Every Castle Federation audiobook in the series' own numbers, the ones the books carry on Audible. A book heard since the log began in January 2024 links to its page and the walks it played on.
The Books in Order
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Book 1
Space Carrier Avalon
Heard June 2023, before the log began.
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Book 2
Stellar Fox
Heard June to July 2023, before the log began.
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Book 3
Battle Group Avalon
Heard July 2023, before the log began.
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Book 4
Q-Ship Chameleon
Heard July to August 2023, before the log began.
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Book 5
Rimward Stars
Heard August 2023, before the log began.
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Book 6
Operation Medusa
Heard August to September 2023, before the log began.
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Book 7, also The Dakotan Confederacy, book 1
Admiral's Oath
Heard September 2023, before the log began.
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Book 8, also The Dakotan Confederacy, book 2
To Stand Defiant
Heard September to October 2023, before the log began.
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Book 9, also The Dakotan Confederacy, book 3
Unbroken Faith
Heard January to February 2024, on 6 logged mornings.
More from Glynn Stewart
The covers are Amazon's own images, loaded from Amazon (see the privacy page). A book I have not heard links to Amazon through /go/, an affiliate link (see the disclosure). The numbers and the release years are Audible's, read on October 17, 2026.