How many books has Tamsyn Muir written?

Tamsyn Muir has published 5 novels and 2 other books that we list, as of September 2026.

What order should I read Tamsyn Muir's books in?

Read each series in its own order: start Locked Tomb with Gideon the Ninth. The other books stand alone and can be read in any order.

What is Tamsyn Muir's most famous book?

Gideon the Ninth (2019) is Tamsyn Muir's most widely read book.

Are Tamsyn Muir's books connected?

3 books belong to 1 series (Locked Tomb); the other 4 books stand alone.

Tamsyn Muir books in order

Author of fantasy, science fiction, and horror; most notably Gideon the Ninth

Born: 1985
Country: New Zealand
Books: 7
Series: 1

Tamsyn Muir has published 5 novels and 2 other books, beginning with Gideon the Ninth (2019). The series is Locked Tomb (3 books, starting with Gideon the Ninth). The latest is Locked Tomb Series (2023).

Updated September 2026

Locked Tomb books in order (3)Series page

Reading order: 1 Gideon the Ninth (2019) · 2 Harrow the Ninth (2020) · 3 Nona the Ninth (2022)

1.
Gideon the Ninth (Sep 2019)
440 pages★ 4.2 (72 ratings)
Buy
2.
Harrow the Ninth (Aug 2020)
512 pages★ 4.2 (29 ratings)
Buy
3.
Nona the Ninth (Sep 2022)
480 pages★ 4.0 (13 ratings)
Buy

Where to start with Tamsyn Muir

Start here
Gideon the Ninth
Tamsyn Muir's most-read book and the first of the 3 Locked Tomb books.
Highest rated
Harrow the Ninth
Rated 4.2 out of 5 by 29 readers.
Newest
Locked Tomb Series
Published 2023.

Standalone novels in order

Princess Floralinda and the Forty-Flight Tower (2020)
216 pages
Buy
Locked Tomb Series (2023)
1456 pages
Buy

Other books in order

The Mysterious Study of Doctor Sex (2020)
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As Yet Unsent (2021)
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About Tamsyn Muir

Tamsyn Elizabeth Muir is a New Zealand fantasy, science fiction, and horror author best known for The Locked Tomb, a science fantasy series of novels. Muir won the 2020 Locus Award for her first novel, Gideon the Ninth, and has been nominated for several other awards as well.

Biography from Wikipedia, CC BY-SA 4.0. Photo via Wikimedia Commons.

Tamsyn Muir FAQ

How many books has Tamsyn Muir written?: Tamsyn Muir has published 5 novels and 2 other books that we list, as of September 2026.
What order should I read Tamsyn Muir's books in?: Read each series in its own order: start Locked Tomb with Gideon the Ninth. The other books stand alone and can be read in any order.
What is Tamsyn Muir's latest book?: Locked Tomb Series (2023).
What is Tamsyn Muir's most famous book?: Gideon the Ninth (2019) is Tamsyn Muir's most widely read book.
Are Tamsyn Muir's books connected?: 3 books belong to 1 series (Locked Tomb); the other 4 books stand alone.