Public domain. Cover image from Project Gutenberg ebook #76821. The sureness of MacKenzie by Frederick R. Bechdolt Download .m4b · 30 MB How to listen → · Problem with this narration? Let us know → Narrator Walter — American Narrator (en-US) Length 29 min Language English Added November 2, 2026 Source ebook Project Gutenberg License Public domain AdventureShorts