11 New Fantasy Books Releasing in September 2026 You Need to Read

September is shaping up to be one of the best months of 2026 for fantasy readers.

Fantasy is always one of the genres I pay the most attention to, but this particular group of releases feels especially strong. There are dark academia mysteries, grimdark adventures, magical heists, reformed villains, dragons, vampires, magical swords, and even disgruntled henchpeople trying to unionize.

More importantly, many of these books feel different from one another.

Some are new novels from authors I already trust, including Leigh Bardugo and T. Kingfisher. Others come from authors I haven’t read as much but immediately caught my attention because the premise sounds too good to ignore.

These aren’t ranked. Instead, these are the new fantasy books releasing in September 2026 that Books of Brilliance is most excited to read.

New Fantasy Books Releasing in September 2026

• Unbearable by A. Lee Martinez — September 1
• Dragons, Heists, and Other Retirement Plans by Meg Pennerson — September 1
• Absolon Creed by R.S. Ford — September 8
• Morfran, Dark Lord Reformed by S.B. West — September 8
• Dead Beat by Leigh Bardugo — September 15
• Bodies of Magic by Freya Marske — September 15
• The Gates of Midnight by Helene Wecker — September 15
• Bright and Broken Things by Ryan Graudin — September 22
• A Complement of Scoundrels by S.V. Lockwood — September 22
• The Henchperson’s Guide to Unionizing by Marshall J. Moore — September 22
• Baldur’s Gate 3: Astarion by T. Kingfisher — September 29

Unbearable by A. Lee Martinez

Release date: September 1, 2026

Give me a fantasy novel about a magical sword and you’ve already gotten my attention.

Unbearable follows Ortiz, a man who isn’t exactly anyone’s idea of a great hero. While digging what could become his own grave, he discovers a magical sword. The problem is that this isn’t simply a powerful weapon. The sword is helping prevent an apocalyptic dragon from destroying the world. Baen publishes the 208-page novel on September 1.

I love the twist here. Magical swords are one of the oldest fantasy tropes around, but putting an incredibly important weapon into the hands of someone who is wildly unqualified to wield it makes the premise much more interesting.

A book about a magic sword is almost always fun, and Martinez appears to be approaching the trope from a much different direction. Instead of another chosen hero destined to save the kingdom, we get someone who seems like the last person who should be responsible for saving anything.

That alone makes Unbearable one of the September releases I’m most curious about.

Dragons, Heists, and Other Retirement Plans by Meg Pennerson

Release date: September 1, 2026

Even the title of this book tells you exactly why it belongs on the list.

Katherine and Imogene have supposedly left their criminal careers behind. They’ve traded the outlaw life for a much quieter retirement until an old friend draws them back toward unfinished business involving one last heist. There are also dragons, cats and, apparently, dragon-cats. Forever publishes the 352-page fantasy on September 1.

We’ve gotten a lot of cozy fantasy novels over the past few years, which means authors have to find increasingly creative ways to stand out. Making the protagonists retired criminals who get pulled into another heist is a fun twist on the genre.

There’s something inherently entertaining about characters who believe their adventuring days are over and quickly discover that retirement isn’t going according to plan.

Throw in dragons and a heist and I’m sold.

Absolon Creed by R.S. Ford

Release date: September 8, 2026

Not every fantasy book needs to be cozy.

Sometimes you want something dark, gritty and filled with battles. Absolon Creed looks like exactly that kind of book.

The story takes place in Bastion, a crumbling city threatened by eldritch monsters, political corruption and violence. Absolon Creed is a legendary fighter belonging to the Order of Draken, a brutal knightly order charged with protecting the city. When two nobles are murdered, Creed is forced to investigate alongside inexperienced initiate Guenivar Blackmere. Orbit releases the novel on September 8.

This sounds like grimdark fantasy with a mystery at its center, which is an excellent combination.

But what interests me most is the promise of action. Creed sounds like exactly the type of hardened fantasy character who will spend much of the novel fighting monsters, criminals and probably a few people who thought challenging him was a good idea.

Dark, gritty and seemingly packed with fights, Absolon Creed has the ingredients to be a lot of fun.

Morfran, Dark Lord Reformed by S.B. West

Release date: September 8, 2026

Of every premise on this list, Morfran, Dark Lord Reformed may be my favorite.

Morfran used to be the Dark Lord of Ruthven. Eventually, he gets tired of being evil and decides he’d rather disappear and live peacefully as a goat farmer. Unfortunately, his past isn’t willing to leave him alone.

Things become even stranger when Morfran accidentally finds himself involved with a rebellion fighting against the kingdom’s Dark Lord.

The Dark Lord they want to overthrow is technically him.

Ace publishes the 368-page novel on September 8.

That is one of the best fantasy plots I’ve come across this year.

Fantasy novels constantly introduce evil rulers who must be defeated. Making the supposedly evil ruler secretly join the rebellion against himself completely flips that familiar story on its head.

The goat farming only makes it better.

I have no idea where West is ultimately going to take this premise, and that’s exactly why I can’t wait to find out.

Dead Beat by Leigh Bardugo

Release date: September 15, 2026

Leigh Bardugo is essentially an automatic addition to the reading list at this point.

Dead Beat is the third and final book in the Ninth House trilogy, bringing Alex Stern’s story to its conclusion.

After the events of the previous books, demons are moving through New Haven and Yale while Alex and her allies attempt to prevent an even larger catastrophe. The story also brings back Darlington while digging further into Yale’s secret societies, Lethe House and Alex’s own mysterious past. Flatiron Books releases the 496-page finale on September 15.

Bardugo has shown repeatedly that she knows how to create fantasy worlds that feel dangerous, atmospheric and lived-in. The Ninth House books also occupy an interesting space between dark academia, fantasy, horror and supernatural thriller.

And when you’ve already invested two books into Alex Stern’s story, there’s no way you’re missing the ending.

Leigh Bardugo is a must-read author for me, making Dead Beat easily one of the biggest fantasy releases of September.

Bodies of Magic by Freya Marske

Release date: September 15, 2026

If someone pitched me “Donna Tartt meets fantasy,” I would probably pick up the book immediately.

That’s the feeling I get from Bodies of Magic, a dark academia fantasy centered around students training to become magical healers.

At the Academie of the Grand Duchy of Sieuxerr, mage-healers spend years preparing for an infamous five-day Grand Exam. But when one exam group discovers the body of one of the academy’s most brilliant students, passing the exam suddenly becomes only one of their problems.

The students have five days to solve a murder, survive their examination and uncover secrets that could have much larger consequences. Tor Books releases the novel in the United States on September 15.

Dark academia and murder mysteries work incredibly well together because the setting naturally creates secrets, rivalries, competition and obsession.

Adding magical medicine makes this world even more distinctive.

This feels like one of those books that could appeal equally to fantasy readers and people who normally gravitate toward literary campus novels and murder mysteries.

The Gates of Midnight by Helene Wecker

Release date: September 15, 2026

Some sequels feel much longer awaited than others.

The Gates of Midnight is the third and final novel in Helene Wecker’s The Golem and the Jinni trilogy, arriving years after The Hidden Palace.

The new novel returns to Chava and Ahmad while moving the story into New York in 1930. Wecker’s official site confirms that the book concludes the trilogy on September 15.

This is easily one of the releases I’m most excited about because the series is already amazing.

Wecker’s combination of historical fiction and mythology makes these books feel completely different from standard epic fantasy. The supernatural elements are important, but so are immigration, identity, friendship and the constantly changing city surrounding the characters.

For readers who have been waiting to see how this story ends, September 15 can’t arrive soon enough.

Bright and Broken Things by Ryan Graudin

Release date: September 22, 2026

Bright and Broken Things may be one of the hardest books on this list to easily categorize, and that’s part of its appeal.

The novel follows Ezra Bright, a young scholar who returns to London after World War I and becomes involved with a glamorous social circle known as the Bright Young Things. Beneath the parties and elaborate scavenger hunts, however, lies something much stranger involving magic, a secret society and an ancient Egyptian artifact.

Redhook releases the 384-page novel on September 22.

The 1920s London setting alone is enough to differentiate it from most fantasy novels hitting shelves right now.

Add Egyptology, secret magical societies and postwar trauma and you have something that feels difficult to compare directly to anything else.

That originality is exactly what I’m looking for when deciding which new fantasy novels deserve attention.

A Complement of Scoundrels by S.V. Lockwood

Release date: September 22, 2026

Heist fantasy has produced some fantastic books over the years, and A Complement of Scoundrels looks ready to add another one.

Myria Cadessa should have become incredibly wealthy after cracking the Elysius Vault. Instead, she was betrayed, her crew fell apart and she ended up in prison.

Now she’s free.

Naturally, revenge requires putting the crew back together and attempting an even more dangerous heist.

Bindery Books lists A Complement of Scoundrels among its releases, with the book scheduled for September 22.

There are few fantasy premises more reliable than assembling a group of morally questionable characters and asking them to steal something seemingly impossible to steal.

But the betrayal angle makes this especially promising. Myria isn’t simply chasing money. She’s trying to fix what happened to her crew while getting revenge on the person responsible.

I’m always interested in a good fantasy heist, and this is one of my most anticipated ones of 2026.

The Henchperson’s Guide to Unionizing by Marshall J. Moore

Release date: September 22, 2026

Sometimes a title alone deserves points for originality.

The Henchperson’s Guide to Unionizing follows Igor, the assistant to a demanding Doctor whose work involves graves, body parts and experiments involving the creation of life.

After another angry mob forces Igor and the Doctor out of town, they move to Ravenwald Manor. But the story eventually brings together people who have spent their lives serving powerful masters and asks what happens when the henchpeople finally decide they’ve had enough.

Bantam releases the 384-page novel on September 22.

This sounds ridiculous in exactly the right way.

Fantasy frequently focuses on heroes and villains but doesn’t spend nearly enough time considering what life must be like for the poor assistants who actually have to clean up after all the evil experiments.

A fantasy novel about henchpeople unionizing promises plenty of laughs while also offering an easy way to play with classic monster and gothic-fiction tropes.

I’m definitely curious to see how Moore pulls it off.

Baldur’s Gate 3: Astarion by T. Kingfisher

Release date: September 29, 2026

The month ends with one of its biggest wild cards.

T. Kingfisher is writing an official Baldur’s Gate 3 novel centered around Astarion.

Do we really need more information than that?

The novel explores Astarion’s life before the events of the video game, when he is still trapped in servitude to vampire lord Cazador Szarr. A potential opportunity for freedom emerges when the blood of a dead god becomes the prize at the center of a dangerous competition.

Random House Worlds releases the 272-page novel on September 29.

Kingfisher’s novels are usually must-reads for me because she has such a distinctive approach to fantasy. Her books can be funny, strange, unsettling and surprisingly emotional without ever feeling interchangeable.

Astarion also happens to be one of the most popular characters to emerge from Baldur’s Gate 3, so giving his story to an author as creative as Kingfisher feels like an inspired pairing.

Even readers who don’t normally pick up video-game tie-in novels may want to give this one a chance.

Which September 2026 Fantasy Books Are We Most Excited About?

There really isn’t one dominant fantasy trend across these releases, and that’s what makes September so exciting.

Readers who want darker fantasy have Absolon Creed and Dead Beat. Readers looking for humor can turn toward Morfran, Dark Lord Reformed, Unbearable and The Henchperson’s Guide to Unionizing. Heist fans get both Dragons, Heists, and Other Retirement Plans and A Complement of Scoundrels.

Then there are books that are much harder to categorize.

Bodies of Magic combines dark academia, magical healing and murder. Bright and Broken Things mixes 1920s London with Egyptology and secret magical societies. The Gates of Midnight continues one of modern historical fantasy’s most distinctive series.

And Baldur’s Gate 3: Astarion combines one of fantasy gaming’s most recognizable recent characters with T. Kingfisher.

If I had to narrow this list down to the books I’m most curious about purely on premise, Morfran, Dark Lord Reformedmight take the top spot. A retired Dark Lord becoming the leader of a rebellion against himself is simply too good of an idea to ignore.

But there are plenty of potential standouts here.

September 2026 is giving fantasy readers a little bit of everything, and my TBR pile is about to get much bigger.

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