Vanessa Le's new fantasy duology starter follows a demon-hunting duo in an exorcist university layered with magic, murder, and corruption — perfect for fans of BABEL and DIVINE RIVALS.
In Yennington, exorcism is a job for two: a demon caller and a demon slayer. Kiet Sren is a hotshot caller despite dropping out of the esteemed Phenbridge University; his blood attracts any demon. Song Sarna is the top slayer of her class; her blade and wit kill any demon. Together, they run Inkspill Agency.
When Kiet's estranged family hires them to hunt an aberrant demon, they are propelled into the most dangerous job of their lives — an investigation that could uncover the workings of a deadly group seeking to destroy the university from the inside out.
But as their investigation dredges up long-buried history, they discover that the one behind this criminal group is closer to home than they realized, and that perhaps the upstanding Phenbridge University is hiding secrets of its own. To exorcize the aberrant demon and put an end to the deadly possessions, Kiet and Song must decide how much they're willing to bleed: for their families, for their city — and for each other.
Vanessa Le's latest crossover fantasy combines dark academia with a propulsive detective tale at its finest — with a slow-burn romance and medical magic system as intricate as lab work.
**ARC review: the book was gifted but this is my honest opinion**
⭐ A Gothic Academia Fantasy with Demons, Mystery, and Heart
When Shadows Burn is a gripping blend of gothic academia, paranormal fantasy, and detective thriller, delivering a fresh take on the genre without relying on overused tropes like faeries or vampires. Instead, the story dives into a world of demons, exorcists, and morally complex magic systems, creating something that feels both unique and immersive.
Told through third-person dual POV, the narrative follows Kiet and Song, allowing readers to experience both sides of the story while building tension and emotional depth between the two leads.
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🌶️ Spice Level
Low to moderate spice.
This story leans more heavily into plot, mystery, and character relationships rather than explicit romance. While there is chemistry between the characters, the focus remains on their partnership, emotional development, and the unfolding investigation.
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🖤 Characters That Feel Real and Lived-In
One of the strongest aspects of this book is its character work.
Song is a strong, intelligent female protagonist studying at Phenbridge University as a demon slayer—gifted with blood that burns demons. She’s driven, disciplined, and deeply tied to her sense of duty.
Kiet, on the other hand, is an underdog dropout and demon caller who runs his own agency. In this world, callers bind demons while slayers destroy them, creating an interesting dynamic between the two roles—and between the characters themselves.
Their dialogue is engaging, natural, and often fun, adding depth to their relationship and making their partnership feel authentic as it evolves throughout the story.
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🌍 Worldbuilding: Gothic Academia Meets Demon Hunting
The setting blends dark academia aesthetics with a demon-infested world, centered around Phenbridge University. The magic system—where callers control demons and slayers eliminate them—adds a structured and compelling layer to the story.
As Song and Kiet begin working together through Kiet’s agency, the novel shifts into a detective-style narrative, following a series of murders. The investigation unfolds like a thriller, pulling readers deeper into a world filled with danger, secrets, and hidden truths about Phenbridge itself.
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👨👧 Themes of Family, Duty, and Identity
At its core, When Shadows Burn is deeply rooted in family and responsibility.
Song, as the daughter of an immigrant, carries a strong sense of obligation to her father and her future. Her journey reflects the pressure of living up to parental expectations, navigating disappointment, and balancing personal identity with family duty.
These themes add emotional weight to the story, grounding the supernatural elements in real, relatable struggles.
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🗡️ Mystery, Twists, and Tension
The murder investigation drives much of the plot, giving the book a fast-paced, thriller-like structure. As Song and Kiet dig deeper, the story reveals hidden layers about the university and the world they live in.
And when the twist hits—it’s one you likely won’t see coming.
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✨ Final Thoughts
When Shadows Burn stands out with its unique premise, strong character dynamics, and blend of gothic academia with paranormal mystery. The combination of demons, investigation, and emotional depth makes it an engaging and memorable read.
If you enjoy dark academia, demon lore, detective-style fantasy, and character-driven stories with meaningful themes, this is absolutely worth picking up.
"He who fails to exorcise his demons is sure to see them return, more ravenous than ever."
Kiet and Song are a tag team demon hunting duo who each face their own challenges on their own but when shared challenges arise, they work together and show the loyalty we all want in friendship. Kiet is funny, broody and more emotion driven whereas Song is the more practical and even tempered. When trouble arises, it causes both of their realities and futures to be questioned. Can they save each other while also saving themselves? I really hope that there will be a map of Yennington/Halberra. I would say this is a YA novel geared towards the younger side of that spectrum. Not overly intense. Zero spice. More surface level.
My main issue with this book isn't necessarily the story itself, although I do have thoughts on it. It's the writing. I know this is an advanced copy not the final product but it affected the story and felt like it needed to be addressed. I really don't want to assume it's AI if it isn't. But I have NEVER seen so many em dashes, ellipsis and colons in one book. On every single page, several times, there is an em dash (–). Sometimes multiple in one sentence. Em dashes obviously have its place in writing and I'm not saying that it shouldn't be used. But this is excessive. And distracting. It really messed with the flow of the story and how it reads. If this isn't AI, I would really hope it gets edited before release. If not just to save the story but also not diminish the authors future works.
I think this story overall is good. I like the concept of the demons and exorcists and being schooled in that. It was interesting take and the academia vibe with it was intriguing. I think I would've liked to have seen a little more depth to it and not so surface level. I feel like Kiet is the only character that has substance. Song felt sort of flat and and lacked character development. Whereas with Kiet we see him struggle with a lot of different emotions and situations. But it didn't necessarily feel like Kiet was the main character of this book, it felt more like a duo much like their dynamic. Which I enjoyed. The different POV's was great and I feel rounded out the story. I loved that the cat was basically an employee LOL I think there's a lot of potential for this story and I think it suits its target audience and has potential for a good series. As it stands right now, it's not for me. But I would probably reading something else from this author.
Thank you to Macmillan Children’s Publishing Group and NetGalley for the ARC!
Thank you to Netgalley for providing me with this ARC.
I want to start off by saying that I really enjoyed the concept behind this story. It brought back memories of Soul Eater and Deadman Wonderland. The concept of slayers and callers is really cool, especially when the callers inhabit an interesting space of having a disability but that disability making them even more valuable than slayers. Kiet and Song have a great dynamic and the ending was definitely agonizing in that I wanted more.
On to the negatives: I found Song's character arc a bit, lacking. There was so much emphasis placed on how she felt like a failure of a daughter for "making" her father have to work at a flower shop to support her and her mentality of getting her degree even if it kills her, but not much emphasis placed on why or where she got the idea that her father was suffering. It makes the end where her father reassures her a little less satisfying because it meant that Song basically talked herself into destroying her body with no provocation. I think tweaking some scenes to show her father making offhand comments about his dreams before the flower shop would have helped make that part of the plot more satisfying for me.
I at times felt like there were too many characters. Wes for example felt like a character the author wanted us to care about but we weren't really shown why. Why did Song and Kiet think so highly of him? Jillian's motivations are basically not explained. Why was she so loyal to Hiero? She doesn't seem to serve any purpose other than to do things offscreen when Hiero is otherwise occupied.
Phenbridge didn't feel like much of a real place. It looms over the entire story as the symbol of everything Kiet hates but it has no real presence. It also strained my suspension of disbelief that it's apparently an open secret that exorcists will try to *poison* each other to gain an edge in classes. Considering these are classes where there is a nonzero chance of fatal injury, it's amazing that there are any exorcists left. Why is Phenbridge so competitive anyways? Surely 100 competent exorcists is better than 5 highly talented ones?
This one is a small gripe but the story includes a lot of little throwaway lines to let you know this is not our world from the days of the week being changed to the year being in the 1300s while having cars and phones but I wanted to know more about the world. Though I'm sure we'll learn more in the sequel.
To conclude, I would rate this at a 3.75 out of 5 and I'm looking forward to reading the sequel.
This entire review has been hidden because of spoilers.
***Thank you to the author, the publisher and NetGalley for an advanced copy in exchange for my honest review.***
⭐️⭐️⭐️.5
As a huge fan of Supernatural and the Mortal Instruments series, I was excited to read When Shadows Burn. It's a dark fantasy novel set at a demon hunting university. It follows the hunting duo Kiet (a demon caller) and Song (a demon slayer) as they investigate a mysterious demon on campus and the death of Kiet's brother.
The book begins fast throwing you into the world as Kiet and Song track a demon. I wish the author had spent more time describing the world. I was confused if it was a modern society or an older society. It was also tough to understand how blood was used as a weapon. By midway through the book, it made more sense, but I was loss in the beginning.
I enjoyed the friendship between Kiet and Song and how that relationship developed throughout the story. They both fought to overcome their own inner demons, and it felt relatable. Kiet had strong character development as he tried to discover his place in the world and his family.
The family dynamics was an interesting component of the story. Kiet's rebellious nature stemmed from his family and the school. I really enjoyed seeing his family relationships adapt throughout the story, but I felt like his mom was left out. She should have been more included, so I hope her character is explored more in the next book.
My biggest issue with the novel was the repetitive use of the word "twin." It was very distracting how this word was used as a substitute for God/swear word so many times. I also struggled with the pacing. The investigation would hit a stride, and then school life would take over. I wish these were better intertwined.
Overall, I enjoyed it. The ending was intense and made me like it more as it left on a cliffhanger (opening the door to the next book). I will be completing the duology when the next book is released.
This book was okay. By the end, I was very curious about what would happen, and I enjoyed the set up for the next book.
Things I didn't like:
-I wanted more characterization for both main characters. Kiet and Song were interesting, but they needed more development individually and then more development in their relationship. I did appreciate the flashback sequences where we were able to see some of their earlier interactions.
-The setting was confusing. I was uncertain of the time period--it felt modern at times and old at times. I never did have a clear idea of the intended era. Usually this is not a problem, even in fantasy books.
-The deities in this book were confusing, and they kept saying, "twins" about everything. Evidently the deities are twins, but I kept wondering who the twins were.
-I didn't enjoy this particular Dark Academia vibe. It felt stilted at times. Sometimes they felt like young people at university, and other times, they seemed to have more freedom.
Things I liked:
-I thought the family dynamics for both main characters were interesting and relatable. Chief Sren was an interesting character as well--very nicely written.
-I enjoyed the mystery surrounding a sibling's death. Kiet's determination to get to the bottom of the situation was understandable.
-I enjoyed the plot twist (that I won't ruin here), but I was entirely surprised and then became more curious about the whole story as a result.
Thank you Macmillan and Netgalley for providing this digital ARC for review. All opinions are my own.
Thank you to NetGalley, the publisher, and the author for an advanced copy in exchange for an honest review.
I went into this really interested in the premise, especially with the idea of a demon-hunting duo set within a dark academia environment. The story starts off very action-packed, immediately throwing you into the world as Kiet and Song track and confront demons together.
One of the standout elements for me was the way the demons were portrayed. I found that aspect of the world really interesting, and it gave me slight Shadowhunter vibes in terms of how the supernatural elements were woven into the story.
By around chapter two, there are already hints of a larger mystery unfolding, including signs of a more organized threat behind the scenes. That early setup made it feel like the story was building toward something bigger, which I appreciated.
However, I ultimately decided to DNF at 23%. While the premise and initial setup were strong, I had difficulty fully immersing myself in the story due to the third-person, multi-POV writing style. This is entirely a personal preference, as I tend to connect more with first-person narratives.
I do think readers who enjoy multi-POV fantasy, darker academic settings, and more plot-driven stories will likely find this more engaging. There is a solid foundation here, and I can see it working well for the right audience — it just wasn’t the best fit for me.
I could not put this book down once I started it. The story grips you from the very first page and keeps you hooked until the end. I especially loved how action packed it was, along with the level of detail the author used when introducing Yukei (demons) and explaining its biology and the ways slayers and callers like Song and Kiet can exorcise it. Those details made the world feel incredibly immersive. I also appreciated how each chapter contained important information that helped build the story and the world around it.
Song and Kiet are characters that readers will easily fall in love with, just like I did. They are both complex and compelling, and you can’t help but root for them and hope things work out in their favor. The “will they or won’t they” tension between them is strong throughout the book, and I feel like their slow burn relationship is going to unfold beautifully. With this being the first book in a duet, the ending left me eagerly anticipating book two.
A huge thank you to NetGalley for the opportunity to read this ARC. Vanessa Le is definitely an author I will be reaching for again in the future. I love her writing style and the way she approaches world building It felt like I was constantly discovering something new at an exciting pace.
If you enjoy stories with demons, slayers, and richly developed worlds, this is a book you don’t want to miss.
This book took me a while to get through but WOW was it worth it!
The world-building is so complex and intricate that at times I almost felt like I should be taking notes on it. Vanessa Le is a master of detail, every word of this book was so well thought-out that its universe felt real and tangible.
Kiet and Song, if possible, felt even more real. They're incredibly complex characters and their struggles (while played out in a fantasy world) put words to the same fears and doubts that I think almost everyone has at some point in their life. Their slow burn was probably one of the best I've ever read—I LOVE when slow burn is actually slow burn, not just a sudden switch flip midway through.
Le's writing is fast-paced and descriptive, and there were quite a few lines where I had to take a step back and stare at it for a minute because it was just *that* beautifully worded.
There is so much more I could say about this book but I think it's one of those things best experienced firsthand. I cannot recommend it enough and can't wait to see what Le does with the sequel!
As always, a huge thank you to NetGalley and the publisher for allowing me an ARC of this book! All opinions are my own.
Thank you to Macmillan Children’s Publishing Group and NetGalley for the ARC!
This was a 4.5 ⭐️ for me. Really really fun read. Le has created a very interesting world here for readers to explore and something that I can’t wait to see built out in the future even more. The dynamic of Slayers and Callers is certainly a unique route to take in this genre but it really works and the interactions between protagonists are a lot of fun.
Speaking of the protagonists, Kiet and Song, they are both extremely fleshed out and developed characters who make you really care about their story as it unfolds.
Great read and something people should definitely be looking out for when it hits shelves December 1, 2026
So, we have a unique world here - there are "demons" and these demons kill - but there is a school that trains people to be either callers and killers - now in order to kill these demons you have to have both of them - because the caller pulls these demons out of people - so possessions and the killers use their blood to get the demon.
There are classes of demons - so I want to make sure I set the scene Kiet is our caller, whose father is a dean at the university and is estranged from his family - the family has tragedy. Song is the killer.
In this we have found family, betrayal, back to life, love -that is vocalized - and returned.
This book defintely kept me on my toes - there is a battle at the end that is very impressive.
I knew this book was going to be thrilling and it did not disappoint! This story was so different from anything I’ve ever read - the demons and callers and slayers, such an awesome world. There were some good twists that I did not see coming! I will absolutely be reading the second book in this duology because I just know they’re up to no good at Phenbridge. I also want to add that although this is a “YA” book, it was just as entertaining to read as any Adult Thriller Sci-Fi Book. I also found this to be an appropriate YA rated book with nothing inappropriate. Thank you NetGalley for such a fun and different ARC opportunity!