H.F. Day — Norse Mythology & Viking Dark Fantasy Author

Welcome to Leifthasir

The gods have abandoned the world. Their magic lingers only in whispers, in shattered ruins, and in the lost sword of Freyr. Find out more in the Viking Dark Fantasy series "Leifthasir's Saga"

Sideways dragon in norse style

New & Upcoming Books

A Tale of Scorched Ash & Elm

Release date December 2, 2025

The Sea & The Stag Horn

Release date March 3, 2026

Inheritance of Fire

March, 2027

Latest Releases

Child of Ash Heir of Fire

A Viking princess is supposed to give her father a grandson—not become the warrior his men would follow into battle.

Her husband resents the life marrying her cost him. Her best friend is becoming her political enemy. Her kingdom's ancestral enemies are invading. And when she finally goes to war, her husband starts dreaming of her as a Valkyrie queen.

Everyone wanted Indunna to give them the next king. They should have been more worried she might become one.

Viking Dark Fantasy Novel

The World of Leifthasir

Leifthasir is a land of myth and magic, shaped by the remnants of divine influence and mortal struggles. Inspired by Scandinavian and Viking cultures, it is a world where gods once walked among men and elves, leaving relics of their power, some revered, some fought over, and some forgotten.

Leifthasir’s history is woven with Norse mythology, centered around the creation of the world from Ymir’s remains and the influence of gods like Freyr and Freya. The elves of Alfheim, once blessed with long life and magic known as Seidr, lived in harmony under Freyr’s guidance. However, when the gods departed for Asgard, the world began to decay, its magic waning, its creatures dwindling, and its lands falling into chaos.

One of the last divine relics left behind was Sumarbrander, a sword imbued with Vanir magic entrusted to the elves. This weapon, both a gift and a burden, became a coveted artifact that ultimately led to Alfheim's downfall.

Looking for more Viking Dark Fantasy and Norse Mythology?

Sideways dragon in norse style
Indie Author H.F. Day holding a teacup

Meet H.F. Day

H.F. Day is an author and illustrator of myth-rich fantasy grounded in the Viking Age. Her debut novel, A Tale of Scorched Ash and Elm, braids the intimacy of family drama with the sweep of legend, drawing closely from the Eddas and Sagas. A lifelong student of Norse history and material culture, H.F. Day cares about getting the small things right; ships and seasonal light, law and longhouses, so the big things feel true. She has traveled widely and credits her inspiration to favorite locations such as Ireland, Spain, Romania, and the Rockies for shaping her eye.

Sumarbrander by indie author H.F. Day

Leifthasir

Learn more about the world of Leifthasir and the research involved in its creation.

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The Characters

Meet the Cast of A Tale of Scorched Ash & Elm, H.F. Day's debut novel.

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The Art

View concept artwork for the novel and the world of Leifthasir.

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Join the ARC Team

Sign up today to become an ARC reader for H.F. Day's upcoming releases.

Dragon with sumarbrander by indie author H.F. Day
Cover for the viking dark fantasy novel child of Ash heir of fire by H.F. Day, features a dark blue background with a woman in shadow standing in flame with viking knot work on either side.

Reviews

What is Viking Dark Fantasy?

Viking dark fantasy blends the gritty reality of historically based fantasy with the rich tapestry of Norse Mythology and the Sagas. The World of Leifthasir is built on research and language deep dives into the world that Viking raiders inhabited in the 10th century and before. There are even little easter eggs for those who love historical sagas in most of the books.

My thoughts on Viking Dark Fantasy & Norse Mythology (plus updates)

Viking Weddings Let It Be Witnessed

By H.F. Day

The Real History of Norse and Viking Wedding Customs When I was fourteen years old, I fell in love with a myth. Specifically, I fell in love with the Skírnismál — the Old Norse poem in which the Vanir god Freyr, overcome with longing for the Jötunn woman Gerðr, sends …

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Homosexuality in the Viking World vs. Leifthasir

By H.F. Day

The Viking world did not think about sexuality the way modern readers do. Despite popular media depicting the ancient Norse as an egalitarian wonderland of acceptance and diversity, the truth is that history doesn’t match that picture. When I began writing A Tale of Scorched Ash and Elm I knew …

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ARC Sign Ups for Child of Ash Heir of Fire

By H.F. Day

ARC Request — Child of Ash, Heir of Fire H.F. Day · Advance Review Copy Request Child of Ash, Heir of Fire By H.F. Day Her marriage was arranged to save a kingdom she was never meant to rule. Then she discovered the power living in her blood. A Viking-era …

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Explaining Seidr

By H.F. Day

Historical Seiðr vs. Seidr in Leifthasir: Norse Magic, Myth, and Fantasy Worldbuilding Let’s dive into Seiðr in the world of the ancient Norse, and Seidr as we see it in Leifthasir. What Is Seiðr in Norse History? In Old Norse tradition, seiðr was a form of magic associated with prophecy, …

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Indie April

By H.F. Day

To celebrate Indie April, I’m compiling a list of my favorite Indie Reads this year! Be sure to check out these amazing authors, and let me know your favorite indie author in the comments. (Self Recs definitely welcome!) The Knights of Enar Series By Juliette Caruso Currently sitting at three …

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Excerpt from Prophecy of Ash

By H.F. Day

Prologue The stillness of the night was cut by screaming, a blood-curdling cry of pain and desperation.  The King and his son-in-law sat in the great hall of Fjord’s Hold, listening as the screams echoed through the palace.  “I have to say,” the King mused as he sipped his beer. …

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Upcoming Event- Folk & Fable Co

By H.F. Day

Join me for a special book signing event partnering with indie bookstore Folk & Fable Co. in Raleigh, North Carolina. I’ll be available to chat, sign books, and support indie publishing during a cozy afternoon of stories and community. Date: Saturday, March 21st, 2026Time: 2:00 PM – 4:00 PMLocation: Folk & Fable Co., Raleigh, …

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The Sea & The Stag Horn Releases Tomorrow (March 3)

By H.F. Day

A Viking Fantasy Romance Novella with Teeth Tomorrow, March 3, The Sea & The Stag Horn goes live on Amazon, and I’m equal parts excited and feral about it. This is a Viking-inspired fantasy romance novella built for readers who love mythic atmosphere, court politics, sharp-edged devotion, and a romance …

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ARC Sign Ups – The Sea and the Stag Horn

By H.F. Day

Want to have an advanced review copy of the prequel novella to A Tale of Scorched Ash and Elm? Sign up and get your copy Feb 1!  About The Sea and the Stag Horn Anya, daughter of Alfheim’s regent king, is bound in an arranged marriage to her childhood friend, …

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Review “The Witch’s Heart”

By H.F. Day

I recently picked up “The Witch’s Heart” by Genevieve Gornichec at my local library. I had been recommended this book years back by a friend, but I was never able to find it.  My first experience with Gornichec’s work was in “The Weaver and the Witch Queen,” which I very …

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