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Infernal Vow

Infernal Vow Open the full-size image

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Contributors

By Tigest Girma

Formats and Prices

On Sale
Nov 3, 2026
Publisher
Hachette Audio
ISBN-13
9781668659182

Price

$27.99

Format

  1. ebook
  2. Hardcover
  3. Hardcover (Special Edition)
  4. Trade Paperback (Large Print)

Format:

  1. Audiobook Download (Unabridged) $27.99
  2. ebook $12.99 $16.99 CAD
  3. Hardcover $19.99 $25.99 CAD
  4. Hardcover (Special Edition) $21.99 $28.99 CAD
  5. Trade Paperback (Large Print) $23.99 $31.99 CAD

Buy from Other Retailers:

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  • Google Play

Worlds collide, secrets are laid bare, and nothing is sacred in this highly anticipated finale to the #1 New York Times bestselling series, Immortal Dark! 

Beware the monster, beware the girl. They feed on wild devotion.

Kidan Adane stands at the edge of a world on the brink—where ancient rules no longer hold, forbidden power is stirring, and the consequences of past choices are beginning to surface.​

​With love turned to hatred and humanity hanging in the balance, Kidan must decide how much more she is willing to break to save the world she’s already doomed.

​Perfect for fans of:
  • Enemies to Lovers
  • Romantasy
  • Vampires
  • Sentient Houses
  • Morally Gray Characters
  • Villainous Romantic Leads
  • Dark Academia

Genre:

  • Teen & Young Adult
  • Young Adult Fiction
  • Vampires

Tigest Girma is the #1 New York Times bestselling author of Immortal Dark. After graduating with a Bachelor of Education, she splits her time between writing and teaching. Passionate about exploring East African characters and myths, her work weaves Black stories with the dark and fantastical. In her free time, she can be found rewatching her comfort shows where the villain gets the girl. Originally from Ethiopia, she is now based in Melbourne, Australia. She invites you to visit her at tigestgirma.com or tiktok.com/tigestgirma. 

  • “A darkly compelling story that sinks its teeth in you and doesn’t let go. With a layered plot that keeps you guessing and morally grey characters you can’t help but root for, Immortal Dark is an enthralling, masterful debut. I’m obsessed with this cut-throat world.” 
    Pascale Lacelle, New York Times bestselling author of Curious Tides
  • "Immortal Dark is everything it promises to beB>a completely original, deliciously dark take on vampires that pulls none of its punches. I had my heart in my mouth from the first page to the very last."
    Sarah Underwood, New York Times bestselling author of Lies We Sing to the Sea

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About the Author

Tigest Girma is the #1 New York Times bestselling author of Immortal Dark. She is an Ethiopian writer based in Melbourne, Australia, and splits her time between writing and teaching. Passionate about exploring East African characters and myths, she weaves Black stories with the dark and fantastical in her work. In her free time, she can be found rewatching her comfort shows where the villain gets the girl.She invites you to visit her at tigestgirma.com or tiktok.com/tigestgirma. 

Read the Series

Go to Series

Go to Book

Eternal Ruin (Standard Edition)

Go to Book

Infernal Vow (Standard Edition)

Fan Behavior

  1. Immortal Dark: Which Uxlay University House Do You Belong To?

  2. 1 Author, 7 Questions: Tigest Girma

  3. A Fan Playlist for Immortal Dark

From NOVL Nation

“This is an amazing dark, tense, ambitious story… The story is exactly how I want a vampire book to be: dark, eerie, mysteries galore. It is dark academia at the finest.”

– Melissa, @bookgroundmel

“Draws you in from the very first chapter and doesn’t let go you until the end. This book did the dark academia vampires JUST RIGHT!!!”

– Kennedy, @kennuhdeereads

“This book was one HELL of a ride! It was so deliciously dark, gritty, and emotionally charged, filled with mysterious Vampires, Ethiopian mythology, and engaging characters- it sucked me in from page one, and never let up… I was blown away by this incredible debut, and recommend it to anyone looking for a beautifully written, unique vampire story, with just the right amount of dark academia, romance, and gothic vibes.”

–Lauren, @chaosandcourtships

Peek the Audiobook

On the blog

  1. Immortal Dark Characters as the Zodiac Signs

  2. Books for Haters Who Are Secretly Lovers

  3. Choose a Romance Trope, Get a Romance Read

  4. What to Read If You Love Quicksilver

  5. Gothic Winter Reads

#ImmortalDark

Tigest Girma

About the Author

Tigest Girma is the #1 New York Times bestselling author of Immortal Dark. After graduating with a Bachelor of Education, she splits her time between writing and teaching. Passionate about exploring East African characters and myths, her work weaves Black stories with the dark and fantastical. In her free time, she can be found rewatching her comfort shows where the villain gets the girl. Originally from Ethiopia, she is now based in Melbourne, Australia. She invites you to visit her at tigestgirma.com or tiktok.com/tigestgirma. 

Learn more about this author

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