I’m looking for a book I read as a child (early nineties) about an alien who used a spaceship and was part of a wider empire of aliens. They controlled millions with their mind.

In a part of the book, an alien was developing and wearing a helmet to extend their power, but tried using it at some crucial moment - and the helmet failed.


Niven, Known Space, stories involving the Slavers? One of the stories was adapted for animated Star Trek.

  • Alien.
  • Empire (dead by the time of the story, however).
  • Psi-amplifier technology.
  • 9
    This might be an imperfectly remembered World of Ptavvs. – Spencer Feb 9 '19 at 22:54
  • 1
    The word 'Thrint' revives a certain memory - I'm going to have a look at 'World of Ptavvs'! – allan_roger Feb 10 '19 at 1:49

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