Semper Fi: The Empire's Corps, Book 4: Audiobook
Book 4 of the Empire's Corps series
According to The Books Insider's catalog data, the Semper Fi: The Empire's Corps, Book 4 audiobook runs 12.5 hours unabridged, narrated by Jeffrey Kafer (about 8.4 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 12.5 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 25 days |
| 1 hour / day | 13 days |
| 2 hours / day | 7 days |
| 1 hour / day at 1.5× | 9 days |
You'll finish in – by –
Part of The Audiobook Finish-Time Calculator: the same instrument for any audiobook we measure.
What our data says
- At 12.5 hours, it runs longer than 78% of the 13,269 Science Fiction audiobooks in our catalog.
Catching up on The Empire's Corps
This is book 4. Books 1 to 3 run 41.5 hours before it; books 1 to 7 run 91.1 hours in all.
| Book | Title | Length |
|---|---|---|
| 1 | The Empire's Corps: The Empire's Corps, Book 1 | 15.5 hrs |
| 2 | No Worse Enemy: The Empire's Corps, Book 2 | 13.3 hrs |
| 3 | When The Bough Breaks: The Empire's Corps, Book 3 | 12.7 hrs |
| 4 | Semper Fi: The Empire's Corps, Book 4 | 12.5 hrs |
| 5 | The Outcast: The Empire's Corps, Book 5 | 12.9 hrs |
| 6 | To The Shores: The Empire's Corps, Book 6 | 12.5 hrs |
| 7 | Reality Check: The Empire's Corps, Book 7 | 11.6 hrs |
More narrated by Jeffrey Kafer
Jeffrey Kafer narrates 348 unabridged audiobooks in our catalog, 2,896 hours in all.
About as long, on the Science Fiction shelf
1,768 Science Fiction audiobooks in our catalog run within 10% of this length. The most popular on the store:
Computed from 409,794 English-language unabridged audiobooks in The Books Insider catalog (store data read November 3, 2026). Lengths are the store's own running times. Methodology.
About this listen
Semper Fi: The Empire's Corps, Book 4 is book 4 of Christopher G. Nuttall's Empire's Corps series: a 12.5-hour unabridged recording, read by Jeffrey Kafer, released February 17, 2015, on the Science Fiction and Space Opera shelves.
The listen at a glance
- Length
- 12.5 hrs
- Narrated by
- Jeffrey Kafer
- Released
- February 17, 2015
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Science Fiction, Space Opera
- Series
- The Empire's Corps #4
- ISBN
- 9781772300130
How to listen to Semper Fi: The Empire's Corps, Book 4 free
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Start listening freeQuestions listeners ask
How long is the Semper Fi: The Empire's Corps, Book 4 audiobook?
Semper Fi: The Empire's Corps, Book 4 runs 12.5 hours unabridged. At 1.5× speed that drops to roughly 8.4 hours.
Is the Semper Fi: The Empire's Corps, Book 4 audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates Semper Fi: The Empire's Corps, Book 4?
Semper Fi: The Empire's Corps, Book 4 is narrated by Jeffrey Kafer.
Is Semper Fi: The Empire's Corps, Book 4 worth listening to at 1.5× speed?
At 1.5× you'd finish in about 8.4 hours, saving 4.2 hours.