Brimstone by Callie Hart
Brimstone by Callie Hart picks up the story of Saeris Fane and Kingfisher of the Ajun Gate as their worlds become more dangerous and their responsibilities grow heavier. Saeris never expected to become the ruler of a vampire court, and stepping into that position proves far more complicated than simply claiming a crown. Her growing power comes with its own consequences, while the realm she once called home remains brutally hostile. Returning to Zilvaren may be necessary, but doing so could put everything she has fought for at risk.
Kingfisher faces a crisis of his own. A mysterious curse is spreading through Yvelia, threatening the people he has sworn to protect. He has survived battles, endured impossible circumstances, and carried more responsibility than anyone should have to bear. Now he must decide how far he is willing to go to keep a promise to Saeris, even when fulfilling it could cost him everything.
As the story unfolds, Callie Hart expands the world introduced in Quicksilver, bringing readers deeper into vampire court politics, powerful magic, ancient secrets, and conflicts that reach far beyond the lives of its central characters. The addition of Kingfisher's perspective also gives the story another emotional dimension, allowing readers to experience his responsibilities, fears, loyalty, and feelings for Saeris more closely.
The relationship between Saeris and Kingfisher remains at the emotional center of the novel. Their connection is intense, but it is also shaped by trust, sacrifice, tenderness, and the enormous pressure surrounding them.
Fast paced, dramatic, romantic, and packed with revelations, Brimstone is a fantasy sequel that pushes its characters toward difficult choices while expanding the mythology of the series. For readers who loved Quicksilver, this next chapter brings bigger dangers, deeper relationships, and plenty of questions about what comes next.
Strengths and Weaknesses
Strengths
Key Ideas From the Book
Who Should Read This Book
Kingfisher faces a crisis of his own. A mysterious curse is spreading through Yvelia, threatening the people he has sworn to protect. He has survived battles, endured impossible circumstances, and carried more responsibility than anyone should have to bear. Now he must decide how far he is willing to go to keep a promise to Saeris, even when fulfilling it could cost him everything.
As the story unfolds, Callie Hart expands the world introduced in Quicksilver, bringing readers deeper into vampire court politics, powerful magic, ancient secrets, and conflicts that reach far beyond the lives of its central characters. The addition of Kingfisher's perspective also gives the story another emotional dimension, allowing readers to experience his responsibilities, fears, loyalty, and feelings for Saeris more closely.
The relationship between Saeris and Kingfisher remains at the emotional center of the novel. Their connection is intense, but it is also shaped by trust, sacrifice, tenderness, and the enormous pressure surrounding them.
Fast paced, dramatic, romantic, and packed with revelations, Brimstone is a fantasy sequel that pushes its characters toward difficult choices while expanding the mythology of the series. For readers who loved Quicksilver, this next chapter brings bigger dangers, deeper relationships, and plenty of questions about what comes next.
Strengths and Weaknesses
Strengths
- Expansive fantasy world and deeper mythology
- Compelling relationship between Saeris and Kingfisher
- High stakes and relentless story progression
- Kingfisher's new perspective adds emotional depth
- Strong themes of loyalty, sacrifice, and love
- The fast pace can make some developments feel rushed
- Several plot threads compete for attention
- Some characters receive less page time than readers may want
- Editing and continuity issues can occasionally distract from the story
Key Ideas From the Book
- Power often comes with responsibilities that cannot be avoided.
- Love can become a source of strength during impossible circumstances.
- Protecting the people you care about can require painful sacrifices.
- Trust becomes especially important when the truth is hidden.
- Leadership means making difficult choices without having perfect answers.
- Loyalty can be tested when personal desires conflict with greater responsibilities.
- Understanding your power is just as important as possessing it.
Who Should Read This Book
- Fans of Quicksilver who want the story to continue.
- Readers who enjoy fantasy romance with powerful magical worlds.
- Anyone who loves vampire courts, supernatural politics, and ancient secrets.
- Readers who enjoy intense romantic relationships alongside major fantasy conflicts.
- Fans of fast paced fantasy stories filled with revelations, battles, and emotional stakes.
Home › Science Fiction & Fantasy Books › Romantasy › Brimstone
Updated September 27, 2026
Brimstone is the second volume in Callie Hart’s Fae & Alchemy trilogy. Start with Quicksilver: this sequel opens with Saeris Fane already transformed by power, crowned within the vampire court and separated from a home she may no longer be able to survive.
Updated September 27, 2026
Brimstone is the second volume in Callie Hart’s Fae & Alchemy trilogy. Start with Quicksilver: this sequel opens with Saeris Fane already transformed by power, crowned within the vampire court and separated from a home she may no longer be able to survive.
The conflict after the first victory
Saeris is needed in Zilvaren, but its punishing suns make returning personally dangerous. Sending Kingfisher in her place would turn trust into action at exactly the moment when Yvelia faces a mysterious curse of its own. The premise therefore pushes the romance beyond attraction: promises, duty and divided loyalties have consequences for two realms.
For readers seeking sequel escalation, the appeal is the collision of intimate trust with public responsibility. Saeris and Fisher cannot treat love as a private refuge when both carry obligations that may pull them in opposite directions.
For readers seeking sequel escalation, the appeal is the collision of intimate trust with public responsibility. Saeris and Fisher cannot treat love as a private refuge when both carry obligations that may pull them in opposite directions.
Best for / skip if
Choose Brimstone if you want dark romantasy, returning characters, court power, dangerous magic and a relationship tested by political stakes. It is designed for readers continuing an established arc, not for someone looking for a clean standalone entry point.
Skip it or check detailed content guidance first if graphic violence, adult situations or high intensity romantic fantasy are outside your limits. The publisher positions the book for readers 17+. That is a content boundary, not a quality rating.
Skip it or check detailed content guidance first if graphic violence, adult situations or high intensity romantic fantasy are outside your limits. The publisher positions the book for readers 17+. That is a content boundary, not a quality rating.
Series order
- Quicksilver - the beginning of Saeris and Fisher’s story.
- Brimstone - the continuation; this page.
- A further volume is part of the publisher described trilogy, but this guide does not invent a title or publication status not needed to understand the current reading order.
Read next for a different romantasy balance
- A Court of Thorns and Roses - for faerie bargains and a longer court centred arc.
- Fourth Wing - for dragons, military trials and immediate survival pressure.
- A Forbidden Alchemy - for magic and romance shaped more directly by labour, class and rebellion.
