- E-bookTHE HOLLOW EARTHArthur Conan Doyle
- E-bookThe Future of DarknessAyn Rand
- E-bookSci-Fi AnthologyJules Verne
- E-bookThe Citadel of FearGertrude Barrows Bennett
- E-bookThe Greatest of Dystopian Classics of All TimeEdgar Allan Poe
- E-bookThe Citadel of Fear (Sci-Fi Classic)Gertrude Barrows Bennett
- E-bookClaimedGertrude Barrows Bennett
- E-bookClaimedFrancis Stevens
- E-bookClaimed!Gertrude Barrows Bennett
- E-bookThe Heads of CerberusGertrude Barrows Bennett
- E-bookThe Greatest Tales of Lost Worlds & Alternative UniversesArthur Conan Doyle
- E-bookNightmareFrancis Stevens
- E-bookNightmare (Sci-Fi Classic)Gertrude Barrows Bennett
- E-book150 SF ClassicsJules Verne
- E-bookAnthology of Dystopian ClassicsEdgar Allan Poe
- E-bookClaimed (Sci-Fi Classic)Gertrude Barrows Bennett
- E-bookThe Tales of Lost Worlds & Alternative UniversesJules Verne
- E-bookDAWN OF THE APOCALYPSEAyn Rand
- E-bookNightmare!Gertrude Barrows Bennett
- E-bookThe Citadel of FearFrancis Stevens
- E-bookSci-Fi Boxed SetH. G. Wells
- E-bookThe Heads of CerberusFrancis Stevens
- E-bookNightmareGertrude Barrows Bennett
- E-bookTHE HEADS OF CERBERUS (Dystopian Classic)Gertrude Barrows Bennett
- E-bookNightmareFrancis Stevens