About the book
Earth’s scientists aid distant allies against a powerful enemy threatening entire worlds.
LibriVox recording; public domain in the United States.
Recorded by LibriVox volunteers. Audio hosted by the Internet Archive. Original recording and credits.
Listen chapter by chapter
- 01 - Chapter 1 · 13 minutes
- 02 - Chapter 2 · 19 minutes
- 03 - Chapter 3 · 21 minutes
- 04 - Chapter 4 · 23 minutes
- 05 - Chapter 5 · 12 minutes
- 06 - Chapter 6 · 15 minutes
- 07 - Chapter 7 · 19 minutes
- 08 - Chapter 8 · 13 minutes
- 09 - Chapter 9 · 12 minutes
- 10 - Chapter 10 · 24 minutes
- 11 - Chapter 11 · 9 minutes
- 12 - Chapter 12 · 19 minutes
- 13 - Chapter 13 · 13 minutes
- 14 - Chapter 14 · 19 minutes
- 15 - Chapter 15 · 11 minutes
- 16 - Chapter 16 · 12 minutes
- 17 - Chapter 17 · 18 minutes
- 18 - Chapter 18 · 29 minutes
- 19 - Chapter 19 · 7 minutes
- 20 - Chapter 20 · 16 minutes
- 21 - Chapter 21 · 22 minutes
- 22 - Chapter 22 · 16 minutes
- 23 - Chapter 23 · 26 minutes
- 24 - Chapter 24 · 8 minutes
- 25 - Chapter 25 · 27 minutes
- 26 - Chapter 26 · 15 minutes