Public domain. Cover image from Project Gutenberg ebook #70571. Earth needs a killer by Bryce Walton Download .m4b · 70 MB How to listen → · Problem with this narration? Let us know → Narrator Arthur — English RP Narrator (en-GB) Length 1 hr 10 min Language English Added November 5, 2026 Source ebook Project Gutenberg License Public domain FictionScience Fiction