Public domain. Cover image from Project Gutenberg ebook #63432. Colony of the Unfit by Manfred A. Carter Download .m4b · 77 MB How to listen → · Problem with this narration? Let us know → Narrator Arthur — English RP Narrator (en-GB) Length 1 hr 16 min Language English Added November 14, 2026 Source ebook Project Gutenberg License Public domain FictionScience Fiction