Today on the site I’m delighted to welcome Esme Symes-Smith to reveal the cover of the fourth and final book in the MG fantasy Sir Callie series, Sir Callie and the Final Stand, which releases October 14, 2025 from Labyrinth Road/PRH! Here’s the story:
In the conclusion of this bestselling fantasy series a nonbinary knight-in-training, a reluctant crown prince, a fierce young witch, and her resilient twin brother must fight for the heart of their kingdom against tyranny, once and for all.
Helston and its champions have been torn apart by war. Finally reunited after being scattered across the realm fighting personal battles, Callie, Elowen, Edwyn and Willow must prepare to step into the roles they’ve been training for: Champion, Witch, Knight and King.
Even if it feels like their best will never be enough to conquer the infection of hate that has spread across Wyndebrel, even when their numbers seem so small compared to the might of their enemies, they must hold true to their mission: to create a better and safer realm for everyone.
With the aid of Eyrewood, Fairkeep, and the dragons, they are as ready as they’ll ever be to ride on Helston and Dumoor, to confront the newly crowned King Peran and the Witch Queen, and finally define what peace truly means. And there is a single truth Callie and friends must cling to: The battle is still worth fighting even when victory seems impossible.
Before we get to the cover, here’s a note from author Esme Symes-Smith:
Dearest Readers,
All the way back in the beginning, I promised you a happy ending, and a light at the end of the darkness. Even though SIR CALLIE is a fantasy story full of magic and dragons, it has always been important to me that it feels real.
There were many times in writing where a happy ending felt impossible, and I struggled to believe in it for myself. Of course, as the author, I could give my characters a Happily Ever After in just a few words, but I wanted it to feel real. I wanted to leave you with the certainty that they’re going to be okay, not just in the last few pages, but long after the book is finished.
It’s hard to believe in happy endings right now, when everything I know to be good and true is ignored in favor of all the things I know to be bad. But I have come to learn that I am not at the end of my story, only the dark middle when everything feels hopeless and it would be so much easier to quit than to keep fighting. I feel the way Callie did, and Willow and Elowen and Edwyn. I feel like a kid in a grownup’s world, witnessing all the wrong and trying to be heard. It feels like a battle that I keep losing, over and over.
But, you know what? I’m going to get up and fight again, even if I lose. I’m going to keep speaking, even if no one hears me. And I’m going to keep believing that my story only ends when I’ve won. I’m just not at that part of the story yet.
Throughout my journey with SIR CALLIE, I have been reminded so many times why the fight is worth fighting, and what the happy ending looks like. It’s in the fierce hope of the readers, and it’s that hope which keeps my own kindled.
Everyone’s journey is their own, everyone has their own way of being a hero, and everyone’s happy ending is a little bit different with a single commonality: the right to live as yourself with those who see you and love you, all the way through.
Thank you for giving me hope.
Be brave, be kind, be you.
Love, Esme Symes-Smith
And here’s the fierce cover, illustrated by Kate Sheridan!
Bio: After cutting their teeth on a steady diet of fan fiction in the Southwest of England, Esme Symes-Smith wandered north to Wales for their degree in literature and creative writing, then promptly migrated to Missouri after meeting their wife on Tumblr.
In their spare time, they take care of the next generation as a preschool teacher, and run their local chapter of Good Books, Young Troublemakers.
Kat Hillis is an author of queer speculative fiction full of silly jokes and twisty plots. A southerner now living in Alabama, she’s a lifelong fan of vampires, murder, and puns. When she’s not writing or reading, she’s gaming, drawing, or making handcrafted soaps.
Rosiee Thor began their career as a storyteller by demanding to tell their mother bedtime stories instead of the other way around. Now, they write stories for all ages, including young adult novels Tarnished Are The Stars and Fire Becomes Her, the picture book The Meaning of Pride, and tie-in novels for franchises like Life is Strange and Firefly. They live in Oregon with two cats, a dog, and an abundance of plants.
Zachary Sergi is the queer author of Major Detours and nearly a dozen works of Interactive Fiction, including the Heroes Rise and Versus series. Zachary was raised in Manhattan, studied Creative Writing at Regis High School and the University of Pennsylvania, and now lives in Los Angeles with his husband, where he also writes for television. Learn more at 
Lev Rosen writes books for people of all ages, including the Evander Mills series, which began with the Macavity Award winning Lavender House (Anthony finalist, Lambda finalist, Best Book of the Year from Buzzfeed, Library Journal, Amazon, Bookpage, and others) and continued with The Bell in the Fog, (Publisher’s Weekly Editor’s Choice, Best Book of the year from Amazon, CrimeReads and Autostraddle). His most recent YA novels are Emmett (Best Book of the year from Kirkus and Amazon), Lion’s Legacy (Best Book of the year from Booklist and the New York Public Library) and Camp (Best Book of the year from Forbes, Elle, and The Today Show and others). The third Evander Mills mystery, Rough Pages, will be out in fall 2024. He lives in NYC with his husband and a very small cat. You can find him online at LevACRosen.com and @LevACRosen
JJ Clapton is a queer, autistic writer of science fiction and fantasy across multiple age ranges. Originally from London, she grew up retreating from life into the stories in her head. When she became sick with a chronic illness as a teen, she relied on the stories to help her escape. After more than half her life spent somewhere between housebound and bedbound, stories have been a constant companion and light even in the hardest of times. JJ loves to write stories in which characters like her exist and have adventures even if she doesn’t get to have many herself. Apart from being an avid reader, she loves craft, watching sports, and stimming to music. She now lives in Lanzarote where she enjoys meowing at all the local cats (of which there are many!). And has a lovely, vicious, cute little cat of her own called Rocky.
Aoibh Wood is the author of the Cait Reagan series of lesbian urban fantasy novels and the #1 bestselling “The Senator’s Widow,” which tops the Amazon Queer Thrillers chart. She lives in the Boston Metro Area with her wife and their orange tabby, who looks suspiciously like Jabba the Hutt.
