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Gideon the Ninth by Tamsyn Muir Summary

Gideon the Ninth
Tamsyn Muir
Science
Technology
Philosophy
Overview
Key Takeaways
Author
FAQs

Overview of Gideon the Ninth

Lesbian necromancers in space! Tamsyn Muir's genre-bending masterpiece blends sci-fi, fantasy, and murder mystery into a cult phenomenon that was a Hugo Award finalist. Adri Joy called it "the queer necromantic murder mystery you've been missing all your life."

Key Takeaways from Gideon the Ninth

  1. Necromancer-cavalier bonds require trust beyond rivalry to survive lethal trials
  2. Locked Tomb mysteries demand confronting undead horrors and betrayals in decaying space citadels
  3. "One flesh, one end" embodies fatal loyalty between swordswomen and bone-weaving necromancers
  4. Lyctor trials expose cosmic power plays through gothic puzzles and skeletal combat arenas
  5. House Ninth's survival hinges on masking generational guilt through sacred corpse veneration
  6. Escaping dead-planet oppression fuels sword-prodigy Gideon's reluctant pact with enemy Harrowhark
  7. Tamsyn Muir blends Agatha Christie whodunits with Dune-esque necropolitical dynasties
  8. Body horror meets queer yearning in lethal dance between resentment and devotion
  9. Space opera gothics redefine immortality's cost through bone magic and sacrificial love
  10. The Locked Tomb series launches with swordfights, snark, and soul-sharding betrayals

Overview of its author - Tamsyn Muir

Tamsyn Elizabeth Muir, the New Zealand-born speculative fiction writer, is the bestselling author of Gideon the Ninth and the acclaimed Locked Tomb series. She is celebrated for blending science fantasy, horror, and dark humor in her unique storytelling.

A 2010 graduate of the prestigious Clarion Writers Workshop, Muir draws on her Roman Catholic upbringing and LGBTQ+ identity to craft narratives rich in themes of sacrifice, religious devotion, and morally complex relationships. Her debut novel Gideon the Ninth (2019) won the Locus Award for Best First Novel and became a Nebula Award finalist. It launched a genre-defying trilogy that continues with Harrow the Ninth and Alecto the Ninth.

Before becoming a full-time writer, Muir taught English and ESL, experience that informs her sharp dialogue and character-driven storytelling. Her short fiction, including Shirley Jackson Award finalist “The Magician’s Apprentice” and World Fantasy-nominated “The Deepwater Bride,” established her reputation for intricate worldbuilding. Now based in Oxford, UK, Muir’s work has been translated into over 20 languages, with The Locked Tomb series optioned for television adaptation.

Common FAQs of Gideon the Ninth

What is Gideon the Ninth by Tamsyn Muir about?

Gideon the Ninth follows eighteen-year-old Gideon Nav, a sword-wielding orphan trapped in the Ninth House, a decaying necromantic cult guarding a mysterious Locked Tomb. When rival houses gather for a deadly competition to serve the Emperor, Gideon becomes cavalier to her nemesis Harrowhark Nonagesimus, navigating lethal trials, bone magic, and political intrigue. The novel blends gothic sci-fi, dark humor, and queer romance amid skeletons and cosmic horror.

Who should read Gideon the Ninth?

Fans of genre-blending stories will enjoy this mix of sci-fi, fantasy, and horror. Ideal for readers seeking LGBTQ+ representation (featuring a lesbian protagonist), intricate world-building, and witty dialogue. Those comfortable with nonlinear plots and necromantic themes will appreciate its uniqueness, though it may challenge readers preferring straightforward narratives.

Is Gideon the Ninth worth reading?

Yes, for readers who enjoy bold, unconventional storytelling. While some criticize its convoluted plot, others praise its originality, dark humor, and emotional depth. The sequel, Harrow the Ninth, has stronger acclaim, making this a compelling entry into Muir’s Locked Tomb series.

What are the main themes in Gideon the Ninth?
  • Identity and loyalty: Gideon’s struggle for autonomy vs. duty to Harrow.
  • Isolation: The Ninth House’s decline and Harrow’s secret burdens.
  • Sacrifice: Human costs of necromancy, explored through Harrow’s tragic past.
  • Queer resilience: Gideon’s defiance and relationships subvert traditional tropes.
How does Gideon the Ninth blend genres?

The novel merges gothic horror (haunted mansions, skeletal constructs), space opera (interplanetary politics), and dark comedy (Gideon’s sarcastic narration). Muir juxtaposes sword fights with necromantic puzzles, creating a tone both macabre and irreverent.

What criticisms exist about Gideon the Ninth?

Some readers find the plot disjointed and world-building overly complex. The middle section drags before accelerating into a violent climax. However, its bold voice and emotional payoff polarize critics—hailed as “brutally imaginative” by fans but “messy” by detractors.

Who is Harrowhark Nonagesimus?

Harrowhark is the Reverend Daughter of the Ninth House, a genius necromancer burdened by guilt after her parents’ suicides. Her fraught dynamic with Gideon evolves from rivalry to reluctant alliance, driven by shared trauma and Harrow’s secret love for the Locked Tomb’s occupant.

What is the Locked Tomb’s significance?

The Tomb contains a mysterious figure Harrow idolizes, central to the Ninth House’s purpose. Its secrets tie into the Emperor’s immortality and a pivotal sacrifice involving Gideon’s past, revealed in the climax.

How does Gideon the Ninth handle LGBTQ+ representation?

Gideon’s lesbian identity is woven organically into her character—highlighted through her crush on Dulcinea and wry observations. The novel avoids tokenism, presenting queerness as intrinsic to its world.

Why is Gideon the Ninth compared to “lesbian necromancers in space”?

This tagline captures its premise: Gideon and Harrow’s enemies-to-allies arc unfolds in a cosmic gothic setting, combining swashbuckling action with necromantic rituals. The phrase emphasizes its unapologetic queer themes and genre mashup.

How does Gideon the Ninth set up its sequel?

The shocking finale reveals existential threats to the Emperor and Harrow’s unresolved connection to the Tomb. Gideon’s fate leaves room for metaphysical twists in Harrow the Ninth, which expands the series’ scope.

Is Gideon the Ninth relevant to readers in 2025?

Yes—its themes of resilience and defying oppressive systems resonate amid contemporary conversations about identity and power. The series’ cult following ensures ongoing discussions, aided by the 2024 Alecto the Ninth release.

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"Gonna use this app to clear my tbr list! The podcast mode make it effortless!"

@Moemenn
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"Reading used to feel like a chore. Now it's just part of my lifestyle."

@Erin, NYC
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"It is great for me to learn something from the book without reading it."

@OojasSalunke
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starstarstarstarstar

"The flashcards help me actually remember what I read."

@Leo, Law Student, UPenn
platform
comments37
likes483

"I felt too tired to read, but too guilty to scroll. BeFreed's fun podcast pulled me back."

@Chloe, Solo founder, LA
platform
comments12
likes117

"Gonna use this app to clear my tbr list! The podcast mode make it effortless!"

@Moemenn
platform
starstarstarstarstar

"Reading used to feel like a chore. Now it's just part of my lifestyle."

@Erin, NYC
Investment Banking Associate
platform
comments17
thumbsUp254

"It is great for me to learn something from the book without reading it."

@OojasSalunke
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"The flashcards help me actually remember what I read."

@Leo, Law Student, UPenn
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comments37
likes483
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