Book Review: The Unicorn Hunters by Katherine Arden

The Unicorn Hunters by Katherine Arden

Mogsy’s Rating: 4.5 of 5 stars

Genre: Fantasy, Historical Fiction

Series: Stand Alone

Publisher: Del Rey (June 2, 2026)

Length: 368 pages

Author Information: Website | Twitter

Every time Katherine Arden returns to writing for adults, I remember why I’m captivated by her writing. I’ve enjoyed her YA and middle grade novels too, but they’ve never quite hit me the same way. While they’re charming and imaginative, they always feel like they’re missing that extra layer of richness and emotional depth that makes her adult fantasy so special. However, The Unicorn Hunters captures that magic once again, with a lighter touch than, say, her Winternight Trilogy. Even though it’s still rooted in history and folklore, the historical backdrop is less imposing this time around, giving the whimsy and adventure—and even a bit of romance—more room to shine. The result is one of Arden’s most accessible novels that still delivers all the imagination and charm I’ve come to expect from her.

The story follows Anne, the young Duchess of Brittany, whose kingdom stands on the brink of being subjugated and extinguished. For years they have experienced political pressure and violence from France, and now its monarch King Charles expects her to marry him, a union that would effectively end the sovereignty of her beloved Brittany. Determined to protect her homeland, Anne and her advisors secretly arrange a proxy marriage to Maximilian of Austria instead, cooking up an elaborate plan to buy time for her would-be husband and his army to march to her defense. Thus, a unicorn hunt is devised, to be held in the legendary Forest of Broceliande, where even France’s diviners will be unable to pierce the veil of the future.

Of course, what was meant to be little more than a political distraction quickly becomes something far stranger as, deep in the enchanted forest, Anne and her retinue experience haunted visions and other sights beyond the mortal realm. Not only do they encounter an actual unicorn, but they also rescue a mysterious stranger who has been lost to time for centuries. With the fate of Brittany hanging in the balance, Anne and her allies, including Louis, the Duke of Orléans, who was originally sent by France to spy on the young duchess, must stay one step ahead of the French, navigating one scheme after another in a desperate effort to preserve independence.

One of the things I loved best about this novel was how effortlessly Arden balances the fairy-tale whimsy with a surprisingly layered story. Even though we have magic and unicorns, the fantasy elements don’t feel decorative or superficial, growing naturally out of the historical context and lore of the land. The moment Anne leaves her court for the fabled forests you are immediately hit by the sense that the world is far richer than it first appeared. I especially enjoyed how each small detail was like a block built upon the last, giving the book a wonderful sense of exploration, possibly opening doors to older, stranger versions of history. The author’s afterword practically said as much, explaining how her ideas grew out of real historical events while imagination filled in the spaces in between.

The characters are big reason why this worked so well for me. Clever, resourceful, and not afraid to be a little deceitful, Anne is exactly the kind of protagonist I like to root for. The supporting cast is just as engaging, each bringing something different to the story, from Anne’s younger sister Isabeau and half-brother Henri to Elesbed, the peasant girl with plenty of grit. Even the antagonists were handled well. While Charles may technically be the king, it’s his sister Marguerite who is the real power and brains behind the French throne, and seeing two formidable women pitted against each other made for an interesting new kind of dynamic. And then there’s Louis. I thought the romance between him and Anne was beautiful and sweet, despite or perhaps because of their complex loyalties. It also developed just gradually enough to add a bit of heart to the overall conflict without feeling forced.

All in all, The Unicorn Hunters was just plain enjoyable. Even some slight pacing issues at the end with the resolutions occurring way too fast did not bother me too much. The novel remained very readable, the prose rich and dense but still lighter than some of Katherine Arden’s previous work. There are moments that carry some YA vibes, but it matched the overall tone and didn’t pull me out of immersion. Highly recommended if you enjoy magical, imaginative, and tender romantic fantasy steeped both in legend and history. This one’s up there among my favorite reads of the year.