Public domain. Cover image from Project Gutenberg ebook #73504. The abysmal invaders by Edmond Hamilton Download .m4b · 70 MB How to listen → · Problem with this narration? Let us know → Narrator Walter — American Narrator (en-US) Length 1 hr 6 min Language English Added November 4, 2026 Source ebook Project Gutenberg License Public domain AdventureScience Fiction