Castle Federation Books in Order
Glynn Stewart has written 10 Castle Federation books, published between 2015 and 2023. The first book is Space Carrier Avalon (2015) and the newest is Unbroken Faith (2023). Publication order is the reading order below.
- Books
- 10
- Published
- 2015–2023
- Pages on record
- 2,245 in 6 of 10 books
- Reading time
- 37–56 hours
Reading time is an estimate, not a recorded figure: 2,245 pages at 300 words a page, read at 200–300 words a minute, covering the 6 of 10 titles with a page count on record.
Castle Federation is the catalogue entry for Glynn Stewart's military science fiction sequence. The recorded subjects are space ships and space warfare. Ten books run from Space Carrier Avalon (2015) to Unbroken Faith (2023), taking in Battle Group Avalon (2016), Q-Ship Chameleon (2016), Stellar Fox (2016), Operation Medusa (2017), Rimward Stars (2017) and Admiral's Oath (2022). The median recorded length is 366 pages across the six measured.
How many Castle Federation books are there?
Castle Federation has 10 books, released between 2015 and 2023.
Castle Federation Books in Publication Order
The table lists all 10 Castle Federation 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.
- 120153712/4
- 220163482/4
- 320163922/4
- 420163562/4
- 520174162/4
- 620173622/4
- 72020–2/4
- 82022–2/4
- 92022–2/4
- 102023–2/4
Do you have to read Castle Federation books in order?
You should read the Castle Federation books in publication order, the order of the numbered table above. The catalogue does not record whether each Castle Federation book also stands alone.
Where to start with Castle Federation
Start with Space Carrier Avalon (2015), the earliest published title.
What is the newest Castle Federation book?
Unbroken Faith (2023) is the newest Castle Federation book released so far.
Is there a new Castle Federation book coming?
No next Castle Federation book is announced in the catalogue, which is a gap in the listings it merges rather than a sign that the run has ended.
Castle Federation at a glance
- Paused
- No new Castle Federation title has appeared for 3 years. The last was published in 2023.
- Release pace
- Castle Federation books have appeared about one a year on average.
- Length
- 2,245 pages across the 6 of 10 books with a recorded length, a median of 366 pages each.
- Busiest decade
- Most Castle Federation books, 6 of 10, were published in the 2010s.
What the Castle Federation books are about
1 of the 10 Castle Federation books carry subject tags in Open Library's catalogue. No subject is tagged on more than one of them, so each one below describes a single book. The subjects are cataloguers’ headings, not a plot summary.
- Space ships 1 of 1 books
- Space warfare 1 of 1 books
More books by Glynn Stewart
The author page linked below lists every book in publication order.
- Glynn Stewart books in order 107 books