Blood Oath
The Kingbreaker's Saga (Book 1)
- Author JC Duncan
- Narrator Sean Barrett
- Publisher Boldwood Books
- Publish Date 21 September 2026
- Run Time 10 hours and 27 minutes
- Format Audio
- Genre Historical fiction.
Flexible Pricing & Rewards For Listening
At xigxag, the more you read, the less you pay* on select audiobook and x-book® titles, as in the table below. Pricing updates automatically in the app and resets one year after your first purchase. And you can always find a selection of brilliant titles available for only £3.99.
Titles Purchased
- 1-5
- 6-10
- 11-15
- 16-20
- Over 20
Price per title
- £8.99
- £7.99
- £6.99
- £5.99
- £4.99
*Only the full price titles you buy count toward your personal pricing tier. Full price titles don’t include Listen for Less or other books bought with a voucher or discount code.
Listen to a sample
What to expect
Born to be a great lord, sworn to die for vengeance.
Denmark, 982AD
At the end of the first millennium, the Baltic Sea knew a terror unlike any other: the Jomsvikings. Cast out by the rise of Christianity, exiled warriors with no homeland who lived by selling their steel for silver. They showed no fear, offered no mercy, and never fled from any foe.
A young boy called Vagn arrives at Jomsburg with nothing but a sword and a blood-sworn oath of vengeance. He comes to find his grandfather, their leader, and seeks to join the brotherhood. His reward will be a life of war, and the promise of revenge.
Once destined for lordship, Vagn finds his path shaped instead by loss and hardship. Death and grief guide him; steel and pain forge him. Among fellow exiles and hardened warriors, he must endure brutal trials and prove himself worthy. For the Jomsvikings are unmatched in battle, breakers of armies and kings. If he survives their tests, the path of revenge is his to walk, and he’ll know no life but war.
Praise for J C Duncan:
'Harald Hardrada as you've never seen him before! A fantastic story written by a fantastic author' - Donovan Cook
'Immersive and impeccably researched, JC Duncan brings Harald Hardrada's epic journey to life with gripping authenticity' - Richard Cullen
'A fresh, vibrant take on perhaps that most Viking of all Vikings, Harald Hardrada. Bloody, epic and full of detail, Duncan paints a vivid picture of Harald’s early life, as he battles his way into legend' - Matthew Harffy
| Author | JC Duncan |
|---|---|
| Narrator | Sean Barrett |
| Series | The Kingbreaker's Saga |
| Duration | 10 hours and 27 minutes |
| Release Date | |
| ISBN | 9781806566877 |
| Format | Audiobook |
| Publisher | Boldwood Books |
| Genre | Historical fiction |
| Availability | AU, GB, IE, US |
More from the same
About xigxag
Experience the best audiobooks with xigxag, an innovative and user-friendly audiobook platform designed for seamless discovery, purchase, and enjoyment of your favorite titles. Our flexible pricing model offers bestselling audiobooks for less, providing affordable prices and the best audiobook deals without requiring a subscription. Perfect for gifting, xigxag also features convenient audiobook gift cards and in-app audiobook gifting options.
Beyond the listening experience, xigxag stands as an exciting alternative to big tech, embodying a strong commitment to sustainability and ethical practices. As the only B Corp certified UK audiobook service, we ensure a guilt-free listening experience from a leader in audiobook innovation.
Effortlessly search audiobooks, access honest audiobook reviews that evaluate both the content and narration, and easily discover hidden gems. Whether you prefer to download or stream top audiobook titles, xigxag provides the best possible listening experience anytime, anywhere, on the UK’s best independent audiobook app. Discover the future of audiobooks today.