A Dawn of Onyx: Complete Reader’s Companion

⚠️ Spoiler Warning: This guide contains detailed spoilers for the entire novel. Proceed only if you've finished reading or are comfortable knowing the plot.

Quick Facts

Short Summary

Healer Arwen Valondale sacrifices herself to save her brother after he deserts the Onyx army. Taken captive to Shadowhold, she discovers her secret magic is more powerful—and more dangerous—than she ever knew. Forced to serve the feared King Kane Ravenwood, Arwen navigates treachery, forbidden attraction, and a Fae prophecy that names her the last full-blooded Fae destined to kill the invading king—but fated to die herself.

Full Summary

Use the chapter-by-chapter table below to jump to specific sections.

Arwen Valondale lives in the war-torn kingdom of Amber, secretly using her unexplained healing magic to save lives at the local infirmary. When her brother Ryder appears bloodied after deserting the Onyx army with stolen coin, Arwen agrees to help the family flee. But Onyx soldiers arrive first. To spare her family, Arwen reveals her healing ability and is taken prisoner.

At Shadowhold, the Onyx fortress, Arwen works in the apothecary under the gruff Dagan, who trains her in swordplay. She befriends the witch Mari and plans escape. During a failed bid, she is assaulted by Lieutenant Bert and rescued by the mysterious prisoner from the dungeon—revealed to be King Kane Ravenwood himself. Kane offers a deal: Arwen stays as his healer in exchange for protection of her family. She accepts but remains distrustful.

Tensions evolve into a fragile bond. Arwen discovers her mother suffers from Plait’s Disorder, curable only by burrowroot, a plant that blooms during a lunar eclipse. She joins Kane in the Shadow Woods, finding both the plant’s residue and an unexpected intimacy. Meanwhile, Halden—Arwen’s childhood friend and former love—is captured as a prisoner of war. He manipulates Arwen into planning his escape, but Kane warns Halden is an assassin.

During a banquet for King Eryx of Peridot, Halden’s escape triggers a chain of events. Kane confesses he is Fae, the son of the evil King Lazarus. Halden was sent to kill Fae defectors. Arwen decides to stay with Kane but secretly plans to harvest burrowroot during the eclipse. In the woods, she fights chimeras and a wolfbeast, nearly dying. Kane saves her using shadow magic, revealing his power.

Arwen and Mari travel to Peridot with Griffin. There, Kane confesses he knew Arwen was the last full-blooded Fae from the prophecy. He trained her to fight. She is the only one who can kill his father. Betrayed, Arwen resolves to fight anyway, embracing her destiny.

The climax unfolds at Siren’s Cove. Lazarus ambushes them, recites the prophecy foretelling Arwen’s death, and attacks. Kane transforms into a dragon, and a celestial battle erupts. Arwen’s mother is killed by a flaming arrow. Grief unleashes Arwen’s destructive power. She collapses, waking on a cloaked ship. Despite Kane’s attempts to protect her, Arwen chooses to fight, knowing her life will be forfeit. The book ends with an excerpt from the sequel A Promise of Peridot.

Characters

• Arwen Valondale – A healer from Amber, secretly Fae; discovers her heritage and destiny.
• King Kane Ravenwood – Onyx king, actually Fae prince; struggles between duty and love.
• Mari – Young witch, Arwen’s loyal friend and ally.
• Halden – Arwen’s childhood friend, later revealed as an assassin.
• Ryder Valondale – Arwen’s brother; his desertion sets the plot in motion.
• Dagan – Gruff soldier who trains Arwen in sword fighting.

Themes

• Healing and sacrifice – Arwen’s healing magic is both gift and burden; she sacrifices freedom for family.
• Power and control – Dynamics of captivity and authority, challenged and shared.
• Trust and betrayal – Arwen navigates deceit from Halden, Kane’s secrets, and hidden agendas.
• Self-discovery and bravery – Arwen evolves from fearful healer to warrior embracing her Fae heritage.
• Light versus darkness – Contrast between Arwen’s inner light and Kane’s shadow magic.

Symbols

• Burrowroot – Rare plant blooming during lunar eclipse; key to curing Arwen’s mother.
• Shadow magic – Kane’s dangerous Fae power representing his hidden nature and burden.
• Amulet of Briar Creighton – Jewelry mistaken for power source; symbolizes misplaced trust.
• Blade of the Sun – Legendary weapon in the prophecy; represents Arwen’s destined role.

Ending Overview

Arwen discovers she is the last full-blooded Fae, destined to kill King Lazarus but also fated to die (per the prophecy). After a dragon battle, her mother is killed, and Arwen unleashes destructive power. She wakes on a ship, rejects Kane’s protection, and chooses to fight knowing her own life will be lost. The story sets up the sequel A Promise of Peridot.

Chapter-by-Chapter Table

8 Common Questions and Answers

1. Who is the last full-blooded Fae? Arwen Valondale is the last full-blooded Fae, as revealed by the prophecy.

2. Why does Kane capture Arwen? Kane captures Arwen because she is the last full-blooded Fae—the only one who can kill his father.

3. Does Arwen’s family survive? Her brother Ryder and sister Leigh survive; her mother is killed by a flaming arrow in the final battle.

4. What is the burrowroot? A rare plant that blooms only during a lunar eclipse; it cures Arwen’s mother’s illness.

5. Is Kane good or evil? Kane is morally complex—a Fae prince hiding his identity, capable of violence but genuinely caring for Arwen.

6. Does Arwen end up with Kane? They develop a deep bond, but the book ends with Arwen rejecting his protection and choosing to fight alone.

7. What is the prophecy about Arwen? She is the “final Fae of full-blood born” who will kill King Lazarus with the Blade of the Sun but also die in the process.

8. Is there a sequel? Yes, A Promise of Peridot (Sacred Stones #2) continues the story.

Further Exploration

• Ending Explained
• Questions and Answers
• Chapter 1 Summary
• Characters Overview
• Themes: Healing and Sacrifice
• Quiz
• Essay Prompts