Rating: ⭐⭐⭐⭐ (4/5 Stars - The "I'm Emotionally Compromised But In A Good Way" Award)
Listen, when I finished "Quicksilver," I thought I knew what I was getting into with "Brimstone." I expected more fae politics, more quicksilver magic, more Fisher being broody and possessive. What I got was a 720-page emotional rollercoaster that somehow manages to be both everything I wanted and nothing I expected, featuring vampire courts, demon dimensions, a fox that dies (I'M STILL NOT OVER IT), and a plot twist at the end that made me throw my Kindle across the room in the best possible way.
Callie Hart said "you thought book one was intense?" and then proceeded to turn the dial up to eleven, add some brimstone, throw in a cosmic threat that's literally eating the universe, and cap it all off with a revelation that recontextualizes everything we thought we knew about Kingfisher. And honestly? I'm here for it.
What Fresh Chaos Is This About?
"Brimstone" picks up immediately after the events of "Quicksilver," and by immediately, I mean Saeris hasn't even had time to process the fact that she's now a half-fae, half-vampire hybrid queen of the Blood Court. No pressure, right? Just your average Tuesday where you wake up with fangs, can't go out in sunlight, and have to convince a bunch of ancient, powerful vampires called the Lords of Midnight that you're worthy of ruling them despite being, you know, mostly mortal just a few days ago.
Oh, and there's a cosmic rot consuming the universe, turning everything it touches into nightmare fuel creatures called feeders. And Saeris's Alchemist powers are basically a ticking time bomb that could explode at any moment. And she's God-Bound to Kingfisher, which means the literal gods of chaos have decided they're responsible for saving all of existence. No big deal.
The book splits into multiple storylines: Saeris learning to control her volatile magic while navigating vampire politics, Kingfisher and Carrion traveling back to the oppressive Silver City of Zilvaren to retrieve Saeris's brother Hayden and secure resources, and everyone racing against time to figure out how to stop the rot before it consumes everything.
And just when you think you've got a handle on things, Hart throws in demon scorpions, possessed princesses, a magical cure that turns vampires back into fae, and a cliffhanger ending that involves dragons and a revelation about Kingfisher's parentage that will make you scream into the void.
The Characters: Growth, Trauma, and One Very Good Fox
Saeris Fane: Our girl has been through it. In the span of what feels like weeks, she's gone from starving thief in the Third Ward to Alchemist to vampire queen, and she's handling it with... well, varying degrees of success. What I love about Saeris in this book is that she's not suddenly perfect. Her magic is unstable, her confidence wavers, and she makes mistakes. But she's also learning, growing, and becoming the strategic queen her people need.
The book shows us Saeris mastering her Alchemist abilities through discipline and intention rather than brute force. She learns that control comes from understanding, not domination. As one character explains: "There isn't much I wouldn't sacrifice to make you happy, Osha. A little healing magic is the least of it." This encapsulates Saeris's journey—she's learning what she's willing to sacrifice and what lines she won't cross.
Kingfisher (Khydan Graystar): If you thought Fisher was intense in book one, buckle up. This man is dealing with his own trauma, his complicated past, and the revelation of his true name—something that's been hidden even from him. The book peels back layers of his character, showing us the vulnerable man beneath the warrior facade.
Fisher's devotion to Saeris is unwavering, but it's not without cost. When he says "I will burn worlds to keep my word to her, old man," you believe him. But we also see him struggle with the quicksilver poisoning his body, his complicated relationship with his deceased mother's messages, and the weight of protecting everyone he loves.
And that ending revelation? Chef's kiss. Let's just say Fisher's been keeping some MAJOR secrets, and not by choice.
Carrion Swift: The chaos gremlin we all needed. Carrion continues to be the perfect blend of comedic relief and surprising depth. His banter with Fisher is gold, and his revelation about why he can't love Saeris romantically—"My heart was just too full of sorrow to make room for her"—is genuinely heartbreaking. He's dealing with immortal grief, and it shows.
Also, the man is apparently the lost heir to the fae throne, has fire magic, and gets recognized by satyrs as their forgotten king. So that's a whole thing.
Taladaius: Saeris's vampire sire gets some serious character development in this book. His journey from morally ambiguous vampire lord to someone seeking redemption is compelling. When he bonds with the god sword and names it "Redemption," it's not subtle, but it works.
Onyx: THE FOX. I cannot discuss what happens to Onyx without getting emotional. Let's just say that Callie Hart knows exactly how to destroy readers, and she does it with a small white fox who is too pure for this world.
Supporting Cast: From Foley (the golden-toothed wolf with his own trauma), to Hayden (Saeris's brother who's dealing with his own misconceptions), to the various Lords of Midnight, everyone gets their moment. Even minor characters feel fleshed out and purposeful.
The Plot: Ambitious, Sprawling, and Occasionally Overwhelming
Here's where we need to talk about both the brilliance and the challenges of "Brimstone." This book is AMBITIOUS. Hart is juggling multiple storylines, a massive cast of characters, complex magic systems, political intrigue, cosmic threats, and a romance that's already established but still evolving.
When it works, it REALLY works. The scenes where Saeris masters her alchemy are fascinating. The political maneuvering in the vampire court is tense. The mission to Zilvaren reveals crucial information about the world. The climactic scenes with Belikon are satisfying. And that ending? Absolutely perfect cliffhanger.
But—and this is important—the book sometimes struggles under the weight of its own ambition. At 720 pages, there are sections that feel like they could have been tightened. Some plot threads get introduced and then abandoned or resolved too quickly. The pacing can be uneven, with intense action sequences followed by slower political scenes.
The rot, which is supposed to be the primary threat, sometimes feels like background noise while we deal with vampire politics and personal drama. And while I appreciate the complexity, there are moments where I wished for a bit more focus.
That said, the bones of this story are EXCELLENT. The alchemy system is unique and well-thought-out. The revelation about Zilvaren being a giant magical sigil is brilliant. The demon dimension and the dragons are intriguing. And the character work is strong enough to carry you through the slower sections.
Quotes That Will Live In Your Head Rent-Free
Callie Hart has a gift for writing lines that hit you right in the feels. Here are some actual quotes from "Brimstone":
"There isn't much I wouldn't sacrifice to make you happy, Osha. A little healing magic is the least of it."
"You are the single most stunning thing I have ever seen, Saeris."
"I've killed more people than I can count… But for better or worse, you have brought me back to life."
"My soul recognized a flicker of itself burning inside someone else and it knew."
"My heart was just too full of sorrow to make room for her." (Carrion explaining why he can't love Saeris)
"A person cannot be coerced into truly loving another. It would rob them of their free will."
"You are the only thing that keeps my moral compass pointing north, Little Osha."
"I will burn worlds to keep my word to her, old man."
"Hope is a dangerous, double-edged sword, but it's the only one we have left to wield."
And my personal favorite, which perfectly captures the absurdity and charm of this series: "I really like your horns." (Context makes it even better, trust me.)
Trigger Warnings: The Necessary Conversation
Before diving in, let's talk content warnings because this book goes to some dark places:
⚠️ Graphic violence and battle scenes ⚠️ Character death (including a beloved animal companion) ⚠️ Torture and imprisonment ⚠️ Blood and gore (it's a vampire book, so...) ⚠️ Explicit sexual content ⚠️ Trauma and PTSD ⚠️ Magical oaths and coercion ⚠️ Body horror (the rot and feeders) ⚠️ Grief and loss ⚠️ Political manipulation ⚠️ Themes of sacrifice ⚠️ Sunlight sensitivity (for those with photosensitivity concerns)
The book handles these themes with care, but they're present and sometimes intense. Read with awareness of your own boundaries.
Tropes: The Fantasy Romance Buffet
"Brimstone" serves up a feast of beloved fantasy romance tropes:
✅ Fated Mates/God-Bound: Saeris and Fisher are literally chosen by the gods
✅ Vampire Queen: Saeris rules the Blood Court despite being a hybrid
✅ Possessive MMC: Fisher's protectiveness reaches new heights
✅ Strong FMC: Saeris is learning to wield incredible power
✅ Found Family: The Lupo Proelia and their allies
✅ Enemies to Allies: Various political factions learning to work together
✅ Magical Training Arc: Saeris mastering her Alchemist abilities
✅ Court Politics: Vampire court intrigue and fae machinations
✅ Cosmic Stakes: The fate of the universe hangs in the balance
✅ Secret Parentage: That ending revelation about Fisher
✅ Sacrifice for Love: Multiple characters making impossible choices
✅ Animal Companion: Onyx the fox (I'm still not okay)
✅ Mythology-Inspired: Gods, demons, and cosmic forces
✅ Dual POV: We get both Saeris and Fisher's perspectives
✅ Slow Burn (Established Relationship): The romance deepens rather than begins
Why This Gets 4 Stars Instead of 5
Let me be clear: I loved this book. LOVED it. But I'm giving it 4 stars instead of 5 for some specific reasons, and I think it's important to be honest about them:
What Works Brilliantly:
- Character Development: Both Saeris and Fisher grow in meaningful ways
- Magic System: The alchemy is unique, complex, and fascinating
- Emotional Depth: The relationships feel real and earned
- World-Building: The expansion into demon dimensions and cosmic threats is excellent
- That Ending: The cliffhanger is chef's kiss perfect
- Themes: Exploration of sacrifice, free will, and the cost of power
What Holds It Back:
- Pacing Issues: At 720 pages, some sections drag while others rush
- Plot Thread Management: Some storylines feel underdeveloped or abandoned
- The Rot: The primary threat sometimes feels like background noise
- Continuity: A few timeline and location inconsistencies
- Character Overload: With such a large cast, some characters don't get enough development
- Middle Book Syndrome: Some elements feel like setup for book three rather than satisfying in themselves
The book is trying to do SO MUCH, and while it succeeds more often than not, there are moments where you can feel it straining under the weight of its own ambition. A tighter edit could have elevated this from great to exceptional.
The Spice: Present But Not Overwhelming
For those wondering about the heat level: 🌶️🌶️🌶️ (3/5 chilis)
The book contains several explicit scenes (chapters 7, 20, 29, and 37 if you want to know), but they're not the focus. The intimacy between Saeris and Fisher feels earned and emotionally resonant rather than gratuitous. The scenes serve to deepen their bond and show their vulnerability with each other.
If you prefer closed-door romance, you can skip those chapters without losing plot-critical information. If you enjoy spice, the scenes are well-written and emotionally charged.
The Alchemy System: A Masterclass in Magic
One of the strongest elements of "Brimstone" is the continued development of the alchemy system. Based on the classical elements of Salt, Quicksilver, and Brimstone, the magic requires mental discipline, intention, and often painful sacrifice.
Saeris learns that she can't just force the quicksilver to obey—she must negotiate, understand, and work with it. The concept of sealing runes, creating relics, and the different elemental affinities is fascinating and feels fresh in a genre saturated with generic magic systems.
The revelation that alchemists can "break" magical oaths and undo bindings adds a whole new dimension to the power dynamics in the story. And the discovery that brimstone—the element that can kill the rot—comes from fire sprites raises impossible ethical questions about sacrifice.
The Ending: Let's Talk About THAT Twist
I'm going to be vague to avoid major spoilers, but we need to discuss that ending because it's WILD.
After everything—the vampire cure chaos, the evacuation, the rescue of Fisher from Belikon's magical prison, the heartbreaking moment with Onyx, the revelation of Fisher's true name (Khydan)—Saeris and Fisher end up in a demon dimension. They're captured by dragons, brought before a tribunal, and just when you think things can't get more intense...
Fisher reveals he's the son of Styx, the god of the underworld. He's not just fae. He's part god. And he's come to claim the dragon he's entitled to.
EXCUSE ME, CALLIE HART? You're just going to drop that bombshell and then END THE BOOK?
It's brilliant. It's infuriating. It's perfect. And it makes me desperate for book three.
The Verdict: A Flawed But Compelling Sequel
"Brimstone" is an ambitious, emotionally charged sequel that expands the world of the Fae & Alchemy series in exciting ways. While it struggles occasionally with pacing and plot management, the strong character work, unique magic system, and that absolutely killer ending make it a compelling read.
This is a book that will frustrate you and enchant you in equal measure. You'll want to skim some sections and you'll be riveted by others. You'll question some narrative choices and applaud others. But through it all, you'll be invested in these characters and desperate to know what happens next.
Callie Hart has created something special with this series. It's not perfect, but it's ambitious, heartfelt, and genuinely surprising. The alchemy system alone is worth the price of admission, and the character relationships are the beating heart that keeps you turning pages even when the plot gets tangled.
Read this if you:
- Loved "Quicksilver" and need to know what happens next
- Enjoy complex magic systems with actual rules and consequences
- Love vampire/fae politics and court intrigue
- Appreciate character-driven fantasy with cosmic stakes
- Can handle cliffhanger endings (because this one is BRUTAL)
- Want romance that's already established but still evolving
- Enjoy mythology-inspired fantasy with gods and demons
- Don't mind longer books with multiple POVs
Skip this if you:
- Haven't read "Quicksilver" (seriously, start there)
- Hate cliffhangers with a burning passion
- Prefer tightly plotted books without meandering subplots
- Need every plot thread resolved in each book
- Can't handle animal companion peril
- Want fast-paced action throughout
- Prefer standalone stories
Final Thoughts: "Brimstone" is a solid 4-star sequel that sets up what promises to be an explosive conclusion to the trilogy. It's flawed but fascinating, ambitious but occasionally unfocused, and absolutely worth reading if you're invested in this world and these characters.
The magic system is brilliant, the character work is strong, the emotional beats hit hard, and that ending will haunt you until book three arrives. Just be prepared for a longer, more complex journey than book one, with all the rewards and frustrations that entails.
Four stars. A worthy sequel. Clear your schedule, prepare for emotional damage, and get ready for a cliffhanger that will make you want to storm Callie Hart's house demanding answers.
You're welcome. Now go read it so we can collectively scream about that ending together.
P.S. - If anything happens to Onyx in book three, I'm rioting. Just putting that out there.
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