120,000+ Books, Games & Puzzles in-stock 🇳🇿

Overnight NZ-wide delivery 🚀 Auckland Bookstore • Open 7 days, 8:30am–5pm

Once Upon A Demon's Heart

By K.M. Moronova
0.0 (0 reviews)
3.87 goodreads logo

Ratings/reviews counts are updated frequently.

Check link for latest rating. ( 14,675 ratings, 2,963 reviews)
Brief Description
From USA and New York Times bestselling author K.M. Moronova comes a delicious arranged-marriage romantasy. In a world ravaged by war and ruled by vengeful gods, love is both a weapon and a curse... Haunted by her role in a massacre that reignited an ancient war,... Read More
Format: Paperback / softback
Save 20% Off
Savings are calculated from our regular price of $24.99 compared to the current price of $20.00.
$2000
Elsewhere:
$2800
On Sale
in Welcome Serena Sale until 7 Oct or while stocks last
OVERNIGHT NZ-WIDE DELIVERY

Found a better price? Request a price match

Book Hero Magic formatted this description to make it easier to read. While it's new and still learning, it may not be perfect - your feedback is welcome! Description

From USA and New York Times bestselling author K.M. Moronova comes a delicious arranged-marriage romantasy.

In a world ravaged by war and ruled by vengeful gods, love is both a weapon and a curse...

Haunted by her role in a massacre that reignited an ancient war, demigod knight Alira is cursed to relive her kingdom's destruction - dying again and again at the hands of the Blood Knight, a ruthless demon commander. But when the demons propose a peace marriage to end the bloodshed, Alira volunteers herself, desperate to break the cycle and save her people.

Betrothed to her enemy - who is also the lost demon boy she once tried to save - Alira must navigate a dangerous path between vengeance and forgiveness. Kalel Lornhelm, haunted by his own dark past and the monstrous hunger within him, is torn between hatred and a growing, forbidden attraction.

As assassins close in, gods interfere, and the threat of betrayal hangs over their union, Alira and Kalel are forced to confront their intertwined destinies and the curse that binds them. Can their love bring peace to Faultore, or will it doom them all?

Once Upon A Demon's Heart by K.M. Moronova is a tale of redemption, love, and the struggle against fates that seem insurmountable.

Book Details

INFORMATION

ISBN: 9781804962589

Publisher: Cornerstone

Format: Paperback / softback

Date Published: 25 June 2026

Country: United Kingdom

Imprint: Penguin (Cornerstone)

Audience: General / adult

DIMENSIONS

Spine width: 35.0mm

Width: 129.0mm

Height: 198.0mm

Weight: 500g

Pages: 336

Collections

Best Sellers at Book Hero Best Selling Books Enemies to Lovers Fantasy Fiction General Fiction Health & Wellness Horror & Supernatural In Stock Books In-Stock Fiction Books K.M. Moronova New Release Fiction Penguin Books Romance Romantasy (Fantasy Romance) Sci-Fi & Fantasy Self-Help & Personal Development Welcome Serena Sale Welcome Serena Sale: Books

About the Author

K. M. Moronova has always loved telling stories. She adores reading and writing dark fantasy with a helping of dread and romance. Often, she is found drying flowers and drinking coffee while relaxing in her garden. She loves spending time with her partner exploring the forest and envisioning more devastating stories to tell.

Also by K.M. Moronova

View all
  • Leave Me Behind
    From fan-favourite author K.M. Moronova comes a biting, suspenseful dark romance set inside an elite special ops squad. Nell is assigned to a revenge mission after her original squad is massacred, and the ruthless killer assigned as her superior has no intention of playing nice with her. From fan-favourite author K.M. Moronova comes a biting, suspenseful dark romance set inside...
    By K.M. Moronova
    Paperback
    $2399
    Elsewhere:
    $2600
    (1)
    In Stock
    Ships tomorrow
  • The Fabric of Our Souls
    The Fabric of Our Souls by K. M. Moronova is a poignant journey through pain, love, and healing. Readers describe it as "Heartbreaking, beautiful, sad, loving, healing and so much more." It's a tale so compelling that many have called it "A book I re-read over and over and over." "Completely consuming. Absolutely essential read," says another reader, encapsulating the...
    By K. M. Moronova
    Paperback
    $2799
    Available
    Ships in 4-6 weeks
  • Your Knife, My Heart
    From fan-favourite author K.M. Moronova comes a new biting, suspenseful dark romance set inside an elite special ops squad, the first in a duology. From USA Today Bestselling author K.M. Moronova comes a brand-new compelling and addictive dark romance in her Dark Forces world. Dark. Deadly. Irresistible. Cameron Mortem has a problem – he can't stop killing his partners. Officially...
    By K.M. Moronova
    Paperback
    $2400
    Elsewhere:
    $2600
    In Stock
    Ships tomorrow
  • My Blade, Your Back
    From fan-favourite author K.M. Moronova comes the second in this duology, a biting, suspenseful dark romance set inside an elite special ops squad. From USA Today bestselling author K.M. Moronova comes the explosive second instalment in her Dark Forces world—an intense and seductive dark romance that cuts deeper than ever. Broken. Lost. Unforgiven. One month after surviving the Under Trials,...
    By K.M. Moronova
    Paperback
    $2200
    Elsewhere:
    $2800
    In Stock
    Ships tomorrow
  • My Blade, Your Back
    *The limited deluxe edition comes with designed edges* From USA Today bestselling author KM Moronova comes the explosive second installment in her Dark Forces world―an intense and seductive dark romance that cuts deeper than ever. Broken. Lost. Unforgiven. One month after surviving the Under Trials, Emery Maves finds herself in a world she doesn't recognize―with a man whose cold eyes are haunted...
    By K.M. Moronova
    Paperback
    $4500
    Elsewhere:
    $6000
    Available
    Ships in 4-6 weeks
  • Bulletproof
    From fan-favourite author K.M. Moronova comes another biting, suspenseful dark romance set inside an elite special ops squad. From USA Today bestselling author K.M. Moronova comes a new biting, suspenseful dark romance set inside the elite special ops world of the Dark Forces.
    By K.M. Moronova
    Paperback
    $4999
    Available
    Ships in 4-6 weeks
  • Bulletproof
    Bulletproof
    From fan-favourite author K.M. Moronova comes another biting, suspenseful dark romance set inside an elite special ops squad. From New York Times bestselling author K.M. Moronova comes a new biting, suspenseful dark romance set inside the elite special ops world of the Dark Forces. He was built to be bulletproof. She's the one thing that can break him. Briar Thornton...
    By K.M. Moronova
    Paperback
    $2800
    (1)
    In Stock
    Ships tomorrow
  • Once Written in Gilded Blood
    Once Written in Gilded Blood
    From New York Times bestselling author K.M. Moronova comes the conclusion to her delicious, arranged-marriage romantasy, Cruel Fates Duet. Love is the sharpest weapon of all.... Born with gilded blood, Alira is a demigod knight forged for war—her rare gift makes her both priceless and disposable in the eyes of the gods she serves. When centuries of bloodshed threaten to...
    By K.M. Moronova
    Paperback
    $2199
    Elsewhere:
    $2800
    Backorder
    Ships Unknown - Contact Us
  • Your Knife, My Heart
    Your Knife, My Heart
    Deluxe Edition Dark. Deadly. Irresistible. Cameron Mortem has a problem―he can't stop killing his partners. Officially labeled clinically insane, he's also one of the most lethal assets in the Dark Forces, a brutal underground military operation built on obedience, survival, and silence. But an experimental drug has fractured his control, making him a liability whenever someone else is on the...
    By K.M. Moronova
    Paperback
    Sold Out
  • Leave Me Behind
    From fan-favourite author K.M. Moronova comes a biting, suspenseful dark romance set inside an elite special ops squad. Nell is assigned to a revenge mission after her original squad is massacred, and the ruthless killer assigned as her superior has no intention of playing nice with her. Preorder now to receive the stunning deluxe edition. From fan-favourite author K.M. Moronova...
    By K.M. Moronova
    Paperback
    Sold Out

More from Sci-Fi & Fantasy

View all
  • New Release
    Other Worlds Than These
    I wanted to go back to Mid-World, which was always the Territories by another name - Stephen King This is Stephen King and Peter Straub's epic and unforgettable finale to the Talisman Trilogy (including the novels The Talisman and Black House) and a wrapping up of the fate of the worlds in King's iconic, fiercely beloved Dark Tower epic. It...
    By Stephen King and Peter Straub
    Paperback
    $3299
    Elsewhere:
    $3799
    In Stock
    Ships tomorrow
  • The Sixth Nik
    New Release
    The Sixth Nik
    Daniel Kraus, 2026 Pulitzer Prize–winning author of Angel Down and soon-to-be-a-film Whalefall, returns with The Sixth Nik, a galaxy spanning, genre-blending scifi literary horror, for fans of Ursula K Le Guin and the Alien franchise. Deep into space, far past the triworld outposts, beyond range of the lethal trollbot internet, soars The Sickness: a ship woven from biomatter and capable...
    By Daniel Kraus
    Paperback
    $3199
    Elsewhere:
    $3999
    In Stock
    Ships tomorrow
  • Massif
    New Release
    Massif
    Caught me a mountain Rode it to the stars It's business as usual for Ship Leader Parnell Shi-Sawahla and the crew of the corvette Sassafras. Ride a Massif to a new system, fight the enemy, repeat. For more than two hundred years, humans have been hitching rides on these sentient, starfaring mountain ranges, colonising planets and exporting an on-again, off-again...
    By Garth Nix
    Paperback
    $3299
    Elsewhere:
    $3799
    (1)
    In Stock
    Ships tomorrow
  • He Who Fights With Monsters: Adventurer
    New Release
    He Who Fights With Monsters: Adventurer
    He Who Fights With Monsters: Adventurer Book Two in Shirtaloon's wildly popular LitRPG series. The path from retail middle management to interdimensional wizard adventurer wasn't easy, but Jason Asano is settling into his new life. Now, a contest draws young elites to the city of Greenstone, competing for a grand prize. Jason must gather a band of companions if he...
    By Shirtaloon and Travis Deverell
    Paperback
    $3199
    Elsewhere:
    $3800
    In Stock
    Ships tomorrow
  • New Release
    Scion
    ‘Scion’ is an electrifying sci-fi thriller that follows a contract killer tasked with protecting a scientist from assassination, only to find himself in the crosshairs. My name’s Azure. I kill rich idiots for a living. All completely legal, of course, even if it does still make the old-fashioned crowd a bit uncomfortable. Once the ultra-wealthy realised they had a way...
    By James Islington
    Paperback
    $3199
    Elsewhere:
    $3800
    (1)
    In Stock
    Ships tomorrow
  • Project Hail Mary
    Project Hail Mary by Andy Weir, the SUNDAY TIMES and NEW YORK TIMES bestselling author of The Martian, offers a gripping new adventure in hard science fiction. With endorsement from notable figures such as Barack Obama and a slew of five-star reviews, this novel promises a thrilling and intellectually stimulating journey. Ryland Grace, a lone astronaut, finds himself on a...
    By Andy Weir
    Paperback
    $2399
    Elsewhere:
    $2400
    (5)
    In Stock
    Ships tomorrow
  • On Sale
    10% off
    The Strength of the Few
    The highly anticipated follow-up to The Will of the Many—one of 2023's most lauded and bestselling fantasy novels. The Hierarchy still call me Vis Telimus. They still, as one, believe they know who I am. But with all that has happened—with what I fear is coming—I am not sure it matters anymore. I am no longer one. I won the...
    By James Islington
    Paperback
    $2600
    Elsewhere:
    $3800
    (1)
    In Stock
    Ships tomorrow
  • Red Rising
    The first book in the incredible New York Times bestselling series Darrow is a Helldiver, toiling beneath the surface of Mars. As a member of the Red caste, he performs grueling labor in the belief that his sacrifice will enable future generations to one day inhabit the surface of the Red Planet. The Reds are humankind's lowest caste, living in...
    By Pierce Brown
    Paperback
    $2200
    Elsewhere:
    $2799
    (2)
    In Stock
    Ships tomorrow
  • Crossroads of Ravens
    THE GLOBAL PHENOMENON RETURNS... Every legend has an origin - and Geralt of Rivia's begins here. In this brand-new chapter of Andrzej Sapkowski's Witcher series, follow Geralt in his earliest days as a Witcher, as he faces monsters and humans alike. Discover the untold stories and encounters that shaped the iconic character known today. Crossroads of Ravens brings readers into...
    By Andrzej Sapkowski
    Paperback
    $2899
    Elsewhere:
    $3799
    In Stock
    Ships tomorrow
  • Wind and Truth
    The long-awaited explosive climax to the first arc of the Number One New York Times bestselling Stormlight Archive. Wind and Truth by Brandon Sanderson sees Dalinar Kholin challenge the evil god Odium to a contest of champions with the future of Roshar on the line. The Knights Radiant have only ten days to prepare, and the sudden ascension of the...
    By Brandon Sanderson
    Paperback
    $3100
    Elsewhere:
    $3999
    (1)
    Available
    Ships in 4-6 weeks
  • The Ministry of Time
    One of the 18 best novels of the year for the Sunday Times A book of the year for the New York Times, Guardian, Independent, Evening Standard, Spectator, Red, NPR, Vanity Fair, People, Slate, Advocate, Sydney Morning Herald, Globe and Mail, Den of Geek, Good Housekeeping, Goodreads, NetGalley and Smithsonian Magazine 'A sparkling delight' Observer 'Make room on your bookshelves...
    By Kaliane Bradley
    Paperback
    $2399
    Elsewhere:
    $2799
    (2)
    In Stock
    Ships tomorrow
  • Assassin’s Apprentice
    Assassin's Apprentice by Robin Hobb marks the beginning of an extraordinary adventure in the rich and immersive world of the Six Duchies. Set against the backdrop of a kingdom teetering on the brink of civil war, this gripping tale introduces readers to FitzChivalry Farseer, a royal bastard whose existence threatens the stability of the crown. When the crown prince's secret...
    By Robin Hobb
    Paperback
    $1900
    Elsewhere:
    $2299
    In Stock
    Ships tomorrow

Why buy from us?

Book Hero is not a chain store or big box retailer. We're an independent 100% NZ-owned business on a mission to help more Kiwis rediscover a love of books and reading!

Service & Delivery

Service & Delivery

Our warehouse in Auckland holds over 100,000 books, toys, board games and puzzles in-stock so you're not waiting for your order to arrive from overseas.

Auckland Bookstore

Auckland Bookstore

We're primarily an online store, but for your convenience you can pick up your order for free from our bookstore, which is right next door to our warehouse in Hobsonville.

Our Gifting Service

Our Gifting Service

Books make wonderful thoughtful gifts and we're here to help with gift-wrapping and cards. We can even send your gift directly to your loved one.

Sci-Fi & Fantasy lists from the team

Explore our curated lists from our heroes to find your next read!

The Latest at Book Hero

View all