Locked Tomb books in order A series by Tamsyn Muir
The Locked Tomb series by Tamsyn Muir has 3 books, from Gideon the Ninth (Sep 2019) to Nona the Ninth (Sep 2022). Read it in order, starting with Gideon the Ninth.
Reading order: 1 Gideon the Ninth (2019) · 2 Harrow the Ninth (2020) · 3 Nona the Ninth (2022)
Updated September 2026
All 3 Locked Tomb books in order
- 1.
Gideon the Ninth (Sep 2019)
- 2.
Harrow the Ninth (Aug 2020)
- 3.
Nona the Ninth (Sep 2022)
Locked Tomb FAQ
- How many Locked Tomb books are there?
- There are 3 Locked Tomb books, as of September 2026.
- What order should I read the Locked Tomb books in?
- In publication order, starting with Gideon the Ninth (Sep 2019): 1 Gideon the Ninth (2019) · 2 Harrow the Ninth (2020) · 3 Nona the Ninth (2022).
- What is the first Locked Tomb book?
- Gideon the Ninth (Sep 2019).
- What is the latest Locked Tomb book?
- Nona the Ninth (Sep 2022).
- Is the Locked Tomb series finished?
- There have been no new Locked Tomb books since 2022.
Sources: series order and dates from Wikidata and Open Library. Last updated September 2026.