Secret History of Extraterrestrials Advanced Technology and the Coming New Race Kasten Len Heftet / 2010 / Engelsk
Dark Fleet The Secret Nazi Space Program and the Battle for the Solar System Kasten Len Heftet / 2020 / Engelsk
Alien World Order The Reptilian Plan to Divide and Conquer the Human Race Kasten Len Heftet / 2017 / Engelsk
Secret Journey to Planet Serpo A True Story of Interplanetary Travel Kasten Len Heftet / 2013 / Engelsk
