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book cover for Byrdfyre Covenant

Byrdfyre Covenant

Let the flames begin...

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Book 1 of Byrdfyre

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Pub Date Jul 17 2025 | Archive Date Aug 10 2025


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Description

What do you get when you merge historical fiction and dark fantasy with slow-burn romance? Byrdfyre Covenant is here.

Jörð forgive and protect my little Byrd, should she cling to the earth…

My mother died on the same day my father went mad.

He tried to kill me. With his bare hands, he gripped my throat, stole my breath, meant to tear me from the world.

I survived, but I changed.

That was the beginning of the plague that devoured us.

I will be its ending.

I am Astrid, my mother's first child, promised to an odious priest and surrounded by brothers who love me to varying degrees, and I know how to save us, but no one will listen ...

No one but him.

He is mysterious foreigner, Will Green. Kind, intelligent, but strangely changeable, he stands by my side when others won't, whispers in my ear as we bury our dead, who are mounting up by the day, by the very minute. He tempts me with ideas about what we owe one another. I trust him, because Will Green is good and I believe in good, and in sacrifice, even in myself. And we do need to act ... but sometimes his eyes burn with a strange flame, and I'm not sure he isn't more than he seems.

Fire destroys, but it also tempers. It makes things strong. If I can harness it, and if I am careful, it may be our salvation.

Byrdfyre Covenant is about desperation and loss, unbreakable bonds and old Gods, and a young woman locked into a deal with a dark stranger that stole her humanity and chained her to him for eternity. This is a series starter that will stay with you. Expect heart-pounding action, dark horror and real-history elements, twists and turns you won't expect, and a chilling and heart-rending cliffhanger ending ... because there's always more to the story.

Jayne Starwing is a new pen name for seasoned author Olivia M. Jacques (Women's Fiction, The Madisons), who is also the co-author of The Lightbringers series (Fantasy Romance). Byrdfyre Covenant merges Literary Historical Fiction and Dark Fantasy and will appeal to fans of V.E. Schwab (The Invisible Life of Addie LaRue, Bury Our Bones in the Midnight Soil), Audrey Niffenegger (The Time Traveler’s Wife) and Sarah J. Maas (Throne of Glass).

Trigger Warnings: As this novel is set around the time of the Black Death's arrival in Norway in 1349, there is a significant amount of death and gore, including child death. The text also contains violence against women and misogyny, religious trauma, self-flagellation, murder and violence, and survivalist themes, including potential starvation, hints at future cannibalism, and more. Please read responsibly.

What do you get when you merge historical fiction and dark fantasy with slow-burn romance? Byrdfyre Covenant is here.

Jörð forgive and protect my little Byrd, should she cling to the earth…

My mother...


A Note From the Publisher

Agency Press is running a typo catch contest as well as a preorder incentive giveaway in relation to this title. Details are available in the Press Kit. These contests have been extended for Netgalley ARC readers until August 10th. If you order/preorder or send any typo catches before that date, you will still be entered to win.

Agency Press is running a typo catch contest as well as a preorder incentive giveaway in relation to this title. Details are available in the Press Kit. These contests have been extended for...


Advance Praise

⭐⭐⭐⭐⭐ Full of rich detail and unimaginable horror, Byrdfyre Covenant mingles religious trauma, Norse folklore and ethereal romance in a unique and haunting historical fantasy plague tale. Dark and disturbing, this book will have you throwing your Kindle, covering your eyes, and yet secretly wanting more. -Briar Boleyn, Best-Selling Author of On Wings of Blood (Bloodwing Academy & Queen of Roses Series) 

⭐⭐⭐⭐⭐ This deserves 10 stars. Wow. Just holy wow. I loved this book so much. It is absolutely brilliantly written. Mam, I need the next book..soon, thanks. 🫶🫶🫶 I love Jayne Starwing. -Cass Parrish, Goodreads

⭐⭐⭐⭐⭐ I just finished Byrdfyre Covenant by Jayne Starwing (thanks for the early ARC!) and I’m still thinking about it. Obsessed. Can’t believe I get to be first with my review because this text blew my mind. This book is a beautifully written blend of historical fiction, literature, and romantasy, with slow-burn romance that really hit all the right notes for me. The story follows Astrid, a reluctant survivor of the Black Plague. Throw in a martyr of a mmc, and an Old Norse God and you get a recipe for greatness! Incredible book. Truly. I am FERAL for more. -Kate Carrington, Goodreads

⭐⭐⭐⭐⭐ I was lucky enough to receive an ARC of this book, and I honestly didn’t know what to expect going in. What surprised me most was the emotional ride I took with the FMC. I loved her strength and persistence, but there were definitely moments I wanted to shake her for not seeing what was right in front of her! That push and pull made her feel real, and it’s exactly what kept me hooked. The mix of historical fiction with just a sprinkle of romance was a perfect combo. And a cliffhanger ending? I’m definitely hoping there’s more to come! -Kellie, Goodreads

⭐⭐⭐⭐⭐ Full of rich detail and unimaginable horror, Byrdfyre Covenant mingles religious trauma, Norse folklore and ethereal romance in a unique and haunting historical fantasy plague tale. Dark and...


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Available Editions

EDITION Ebook
ISBN 9360255637000
PRICE $4.99 (USD)

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