Quick Facts
| Author | Jack Campbell |
| Narrator | Christian Rummel |
| Runtime | 9h44m |
| Published | June 23, 2022 |
| Rating | 4.8 / 5 (50 ratings) |
| Categories | Science Fiction & Fantasy, Science Fiction, Adventure, Military, Space Opera |
| Format | Audiobook (Digital) |
| Platform | Audible |
About This Audiobook
Thawed out after a century of cryogenic sleep, Captain John “Black Jack” Geary has led the Alliance fleet through Syndicate Worlds space, thwarting the enemy at every turn—even within his own ranks—during the long journey home. Alliance prisoners of war are being held at a labor camp in...
Why Listen to Relentless?
- Expert narration by Christian Rummel brings every character and scene to life across 9h44m of immersive audio.
- Bestseller-quality story from Jack Campbell, rated 4.8 stars by 50 listeners.
- Free with your Audible trial — keep the audiobook forever even if you cancel.
- Perfect for commutes, workouts, and relaxation. Listen anywhere, anytime.
Download: Relentless
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Relentless by Jack Campbell is an immersive listening experience. Performed by Christian Rummel with a runtime of 9h44m, you can start with a free trial that you can cancel at any time. The audiobook remains yours forever, even if you end the trial.