Rhiannon Matthias: A Character Analysis

Overview

Rhiannon Matthias enters Fourth Wing on Conscription Day as an unknown candidate and exits it as one of the few first-year cadets Violet Sorrengail trusts unconditionally. She is defined by a quiet competence that never demands the spotlight: she fights well, studies harder than she lets on, and builds the kind of steady friendship that the brutal Riders Quadrant is designed to destroy. By the time she manifests a rare summoning signet, Rhiannon has already proven that her real strength lies not in a single dramatic power but in the accumulated choices that keep her squadmates alive.

Rhiannon’s narrative function is deceptively simple—she is the loyal best friend—but Rebecca Yarros layers that archetype with a backstory rooted in border-country pragmatism and a personal agenda that surfaces when the squad visits Montserrat. She is not a sidekick who exists only to prop up the protagonist; she has her own desires, fears, and a family she is willing to risk punishment to see.

Plot Role and First Appearance

Rhiannon appears in the very first chapter, meeting Violet at the base of the parapet tower. In a story where candidates are conditioned to view one another as competitors, her first act is generosity: she trades boots with Violet so that Violet’s smoother-soled pair will give Rhiannon better grip on the rain-slicked stones. The exchange is pragmatic, not sentimental—Rhiannon sizes up the situation and makes a calculated decision that incidentally saves Violet’s life. That blend of self-interest and genuine goodwill becomes her signature.

After surviving the parapet, Rhiannon is assigned to Second Squad, Flame Section, Second Wing alongside Violet. When Commandant Panchek restructures the wings and Xaden Riorson maneuvers Dain Aetos’s squad into Fourth Wing, Rhiannon stays by Violet’s side without protest or grandstanding. She simply remains present, observant, and ready.

Motivations and Core Traits

Rhiannon’s motivations are grounded in survival and family. She grew up in a village on the Cygnisen border, a region exposed to gryphon raids and frontier violence, and her combat skills reflect that upbringing. She tells Violet, “My village is on the Cygnisen border, so we all learned to defend ourselves fairly young.” The statement is matter-of-fact, but it reveals a lifetime of preparation that many cadets from more sheltered provinces lack.

Her secondary motivation—one that simmers beneath the surface until the squad’s tour of Montserrat—is her bond with her family. Rhiannon’s village is less than an hour’s walk from the outpost, and a newborn nephew is waiting there. The discovery transforms her from a composed cadet into a woman trembling with nervous energy. Violet notes “so much emotion swirling in their dark-brown depths that my throat clogs.” Rhiannon is not simply homesick; she is calculating the risk of going AWOL and trusting Violet to help her do it. That vulnerability, offered without manipulation, cements the reciprocity at the heart of their friendship.

Three traits define Rhiannon’s actions throughout the novel:

Pragmatic generosity. The boot swap on Conscription Day is her first contribution, but not her last. After Violet is dislocated and broken by Imogen during combat assessment, Rhiannon immediately proposes a trade: she and Sawyer will tutor Violet in hand-to-hand combat if Violet helps them with history. The offer is strategic—Rhiannon knows her own academic weaknesses—but it also protects a squadmate who would otherwise be eliminated. She frames mutual aid as a transaction, which in the zero-sum culture of the quadrant makes it harder to refuse.

Combat competence. During the same assessment chapter, Rhiannon dismantles Tynan with a speed and precision that catches the instructors’ attention. She dodges punches, lands her own, and when Tynan hooks her legs and slams her to her back, she rolls, regains her feet, and puts him in the same position again—this time with her boot on his throat. Dain remarks that she is “handing you your ass,” and Tynan’s bruised ego is a testament to her skill. Rhiannon never brags about her fighting ability; she simply demonstrates it, then offers her hand to help her opponent up. That sportsmanship distinguishes her from bullies like Jack Barlowe and makes her a quietly respected figure in the squad.

Relentless loyalty. Rhiannon keeps Violet’s secrets. When Violet confesses that Mira sewed Teine-scale armor into her vest, she tells Rhiannon and no one else. When Violet is spiraling after killing Jack with her lightning signet, it is Rhiannon—along with Xaden and Dain—who is present in the aftermath. The loyalty is not blind; Rhiannon questions things, as when she mutters about Dain’s feigned indifference early on. But once she commits, she does not waver.

Chronological Arc

Rhiannon’s journey through Fourth Wing can be tracked across four key phases:

Conscription and early survival (Chapters 1–5). She meets Violet, survives the parapet, and navigates the first days of formation. Her alliance with Violet and Sawyer forms out of necessity but quickly deepens. By the end of the first combat assessment, the trio is bound by a formal agreement to trade knowledge.

Threshing and its aftermath (Chapters 13–17). Rhiannon is one of only four first-years from Second Squad to bond a dragon and survive Threshing. The novel does not dramatize her bonding moment—the focus stays on Violet’s double bond with Tairn and Andarna—but her survival is itself a statement. In a squad decimated by death, Rhiannon endures. After Threshing, she adapts to the new hierarchy, watching as cadets clear tables for Violet and as Violet’s bond with Tairn reshapes every social dynamic.

Signet revelation and squad leadership (Chapters 23–25). Rhiannon reveals to Violet that she can summon objects, a rare signet. The disclosure is intimate, shared in the context of Violet confessing her own romantic confusion over Xaden. Rhiannon’s power is not flashy compared to Violet’s lightning or Xaden’s shadow-wielding, but summoning is tactically invaluable. It also underscores a theme of the novel: that signets reflect the rider’s core nature. Rhiannon, who has spent the year drawing allies close and bridging gaps between squadmates, manifests the ability to bring things to her.

Montserrat and family (Chapter 26). The tour of the eastern outpost gives Rhiannon her most personal subplot. She is visibly distracted, her usual composure fraying as the proximity to her village becomes unbearable. Violet promises, “We have six days to figure it out and we will.” The plan to sneak out, supported by Mira, succeeds, and Rhiannon meets her newborn nephew. The scene is a rare moment of warmth in a novel otherwise saturated with death, and it deepens the reader’s understanding of what Rhiannon is fighting for.

Relationships

Violet Sorrengail. The friendship between Rhiannon and Violet is the novel’s most stable emotional anchor. Where Violet’s relationship with Dain deteriorates under the weight of his overprotectiveness, and her bond with Xaden oscillates between attraction and mistrust, Rhiannon provides consistency. She does not try to control Violet’s choices; she supports them and occasionally questions them. The Montserrat episode exemplifies this: Rhiannon asks for help breaking the rules, and Violet gives it, knowing the risk. The reciprocity is earned, not assumed.

Sawyer and the squad. Rhiannon’s alliance with Sawyer begins as a study group and evolves into a functional team. Sawyer is a repeat cadet with practical knowledge, Rhiannon is the combat expert, and Violet is the academic powerhouse. Together they form a micro-community that insulates them from the quadrant’s worst predation. Rhiannon is the glue of this group—not its leader, but its facilitator.

Her family. Though Rhiannon’s family appears only briefly in the Montserrat sequence, their importance to her is unmistakable. The newborn nephew represents continuity, a future beyond the quadrant’s death rolls. Rhiannon’s willingness to risk punishment to see him reveals that her identity as a sister and aunt predates and outweighs her identity as a cadet. This grounding in family love sets her apart from many of her peers, whose motivations are more abstract or vengeful.

Key Decisions and Consequences

Three decisions define Rhiannon’s arc:

Trading boots on Conscription Day. This small, practical choice saves Violet’s life on the parapet. Without the extra grip, Violet—already physically fragile—would likely have slipped and fallen like Dylan. The decision also establishes the foundation of trust between the two women.

Proposing the study-combat alliance. By offering to train Violet, Rhiannon takes an active role in keeping her alive. The consequences ripple outward: Violet survives early challenges (partly through poison, partly through growing competence), and the squad’s knowledge-sharing model becomes a quiet form of resistance against the quadrant’s “survival of the fittest” ethos.

Trusting Violet with her family secret. At Montserrat, Rhiannon could have tried to visit her village alone. Instead, she confides in Violet, who reciprocates by planning the visit and securing Mira’s reluctant cooperation. The decision reinforces their bond and gives Rhiannon a rare moment of joy in an otherwise punishing year.

Themes and Symbolic Connections

Rhiannon embodies several of the novel’s central themes:

Survival through solidarity. Fourth Wing repeatedly pits its characters against a system that rewards ruthlessness. Rhiannon’s alliance with Violet and Sawyer is a counter-narrative: survival achieved not through solitary strength but through mutual support. The novel never frames this as weakness; Rhiannon is demonstrably lethal on the mat, and her willingness to help others does not diminish her.

The hidden costs of war. Rhiannon’s border-country origins tie her to the ongoing conflict with Poromiel in a way that sheltered cadets like Dain cannot fully grasp. She has grown up knowing that wards can falter and villages can burn. This knowledge informs her pragmatism and her lack of interest in the quadrant’s political games.

Identity beyond the quadrant. Rhiannon’s visit to her village reminds both her and the reader that the Riders Quadrant is not the whole world. She is a daughter, a sister, an aunt—roles the death factory of Basgiath cannot erase. Her summoning signet, which literally brings desired objects to her, may be a symbolic extension of this: she pulls what matters close.

Five Key Questions About Rhiannon

1. What signet does Rhiannon manifest?

Rhiannon reveals in Chapter 23 that she can summon objects. She tells Violet this in the context of a private conversation, framing it as a rare ability. The signet is consistent with her personality: rather than destructive powers like lightning or shadow, Rhiannon’s gift is one of retrieval and utility—she brings things to herself, just as she has drawn allies close all year.

2. How does Rhiannon first help Violet?

On Conscription Day, before either woman has crossed the parapet, Rhiannon trades boots with Violet. Violet’s boots have thinner soles, which give Rhiannon a better grip on the rain-slicked stones. This exchange, though mutually beneficial, is Rhiannon’s idea and arguably saves Violet’s life by improving her traction on the deadly bridge.

3. Why is Rhiannon so skilled at hand-to-hand combat?

She grew up in a village on the Cygnisen border, a region vulnerable to gryphon attacks and general frontier instability. As she explains to Violet in Chapter 5, everyone in her community learned to defend themselves from a young age. This practical, survival-driven training gives her an edge over cadets who trained in formal academies but lack real-world experience.

4. What personal goal does Rhiannon pursue at Montserrat?

During the squad’s prize tour of the eastern outpost, Rhiannon realizes her home village is less than an hour’s walk away. She desperately wants to visit her family, specifically to meet her newborn nephew. Violet helps her plan the visit, and Mira reluctantly accompanies them. The reunion is brief but emotionally significant, grounding Rhiannon’s motivations in familial love rather than abstract duty.

5. What role does Rhiannon play in Violet’s survival during the first year?

Rhiannon is Violet’s most consistent ally. She provides combat training in exchange for history tutoring, keeps Violet’s secrets—including the scaled armor from Mira—and offers emotional support through every crisis, from the aftermath of Threshing to Violet’s guilt over killing Jack Barlowe. While Xaden eventually becomes Violet’s protector and romantic partner, Rhiannon is her friend first, and that friendship is the stable foundation that allows Violet to endure the quadrant’s psychological toll.

Conclusion

Rhiannon Matthias is the character Fourth Wing needs to balance its high-stakes romance and political intrigue. She is not a love interest, not a rival, and not a villain—she is simply a person doing her best in an institution that punishes kindness. Her combat skill makes her credible; her loyalty makes her indispensable. By the time the novel ends and Violet is pulled into Xaden’s secret rebellion, Rhiannon remains one of the few people Violet can call a true friend. In a story about dragon bonds and signet powers, Rhiannon’s greatest contribution may be the most human one: she shows up, again and again, and refuses to let her friends fall.