Prophecy and the Tension Between Fate and Free Will in Once Upon a Broken Heart
The Thematic Claim: Prophecy as a Lock, Not a Sentence
Once Upon a Broken Heart builds its central conflict around a prophecy that behaves less like a mystical prediction and more like a mechanical lock. The Valory Arch can only be opened when each line of its prophecy is fulfilled, which means the prophecy does not simply foretell the future—it actively shapes it by giving characters a target to pursue or resist. The novel's thematic claim is that fate and free will are not opposites but entangled forces: prophecy constrains the range of possible choices, yet characters still choose how to respond within those constraints. Evangeline was taught by her mother that every story has the potential for infinite endings, but the novel repeatedly tests that belief against a prophecy that seems to narrow her options to one.
The Prophecy as a Mechanical Lock
Prince Apollo explains to Evangeline that the lines of a prophecy work like the ridges and notches of a key. A diviner strings together prophetic lines, carves them into an arch, and the arch remains locked until each line is fulfilled. This is a crucial detail: the prophecy is not a warning or a curse but a security mechanism. It was designed to keep something sealed—whether a terrible abomination or the Valors' greatest treasures depends on which version of the cursed tale one believes. What matters for the theme is that the prophecy functions as a constraint on reality: certain conditions must be met before the arch can open.
This mechanical framing changes the nature of fate. A traditional prophecy might be unavoidable regardless of what anyone does. But a prophecy-as-lock requires active fulfillment. Someone must become the rose-gold girl. Someone must be both peasant and princess. The prophecy does not make these things happen on its own; it creates a structure in which characters are incentivized to make them happen. Jacks, who desperately wants the arch opened, becomes the prophecy's enforcer, arranging circumstances so that Evangeline will fulfill its lines.
The Bell That Warns and the Girl Who Misreads
The novel opens with a small but telling scene at Maximilian's Curiosities, Whimsies & Other Oddities. A bell outside the shop detects the approach of a young man and recognizes him as trouble, ringing its clapper to warn the shopgirl inside. The shopgirl, who grew up around oddities and understands that objects possess a sixth sense, hears the chime. But because she believes in hope, fairytales, and love at first sight, she misinterprets the bell's warning as a serendipitous sign rather than a caution.
This opening scene establishes the novel's central interpretive problem: signs and warnings are only as useful as the beliefs through which they are filtered. The shopgirl's faith in fairytales causes her to read a warning as an invitation. The same dynamic recurs throughout the novel on a larger scale. Evangeline is repeatedly presented with evidence that she is the girl from the prophecy, and she must decide whether that evidence is a warning to be heeded or a story to be rewritten. The bell's misread warning foreshadows the way prophecy itself can be misread—as destiny when it might be manipulation, or as manipulation when it might be destiny.
Evangeline's Belief in Infinite Endings
Evangeline's mother taught her that every story has the potential for infinite endings. This belief is the foundation of her worldview and her resistance to the prophecy. When Jacks tells her she has no choice but to marry Apollo, Evangeline reflects that she rarely believes there is only one option. She clings to the idea that her future is determined by her choices, not her destiny.
Yet the novel complicates this belief. Evangeline's mother, we learn, was the sort of person who would have believed in prophecies and would have investigated them in secret—which is exactly what Evangeline does. The inheritance is double-edged: Evangeline inherits her mother's faith in infinite endings, but she also inherits her mother's instinct to take prophecy seriously. The novel suggests that believing in infinite endings does not mean ignoring the constraints of fate; it means finding agency within them.
Jacks as the Architect of Fate
Jacks is the novel's most direct agent of fate. He arranges for Evangeline to marry Apollo, not out of care for either of them, but because the marriage will make her the peasant and princess of the prophecy. When the Fortuna matriarch chants the prophecy and recognizes Evangeline as the one who will open the Valory Arch, Jacks dismisses the prophecy as dusty while simultaneously maneuvering to fulfill it. His manipulation is the mechanism through which the prophecy operates.
But Jacks is not a pure force of destiny. He is himself constrained by the prophecy—he needs Evangeline alive and married to Apollo, which means he must protect her even as he uses her. When Evangeline is poisoned, Jacks saves her life, but she recognizes that he did so only because he needs her alive for the prophecy. The novel thus presents even the most powerful characters as bound by the same prophetic structure they seek to exploit. Jacks's hope when he sees the Fortunas' arch—described as something that looks a lot like hope—suggests that he, too, is chasing a future he believes is written.
The Wedding: Choice or Compliance?
The decision to marry Apollo is the novel's central test of free will. Evangeline knows the prophecy. She knows that marrying Apollo will make her a princess, fulfilling the line about being both peasant and princess. She fears that the marriage will set off a chain of events that opens the Valory Arch and releases something horrific. Yet she chooses to marry him anyway, because it is the only way she knows to break the spell on Apollo.
This is the novel's most complex treatment of the fate–free will tension. Evangeline's choice is genuinely hers—she is not forced into the marriage. But her choice is also shaped by the prophecy's existence. She cannot ignore the prophecy, and her decision to act despite it is both an act of free will and a step toward fulfilling it. The novel refuses to resolve this ambiguity. Evangeline tells herself she must do the best with what is known, and what is known is that marrying Apollo is the only way to save him. Whether that makes her a pawn of fate or an agent of her own compassion is left open.
The Poisoning and the Turn Toward Agency
The poisoning of Apollo and the revelation that he is alive mark a turning point in Evangeline's relationship to the prophecy. When she learns that Apollo was poisoned but not killed, and that Jacks may have used his bitter blood to manipulate her, she resolves to cure Apollo herself and stop Jacks. This is the moment when Evangeline stops trying to interpret the prophecy and starts trying to act against it.
Tiberius's confession complicates the picture further. He reveals that he intended to kill Evangeline but the poison affected males instead—a detail that suggests the prophecy may be protecting her, or that fate is actively intervening to keep her alive for its purposes. The novel leaves this ambiguous. Evangeline's resolve to act is genuine, but the circumstances that enable her action—Apollo's survival, Tiberius's confession, the discovery of the hidden room—all seem to align with the prophecy's needs.
The Awakening Door: Fate's Persistence
The brief chapter in which a long-sealed door in Wolf Hall begins to stir, its carved wolf's head smiling, serves as a reminder that forces beyond Evangeline's control are moving. The door has not been opened for centuries, yet it awakens at precisely the moment when Evangeline is making her most determined stand against the prophecy. The smiling wolf's head suggests that whatever is behind the door is pleased, or at least aware, of the direction events are taking. The novel uses this image to suggest that fate is not passive—it is actively responding to the characters' choices, perhaps even guiding them.
Complexity and Contradiction
The novel's treatment of fate and free will is deliberately contradictory. On one hand, the prophecy is presented as a mechanical lock that requires specific conditions to be met—a deterministic structure. On the other hand, Evangeline's belief in infinite endings is presented as a genuine source of hope and agency. The novel does not resolve this tension; it dramatizes it.
The two versions of the Valory Arch story—prison or treasure chest—add another layer of uncertainty. If the arch holds a terrible abomination, then fulfilling the prophecy is a catastrophe. If it holds the Valors' treasures, then fulfilling the prophecy might be a liberation. Evangeline never learns which version is true, and neither does the reader. The prophecy's meaning is as uncertain as its outcome.
The broken heart scars on Evangeline's wrist, left by Jacks's bite, function as a physical reminder of the deal she made—a deal that set her on the path toward the prophecy. The scars are both a mark of her choice (she agreed to the deal) and a mark of fate (she was the girl the prophecy needed). The doors and arches throughout the novel similarly blur the line between choice and destiny: Evangeline chooses to walk through the church door, but the door deposits her where the prophecy needs her to be. Even the apple Jacks eats in the church carries the weight of temptation and knowledge—an echo of the choices that lead her deeper into the prophecy's design.
Study Questions
1. How does the novel's depiction of prophecy as a mechanical lock differ from traditional prophecy narratives?
The prophecy is not a prediction that comes true regardless of human action; it is a lock that requires specific conditions to be fulfilled. Each line of the prophecy must be satisfied before the arch can open, which means the prophecy creates incentives for characters like Jacks to manipulate events. This reframes fate as a structure that constrains choice rather than a force that overrides it.
2. Why does Evangeline choose to marry Apollo despite knowing she may be fulfilling the prophecy?
Evangeline's decision is driven by compassion: marrying Apollo is the only way she knows to break the spell on him. She weighs the uncertain danger of the prophecy against the certain suffering of Apollo under the curse. Her choice reflects the novel's claim that free will operates within constraints—she cannot ignore the prophecy, but she can decide how to respond to it.
3. How does Jacks function as both an agent of fate and a character bound by it?
Jacks arranges circumstances to fulfill the prophecy—he pushes Evangeline toward Apollo, protects her when she is poisoned, and manipulates events to keep her on the path. But he is also dependent on the prophecy's conditions being met; he cannot simply force the arch open. His hope when he sees the Fortunas' arch suggests he is as invested in the prophecy's fulfillment as anyone.
4. What role does the opening scene with the bell play in establishing the theme?
The bell warns the shopgirl about the approaching young man, but she misreads the warning as a positive sign because of her belief in fairytales. This establishes the novel's central interpretive problem: signs and warnings are filtered through belief, and the same signal can be read as destiny or as caution. The scene foreshadows Evangeline's own struggles to interpret the prophecy.
5. How does the novel leave the fate–free will tension unresolved?
The novel presents both possibilities without choosing between them. Evangeline's choices are genuinely hers, yet they consistently align with the prophecy's requirements. The two competing versions of the Valory Arch story mean the prophecy's purpose is unknown. The awakening door at the end suggests fate is still moving, but whether it is moving because of or despite Evangeline's choices is left open.