relationship with Felix and her complicated feelings for Kasper introduce personal tensions that run alongside the larger political conflicts, reminding the reader of the personal lives affected by the struggle between mortal and immortal powers.

Riordan Ryker, Rune’s father, is a significant character whose presence, both in memory and in person, deeply influences the protagonist’s journey. Initially, he exists as a symbol of Rune’s loss and a core motivator for her quest for revenge. The bone fishhook pendant she wears is a constant reminder of him. His reappearance as Captain Riordan, a high-ranking officer in the seraph army, is a revelation that complicates Rune’s hatred of immortals. He is no longer just a victim but someone who has seemingly assimilated into the power structure that destroyed their family. This creates an internal conflict for Rune, forcing her to reconcile the loving father she remembers with the loyal soldier who serves her enemy. His final act is one of sacrifice; he attempts to protect Rune from King Altair, resulting in his death. This tragic end reinforces the novel’s themes of family loyalty and the costs of war, solidifying Rune’s resolve to dismantle the systems that led to his demise.