121 books • 11 series
Book #1: The Precipice
Book #2: The Rock Rats
Book #3: Brain Movies
Book #5: Brain Movies Volume Five
Book #1: Exiled from Earth
Book #2: Flight of Exiles
Book #3: End of Exile
Book #1: Powersat
Book #2: Mars
Book #3: Moonrise
Book #4: Return to Mars
Book #5: Moonwar
Book #3: Power Failure
Book #1: Moonrise
Book #2: Vengeance of Orion
Book #5: Orion among the Stars
Book #1: Uranus
Book #2: Neptune
Book #3: Pluto
Book #4: Power Challenges
Book #3: Survival
Book #3: Apes and Angels