You finished The Lion and the Deathless Dark, your jaw is somewhere on the floor, and you need to talk about that ending. Come sit down. We are going to walk through all of it.

Full spoilers ahead. This covers the whole plot, the twist, and the final page. It also lightly touches the wider Crowns of Nyaxia world, so if you want to go in fresh, this is your stop. If you need a spoiler-free catch-up on the series first, here is my Crowns of Nyaxia recap before The Lion and the Deathless Dark.

This is Book 5 of Crowns of Nyaxia and the first book of the new Bloodborn Duet. It steps away from the couples you know and hands the story to a bounty hunter and a cursed vampire prince, and it is my favorite the series so far. Lets get into why!

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If you want the big-picture of how everything connects, my Crowns of Nyaxia reading order (coming soon) lays it all out.

The Lion and the Deathless Dark Plot Summary

A world without a sun

We open in Obitraes, a realm that has not seen sunlight in ten years. The sun god Atroxus was murdered and the sun itself shattered, and in the dark that followed, the vampire Houses swept in and claimed dominion over human lands.

Humanity now survives as cattle, servants, or scavengers in the ruins. If you read the Shadowborn Duet you know exactly whose choice broke the sky. This is the world left in its wake.

Kyrene, the hero who is not one

Our lead is Kyrene, and she is no chosen one, no matter what the world believes. She carries Zefiah, the Blade of Retribution. A sentient, judgmental, god-forged sword. She presents herself as the Vindica Ultis, a holy warrior of Shiket, the Goddess of Justice.

The truth is uglier. Ten years ago, in the chaos of the vampire invasion, Kyrene killed the real chosen hero with a rock and took the sword to survive, in the middle of a miscarriage and the collapse of everything. She has been wearing a dead woman's identity ever since.

Her carefully built lie starts to crack when a vampire attack on the stronghold of Hegaella kills the only people she loves. Valentina, a teenage machinist she thinks of as a daughter. Mirie, a priestess who believed in Kyrene's hidden goodness. And Marko, a mercenary who dies protecting Valentina. Their deaths break something in her. In her grief and fury she summons Shiket, and when the goddess arrives caring more about vengeance than protection, Kyrene kills her own patron goddess.

Septimus and the offer

That impossible act draws the attention of Septimus, a prince of the cursed House of Blood. He recovers Kyrene and tells her the seers have long prophesied her role in bringing down the White Pantheon. His pitch is simple and enormous: together, they will hunt and kill the gods, one by one.

Septimus has his own reason. He wants Nyaxia, the Mother of Vampires, dead, because she cursed his bloodline. Every Bloodborn vampire eventually degenerates into a mindless, feral beast, and killing her is the only way he can imagine to free his people, and himself.

The god-hunt

Their first targets are Ix, the Goddess of Sex, and Kajmar, the God of Pleasure. In the northern territories Kyrene and Septimus infiltrate a divine stronghold. Fighting their way through an intense gauntlet of seduction, intoxication, hallucination, and the killing of these two gods reveals both the Pantheon's rot and Kyrene's own buried desires.

As they travel and fight they are drawn to each other. It starts on the lustful, distrustful side, which had me nervous at first. But the trust they build through shared trauma and sheer survival is absolutely earned.

Vaktrana and the siege

Septimus brings Kyrene to Vaktrana, the Bloodborn capital. There the full weight of his family's history and his curse becomes undeniable. They share a night of real vulnerability and then the Nightborn army lays siege to the city. They escape through hidden gates and race toward the ruined temple in Hegaella, where the last of Shiket's blades are kept, for the final confrontation with Nyaxia.

The temple ambush

At the temple, they are ambushed by Srana, the Goddess of Machinery, who has reanimated the corpses of Valentina, Mirie, and Marko as metal-infused automatons. Kyrene is forced to face the twisted remains of everyone she lost, and she kills Srana in a storm of grief and spite. Then the real trap springs.

The Lion and the Deathless Dark Ending Explained

Why killing Nyaxia fails

Kyrene's attempt to kill Nyaxia does not work, and the reason is the lie she has carried the whole book. The prophecy required the true chosen one, and Kyrene is a fraud who murdered that person a decade ago. Nyaxia, far from a cornered victim, reveals she has been manipulating the Bloodborn line for millennia.

The real architect: Acaeja

Here is the twist that changes everything. Acaeja, the Goddess of Fate, reveals herself as the true author of it all. For two thousand years she has orchestrated this god-war. Steering every player, to eliminate her divine siblings and Nyaxia and become the sole ruler of a world she intends to dismantle and rebuild to her own design. Kyrene and Septimus were never rebels striking a blow for humanity. They were fate's instruments the entire time. Nyaxia is banished to the deadlands, and Acaeja begins remaking reality.

If Acaeja steering the board from the shadows feels familiar, it should. She has been the quiet hand behind the outcomes of the Nightborn and Shadowborn duets too, and this is where that long game finally shows its teeth.

Septimus, the curse, and the Turning

Amid the collapse, Septimus finally loses the fight with his bloodline. The Bloodborn curse takes his mind. Kyrene is also carrying a slow fatal wound so in one of their last lucid moments together he honors her request and turns her into a vampire to save her life. It is a devastating inversion of everything he was fighting for. He could not save his people from the curse, and the woman he loves is now vulnerable to it as well.

The final page

The book jumps forward three months. Kyrene wakes as a newborn vampire in a world being unraveled and rebuilt by Acaeja, with people hanging suspended in light as the goddess reshapes existence. Kyrene's first clear thought is a vow. She will hunt Acaeja, and she will find Septimus. That is the cliff hanger Broadbent leaves us on, and it is a brutal one!

What This Means for the Bloodborn Duet Finale

This is Book 1 of a duet, so nothing is resolved, and the setup for the finale is enormous and brutal. Acaeja has essentially won, at least for now, and she is remaking reality in real time. Nyaxia is banished but not dead. Septimus is lost to the curse but not gone, and Kyrene is newly immortal, freshly furious, and preparing to go against a goddess of fate who has never once lost.

Book 6 has to answer whether fate can actually be beaten, whether Septimus can be pulled back from the curse, and what a world rebuilt by Acaeja even looks like for the survivors of the earlier duets. I will have a full breakdown the moment it lands!

Characters in The Lion and the Deathless Dark

Kyrene. Our girl, and not a hero in any traditional sense. A bounty hunter running on grief and a stolen identity, wielding a sword meant for someone she killed. She is angry, ruthless, and refuses to be a passive victim of fate, and watching her go from fraud to god-slayer to newborn vampire with a vow on her lips is the whole ride.

Septimus. The silver-tongued prince of the House of Blood, calculating, lethal, and racing his own biology. He has lurked at the edges of this series for four books, and here he finally takes the stage as a full lead. Everything he does is in service of freeing his people from the curse that will eventually take his mind.

Zefiah. The sentient Blade of Retribution, god-forged, judgmental, and very much a character in its own right. Kyrene's constant companion until it is shattered.

Valentina. A teenage machinist and Kyrene's surrogate daughter, whose death is the spark for everything. Her reanimation as one of Srana's automatons is one of the book's cruelest moments.

Acaeja. The Goddess of Fate, and the true villain of the entire saga. She spends this book letting everyone believe they are choosing, and reveals at the end that she scripted all of it. For thousands of years.

Nyaxia. The Mother of Vampires, the goddess at the center of the whole series, revealed here as both a manipulator of the Bloodborn line and, ultimately, another piece in Acaeja's game. Banished to the deadlands.

Sylina and Atrius. If you read Slaying the Vampire Conqueror, you will recognize them. Sylina, the blind seer, is an ally to Septimus, and Atrius, King of Glaea and Septimus's cousin, helps Kyrene after her transformation. Their return is the payoff for reading the standalone.

My Honest Take

I am a sucker for morally grey characters going up against higher forces, and a sword (or any sentient side kick) with an attitude, so this book had me from the beginning. Kyrene is exactly my kind of heroine, a human woman running on grief and vengeance in a world stacked against her. Septimus is everything you want in a vampire love interest. Calculating, lethal, and devastatingly irresistible.

The middle drags a little but if there is one thing Carissa Broadbent knows how to do, it is make the last quarter of a book go out with a bang! The Acaeja reveal reframes the entire series, and that final page is the kind of diabolical ending that has you needing the next book immediately.

This is probably my favorite book of the whole series. Watching Broadbent go from good to great to phenomenal across Crowns of Nyaxia has been such a ride, and I cannot wait for the finale.

If you need something to fill the hole this ending left, here are a few to line up next.

📚 The Serpent and the Wings of Night by Carissa Broadbent: where the whole Crowns of Nyaxia world begins, if you somehow landed here first. Full spoiler-free front door to the series.

📚 Slaying the Vampire Conqueror by Carissa Broadbent: the standalone that introduces Sylina and Atrius, both of whom carry into this book. Read it for the fullest Bloodborn context.

📚 Shield of Sparrows by Devney Perry: a newer epic romantasy with political-marriage tension and a slow burn, for the exact itch Kyrene and Septimus leave behind.

📚 Fourth Wing by Rebecca Yarros: deadly stakes, a heroine who should not survive, and a love interest you should not trust. Your next big binge.

📚 The Bridge Kingdom by Danielle L. Jensen: a spy-trained heroine sent into an enemy kingdom, with a slow-burn enemies-to-lovers built on deception and survival.

Working through the Crowns of Nyaxia guides? The full reading order, the Serpent and the Wings of Night breakdown, the Songbird and the Heart of Stone ending, and the Fallen and the Kiss of Dusk finale are all coming soon.

📚 Looking for your next obsession? Book of the Month lets you try a new book every month starting at $5. Try your first month for $5

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Frequently Asked Questions

How does The Lion and the Deathless Dark end?
Kyrene fails to kill Nyaxia, because she is not the true chosen one the prophecy required. Acaeja, the Goddess of Fate, then reveals she orchestrated the entire two-thousand-year god-war to eliminate her divine siblings and Nyaxia and seize control of reality. Nyaxia is banished to the deadlands. Septimus loses his mind to the Bloodborn curse and, in his last lucid moments, Turns Kyrene into a vampire at her request to save her life. The book ends three months later, with Kyrene waking as a newborn vampire in a world Acaeja is dismantling, vowing to hunt the goddess and find Septimus.

Can you read The Lion and the Deathless Dark as a starting point?
Yes. It is Book 5 of Crowns of Nyaxia and Book 1 of the Bloodborn Duet, with a brand-new cast and a fresh conflict, so it works as an entry point. That said, the emotional payoffs land harder if you have read the earlier books, especially the returns of Sylina and Atrius from Slaying the Vampire Conqueror and the fallout from the Shadowborn Duet.

Who is Kyrene?
Kyrene is the main character, a bounty hunter who killed the real chosen hero of the Goddess Shiket and stole her god-forged sword, Zefiah, to survive the vampire invasion. She has posed as a divine warrior for ten years, and the book follows her turn from fraud to genuine god-slayer.

Do Kyrene and Septimus end up together?
Not in this book. Their romance builds from distrust into real intimacy, but the ending tears them apart. Septimus succumbs to the Bloodborn curse and loses his sanity after Turning Kyrene to save her, and she ends the book alone and immortal, vowing to find him. Their story continues in the Bloodborn Duet's second book.

What is the Bloodborn curse?
The Bloodborn curse is an affliction Nyaxia placed on the House of Blood. Over time, every Bloodborn vampire degenerates into a mindless, feral beast that cannot reason or recognize anyone. Freeing his people from this fate is Septimus's entire motivation, and it is what ultimately claims him.

Is The Lion and the Deathless Dark spicy, and what are the content warnings?
Yes, the romance is central and open-door, building from lust and distrust into genuine intimacy. Content warnings include graphic violence, the death of loved ones including a teenager, reanimated corpses of dead companions, grief and trauma, drug and intoxication scenes, a miscarriage referenced in backstory, and body horror tied to the Bloodborn curse.