The Highest Treason
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About This Book
It was a space war on a massive scale against an alien enemy sworn to enslave mankind on Earth and all its colonies . . . But mankind's society had grown weak, forgetting the key component that had made it reach for the stars in the first place.
How to Listen
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More by Randall Garrett
FAQ
Is this audiobook really free?
Yes. "The Highest Treason" is a public domain work from Project Gutenberg. CastReader converts it to audio using AI text-to-speech for free. No account or payment needed.
What does the AI voice sound like?
CastReader uses Kokoro TTS, a natural-sounding AI voice. It handles punctuation, names, and dialogue naturally. Most listeners forget it's AI after a few minutes.
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