An unusual space opera - entire tale told inside someone's drawing room (on the world called "Silvereyes"), recounting events that happened 40 years ago!
This is the story of Richard Harvey Schultz-Mann - the man who found out the location of puppeteers home world and intended to blackmail them by exposing its location. Only Mann's luck ran out. Puppeteers have learned of galactic core explosion, & have taken their world elsewhere.
First published in Bridging the Galaxies.
Full story is available online at Future worlds of Larry Niven.
Other sites: Variety SF,