Double Solitaire

Dr. Tachyon's psychotic grandson, Blaise, hijacks Tachyon's body and his spaceship and flees to Tachyon's homeworld, Takis. Tachyon, trapped in a pregnant 16-year-old's body, manages to follow Blaise to Takis, but on a planet where women are treated as chattels, what can a teenage girl do? . . .