Gideon the Ninth: Groundbreaking Science Fantasy Fan Favorite

For those seeking an innovative, genre-defying read, Gideon the Ninth promises an immersive and thrilling escape. Whether you’re drawn by the allure of science fiction, fantasy, or the gripping nature of a well-crafted mystery, this book offers a tantalizing journey into the unknown, leaving readers eagerly anticipating the next installment in The Locked Tomb trilogy.

Gideon the Ninth is the first novel in the Locked Tomb trilogy. The trilogy features the following novels:

  • Gideon the Ninth (2019)
  • Harrow the Ninth (2020)
  • Nona the Ninth (2022)
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Gideon the Ninth: The Groundbreaking Dark Sci-Fi Fan Favorite

Gideon the Ninth

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The Emperor needs necromancers.

The Ninth Necromancer needs a swordswoman.

Gideon has a sword, some dirty magazines, and no more time for undead nonsense.

Tamsyn Muir’s Gideon the Ninth unveils a solar system of swordplay, cut-throat politics, and lesbian necromancers. Her characters leap off the page, as skillfully animated as arcane revenants. The result is a heart-pounding epic science fantasy.

Brought up by unfriendly, ossifying nuns, ancient retainers, and countless skeletons, Gideon is ready to abandon a life of servitude and an afterlife as a reanimated corpse. She packs up her sword, her shoes, and her dirty magazines, and prepares to launch her daring escape. But her childhood nemesis won’t set her free without a service.

Harrowhark Nonagesimus, Reverend Daughter of the Ninth House and bone witch extraordinaire, has been summoned into action. The Emperor has invited the heirs to each of his loyal Houses to a deadly trial of wits and skill. If Harrowhark succeeds she will be become an immortal, all-powerful servant of the Resurrection, but no necromancer can ascend without their cavalier. Without Gideon’s sword, Harrow will fail, and the Ninth House will die.

Of course, some things are better left dead.

Our Review

Gideon the Ninth, authored by Tamsyn Muir, is a tour de force in the realm of speculative fiction. Blending elements of science fiction, fantasy, and mystery, this novel is an enthralling rollercoaster of dark humor, intricate world-building, and complex characters that make it a standout in the genre.

The narrative follows Gideon Nav, a sharp-witted swordswoman, serving the Ninth House. Her world is one of decay, mystique, and necromancy. When the Emperor calls upon the leaders of the nine houses to send their best to become Lyctors (immortal necromantic entities), Gideon sees an opportunity to escape her servitude by joining forces with her nemesis, Harrowhark Nonagesimus, an adept bone witch.

Muir’s storytelling creates a narrative that is both unique and engaging. The mix of intricate world-building, where each house has its own set of magical skills and political intrigue, keeps the reader constantly guessing and immersed in the plot. The gothic, decaying atmosphere of the Ninth House’s surroundings and the mysterious happenings within the House’s walls add depth and an eerie quality to the story.

Gideon’s humor and quick wit make her an immediately likable protagonist. Her complex relationship with Harrowhark, filled with hate and a begrudging respect, adds depth to their interactions and the overall storyline. The intricate development of the supporting cast, each with their own distinct quirks and motivations, adds layers to the plot, creating a rich weaving of characters and relationships.

Muir’s writing style is a mix of vivid descriptions and clever dialogue that keeps the pacing brisk and the reader thoroughly engaged. The balance between action, mystery, and character development is continuous throughout the novel, making it difficult to put down.

However, the novel might not be for everyone. The dense world-building and a somewhat slow start might require some patience from readers, but the payoff is unquestionably rewarding.

Gideon the Ninth is an enchanting tale that pushes the boundaries of genre, having a gripping narrative with compelling characters and a world that is both mysterious and captivating. This book is a must-read for those who enjoy a blend of science fiction, fantasy, and mystery.

Frequently Asked Questions

What is Gideon the Ninth about?

Gideon the Ninth follows the story of Gideon Nav, a swordswoman from the Ninth House, who allies with her nemesis, Harrowhark Nonagesimus, to uncover secrets and vie for immortality in a deadly competition conducted by the Emperor.

What genre is Gideon the Ninth?

It falls into a blend of genres, including science fiction, fantasy, and mystery. The book features elements of necromancy, space opera, and an intricate world of magic and politics.

Who are the main characters in Gideon the Ninth?

Gideon Nav is a skilled swordsman with a quick wit and a fiery spirit. Harrowhark Nonagesimus is a powerful witch and Gideon’s rival who forms and uneasy alliance with her.

Is Gideon the Ninth part of a series?

Yes, “Gideon the Ninth” is the first book in The Locked Tomb trilogy, followed by “Harrow the Ninth” and “Alecto the Ninth.”


Praise for the series:


WINNER of the 2020 Locus Award and Crawford Award
Finalist for the 2023 Hugo Award for Best Series!
Finalist for the 2020 Hugo, Nebula, Dragon, and World Fantasy Awards

“Unlike anything I’ve ever read. ” —V.E. Schwab

“Lesbian necromancers explore a haunted gothic palace in space!” —Charles Stross

“Deft, tense and atmospheric, compellingly immersive and wildly original.” —The New York Times


In the end, Tamsyn Muir’s Gideon the Ninth is more than a book; it’s an adventure waiting to be embarked upon, an exploration of a world that stretches the boundaries of imagination and leaves an indelible mark on all who dare to delve into its pages.

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