Inside the Space Ships (George Adamski, 1955) describes his further adventures with his extraterrestrial friends, after his first contact in Flying Saucers Have Landed.
As he tells it, he got a mysterious hint to go to a Los Angeles hotel, and two business-suited youngish-looking men met him there. They greet him in the fashion of the earlier Venusian, and one of them also greets him by name. George then goes off with them into the surrounding desert, learning that they come from Mars and Saturn, and he meets that Venusian and his flying saucer there. He names them: the Venusian Orthon, the Martian Firkon, and the Saturnian Ramu.
It's a short flight from there to the big cylindrical spaceship that he'd earlier seen, and the saucer goes inside. The four depart, they visit a control room, and they then visit a sumptuously decorated lounge where two women meet them, women that George finds indescribably beautiful. They wear pastel-colored gowns with jeweled belts and metallic-looking sandals, and George learns that these are two of the ship's pilots in off-duty outfits. Of the two, the Venusian he names Kalna and the Martian Ilmuth.
All six then sit down and have some very enlightening conversation, with George's ET friends describing their society and the history and answering his questions. Though the ship he's on is from Venus, its crew comes from several planets. When she's on duty and wearing a jumpsuit, Ilmuth invites George to her pilot station, and he accepts. He also has an audience with a spiritual master who has a lot to say, like assuring him that the Earth is not the least-developed planet in the Universe.
He makes some other trips, to a similar Saturnian ship, and then to the Venusian one again. In that latter trip, he participates in a going-away party for Firkon and Ramu, who are returning to their homeworlds from having lived on the Earth for a while. The ship also flies by the Moon, and George gets to see it up close, complete with lots of Earthlike scenes on its far side.
This book provides examples of:
- Advanced Ancient Humans: Firkon tells us that "On your Earth there is no record of these earliest inhabitants other than the mythology of one of your races in which the memory of this first civilization is preserved in what they call the god Triton, named after the original race of Triteria... Earth man has repeatedly attained certain peaks, only to enter into another stage of destruction which, through misuse of the elements, has destroyed all that he has accomplished."
- Alien Among Us: Firkon and Ramu are only two of many Earth-resident ETs.
- Alien Non-Interference Clause: Orthon tells us that "Under these laws each individual, each group of mankind, all intelligent life on each world, must decide its own destiny without interference from another. Counsel, yes. Instruction, yes. But interference to the point of destruction, never."
- Aliens Speaking English: several of George's ET contacts converse in English with him, and the ships have autotranslator technology.
- Ancient Astronauts: Firkon tells us that when the Earth became habitable, "The first inhabitants of Earth were brought to it from the other planets."
- Human Aliens: The ETs are all human(oid).
- Humans Are Bastards: Orthon tells us "With the sole exception of inhabitants on Earth, we have found the peoples of other worlds to be very friendly... it is to the Earth alone that these passenger cruisers never approach. Nor will they be permitted to do so until your people have a greater understanding of fellowship as well as of the Universe beyond the limiting confines of your own little planet."
- Humans Are Morons: The ETs here also describe how destructive our nuclear bombs are.
- Mile-Long Ship: the Venusian ship is 2000 ft long (2/5 mi), and the Saturnian ship seems to have a similar size, but a picture shows a ship that is several miles long.
- Older Than They Look: The ETs are often at least a few centuries old, despite the youthful appearance of many of them.
- Penal Colony: Ramu tells us "So, for the reasons that I have just mentioned, the Earth in our system was chosen for the new home of these unruly ones from many planets inside and outside of our system."
- Perfect Pacifist People: George on a ship: "And nowhere did I see anything that even faintly resembled a weapon of destruction." He notes that the ship's deflector system could be used for self-protection, and one of his ET friends agrees.
- Proud Scholar Race: The ETs like learning, travel, science, and the arts, and they have a lot of respect for their spiritual masters.
- Smoking Is Not Cool: George fails to find an ashtray and Kalna tells him that "only Earth people indulge in that odd habit."
- Starship Luxurious: the Venusian and Saturnian ships both have sumptuously decorated lounges.
- The Mothership: the ships that George visits. They are all carrier ships for the flying saucers that take him to and from the Earth.
- Thou Shalt Not Kill: Two of the ETs say "... we would allow ourselves to be destroyed rather than to slay a fellow being." and "We do not kill our fellow man, even in self-defense."