Characters Chain of Thorns Cassandra Clare

Lucie Herondale: The Necromancer of the Herondale Line

Overview

Lucie Herondale, the younger sister of James Herondale, is a central figure in Chain of Thorns, the final book of Cassandra Clare’s The Last Hours trilogy. Unlike most Shadowhunters, Lucie possesses a rare necromantic power: she can see, command, and even raise the dead. This ability places her at the heart of the novel’s supernatural conflict and forces her to navigate difficult moral choices. Her arc moves from secret-keeping to courageous self-acceptance, culminating in a pivotal role in the defeat of the demon Belial.

Plot Role in Chain of Thorns

Lucie’s actions drive two major storylines: the resurrection of Jesse Blackthorn and the battle against Belial. At the beginning of the novel, she has already fled London with the warlock Malcolm Fade and Jesse’s corpse to perform forbidden necromancy. Her successful raising of Jesse sets off a chain of events that forces the Herondale family into confrontation with the demonic threat. Throughout the book, Lucie struggles to control her power while hiding it from all but a few trusted allies. In the climax, she unleashes her ability to force Chimera demons out of the bodies of Silent Brothers and Iron Sisters, turning the tide of the final battle. By the epilogue, her necromantic power has vanished, leaving her to face a future without the gift that defined her journey.

Motivations and Character Traits Shown Through Actions

Lucie is driven by love and a fierce desire to protect those she cares about. Her decision to raise Jesse stems not from ambition but from a refusal to let him remain trapped between life and death. She repeatedly risks her safety for others, from confronting Lilith at Cross Bones Graveyard to summoning the ghost of Rupert Blackthorn to call off Tatiana’s attack. Her loyalty is intense, but it can also lead her to secrecy—she conceals her friendship with Grace Blackthorn from Cordelia, believing it necessary to save Jesse. This secret causes a devastating rift with Cordelia, revealing Lucie’s fear of judgment and her tendency to isolate herself when she feels ashamed.

Lucie is also a writer and dreamer, as Cordelia points out during their argument: “You live in a world of stories.” This imaginative quality lets her envision possibilities others dismiss, but it also makes her vulnerable to accusations of naivety. Yet Lucie proves pragmatic in crisis, quickly devising plans and rallying ghosts to her cause. She shows resilience when faced with grief—such as Christopher’s death—and channels her pain into action rather than despair.

Chronological Arc

Lucie’s arc in Chain of Thorns follows a clear trajectory from concealment to revelation to sacrifice.

  • Prologue and Chapter 1: Lucie lies unconscious in Malcolm’s cottage after raising Jesse. She is the object of a rescue mission led by James, Will, and Magnus.
  • Chapter 4: She wakes in Cornwall, embraces Jesse, and later defends her actions when her family arrives. Will accepts Jesse after confirming he is truly alive.
  • Chapters 5–7: Lucie urges James to confess his love to Cordelia and agrees to the deception of calling Jesse “Jeremy Blackthorn.” She returns to London with her family.
  • Chapter 13: Tensions with Cordelia explode when Lucie’s secret friendship with Grace comes to light. Cordelia declares they will never be parabatai; Lucie returns to the Institute devastated.
  • Chapter 19: Malcolm warns Lucie that kissing Jesse may create a channel to Belial. She later uses a kiss to trigger a vision revealing Belial’s demonic gates.
  • Chapter 26: Lucie summons the ghost of Rupert Blackthorn to stop Tatiana’s attack. The spirit denounces Tatiana and protects the Institute, but Christopher Lightwood dies.
  • Chapter 29: Lucie and Cordelia go to Cross Bones Graveyard. Lucie commands the ghosts to form a pentagram, trapping Lilith so Cordelia can negotiate passage to Edom.
  • Chapter 35: In the final battle, Lucie contacts the spirits of Silent Brothers and Iron Sisters, compelling them to reclaim their bodies from Chimera demons. This breaks Belial’s army.
  • Epilogue: Months later, Malcolm Fade confronts Lucie, angry that her necromantic power has vanished. Lucie faces a mundane future but is surrounded by family and friends.

Relationships

  • Jesse Blackthorn: Lucie’s love for Jesse is the catalyst for her most dangerous act—raising him from the dead. Their relationship is tender but complicated by the visions that occur when they touch. Jesse initially offers to exile himself to protect her, but Lucie refuses to let him go. By the end, they are together, though her power is gone.
  • Cordelia Carstairs: Lucie and Cordelia share a deep bond that is severely tested. Lucie’s secrecy about Grace and Jesse drives a wedge between them, leading to a bitter confrontation in Chapter 13. They reconcile before the final battle, with Cordelia promising to always be by Lucie’s side.
  • James Herondale: Lucie is fiercely protective of her brother and often tries to mediate between him and Cordelia. She urges him to confess his feelings and later stands with him against Belial. Their sibling relationship provides emotional grounding for both.
  • Grace Blackthorn: Lucie befriends Grace because Grace controls the means to save Jesse. This secret alliance makes Lucie complicit in Grace’s manipulation, though Lucie believes she is acting for a worthy cause. The friendship ends when the truth about Grace’s bracelet is revealed.
  • Will and Tessa Herondale: Lucie’s parents support her despite her unusual powers. Will accepts Jesse after confirming he is alive, and Tessa defends Lucie’s decisions. Their acceptance helps Lucie feel less like an outcast.

Key Decisions and Consequences

Lucie’s choices have profound ripple effects throughout the story.

  • Raising Jesse Blackthorn: This act gives Jesse a second life and provides a key ally against Belial, but it also puts Lucie in debt to Malcolm and creates complications with the Clave. Jesse’s resurrection is central to the plot.
  • Keeping her friendship with Grace secret: This decision destroys Lucie’s relationship with Cordelia and delays the revelation of Grace’s manipulation. It forces Lucie to confront the cost of hiding the truth.
  • Summoning Rupert Blackthorn’s ghost: Lucie uses her power to stop Tatiana’s attack, saving her friends but failing to prevent Christopher’s death. This moment highlights both the power and limitations of necromancy.
  • Going to Cross Bones Graveyard: Lucie and Cordelia trap Lilith and gain passage to Edom. This plan is risky but ultimately allows Cordelia to kill Belial and free James.
  • Commanding the spirits of Silent Brothers and Iron Sisters: In the final battle, Lucie forces the Chimera demons out of their hosts, ending Belial’s siege. This act costs her immense energy but secures victory. Afterwards, her power disappears, leaving her to live a normal life.

Theme and Symbol Connections

Lucie’s necromancy embodies several themes of the novel:

Lucie also symbolizes the blurred line between life and death. She binds the living (Jesse) and the dead (ghosts) together, and her ability to command spirits reflects the novel’s exploration of what it means to truly live. Her writer’s imagination—her “world of stories”—parallels the magical world she navigates, suggesting that creativity and magic share a source of power.

Book-Specific Questions and Answers

1. Why did Lucie befriend Grace Blackthorn without telling Cordelia?

Lucie befriended Grace because Grace promised to help save Jesse Blackthorn, who was trapped in a state between life and death. Lucie kept the friendship secret because she feared Cordelia would object or report her to the Clave. She later admits to Cordelia that she didn’t want to burden her with the danger.

2. How did Lucie raise Jesse Blackthorn from the dead?

Lucie used her necromantic power to command Jesse’s spirit to return from the shadowy in-between place where Tatiana had trapped it. She dragged him back across the threshold between life and death while in Cornwall with Malcolm Fade. After the ritual, Jesse woke alive and whole, though the marks Belial had placed on him remained.

3. What caused the rift between Lucie and Cordelia?

Cordelia discovered that Lucie had been meeting Grace in secret and had not told her about Jesse. Their argument in Chapter 13 escalates when Cordelia says they will never be parabatai. Both feel betrayed by the other’s secrets—Cordelia’s hidden feelings for James, and Lucie’s hidden alliance with Grace.

4. How did Lucie use her powers in the final battle against Belial?

During the confrontation at Westminster Abbey, Lucie reached out with her necromancy and contacted the displaced spirits of the Silent Brothers and Iron Sisters. She begged them to reclaim their bodies from the Chimera demons that possessed them. The spirits obeyed, tearing the demons out of their hosts and allowing Shadowhunters to destroy them.

5. What happened to Lucie’s necromantic power after Belial’s defeat?

By the epilogue, Lucie’s necromantic power has vanished. Malcolm Fade confronts her, angry because he had hoped to use her abilities for his own purposes. Lucie does not mourn the loss; she faces a future without magic but with the people she loves. The disappearance of her power mirrors the end of the demonic crisis and her return to a more ordinary life.

For a deeper look at the novel’s ending and themes, see our /books/chain-of-thorns/ending-explained/ and /books/chain-of-thorns/questions-and-answers/ pages.