Order of Book Series
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Locked Tomb Books in Order

Locked Tomb by Tamsyn Muir contains 5 books, published between 2019 and 2023. The first book is Gideon the Ninth (2019) and the newest is The Unwanted Guest (2023). Publication order is the reading order below.

Books
5
Published
2019–2023
Confirmed
1 of 5 titles
Pages on record
1,472 in 3 of 5 books
Reading time
25–37 hours

Reading time is an estimate, not a recorded figure: 1,472 pages at 300 words a page, read at 200–300 words a minute, covering the 3 of 5 titles with a page count on record.

See all 5 books in order Printable Locked Tomb checklist

Locked Tomb is a science fantasy series by the New Zealand author Tamsyn Muir, published by Tor Books. Five titles are catalogued: Gideon the Ninth (2019), Harrow the Ninth (2020), As Yet Unsent (2021), Nona the Ninth (2022) and The Unwanted Guest (2023). Subject headings cover necromancy, lesbians, dark fantasy and LGBTQ science fiction and fantasy. The books are long, at a median of 512 pages, and nothing new has appeared since 2023.

How many Locked Tomb books are there?

Locked Tomb has 5 books, released between 2019 and 2023.

Locked Tomb Books in Publication Order

The table lists all 5 Locked Tomb books in the order they were published, with the release year, the page count where one is on record, and how many independent book listings confirm each title. Catalogue data as of September 2026.

  1. Cover of Gideon the Ninth by Tamsyn Muir, book 1 of the Locked Tomb series (2019)
  2. Cover of Harrow the Ninth by Tamsyn Muir, book 2 of the Locked Tomb series (2020)
  3. Cover of Nona the Ninth by Tamsyn Muir, book 4 of the Locked Tomb series (2022)
  4. Cover of The Unwanted Guest by Tamsyn Muir, book 5 of the Locked Tomb series (2023)
  1. 1
    Gideon the Ninth2019 · 448 pages · confirmed 2/4
    2019448
    Buy at Amazon USAmazon UK
  2. 2
    Harrow the Ninth2020 · 512 pages · confirmed 2/4
    2020512
    Buy at Amazon USAmazon UK
  3. 3
    As Yet Unsent2021 · confirmed 2/4
    2021–
    Buy at Amazon USAmazon UK
  4. 4
    Nona the Ninth2022 · confirmed 2/4
    2022–
    Buy at Amazon USAmazon UK
  5. 5
    The Unwanted Guest2023 · 512 pages · confirmed 3/4
    2023512
    Buy at Amazon USAmazon UK

Is there a chronological order for Locked Tomb?

No separate chronological order is on record for Locked Tomb, because none of the book listings this catalogue draws on publishes one; the publication order above is the only order given.

Do you have to read Locked Tomb books in order?

You should read the Locked Tomb books in publication order, the order of the numbered table above. The catalogue does not record whether each Locked Tomb book also stands alone.

Where to start with Locked Tomb

Start with Gideon the Ninth (2019), the earliest published title.

What is the newest Locked Tomb book?

The Unwanted Guest (2023) is the newest Locked Tomb book released so far.

Is there a new Locked Tomb book coming?

No next Locked Tomb book is announced in the catalogue, which is a gap in the listings it merges rather than a sign that the run has ended.

Awards Locked Tomb has won

Wikidata records 1 award and 10 nominations for Locked Tomb. Each row states whether the title won or was shortlisted, and the year the award was given.

Locked Tomb at a glance

Paused
No new Locked Tomb title has appeared for 3 years. The last was published in 2023.
Release pace
Locked Tomb books have appeared about one a year on average.
Length
1,472 pages across the 3 of 5 books with a recorded length, a median of 512 pages each.
Busiest decade
Most Locked Tomb books, 4 of 5, were published in the 2020s.

What the Locked Tomb books are about

4 of the 5 Locked Tomb books carry subject tags in Open Library's catalogue. The subjects below are the ones that recur across them, most frequent first: necromancy is tagged on 4 of 4. The subjects are cataloguers’ headings, not a plot summary.

More books by Tamsyn Muir

The author page linked below lists every book in publication order.