In the free-fall environment of the Smoke Ring (an immense gaseous
envelope and neutron star circling a habitable cluster of plants,
trees and animals), descendants of the starship Discipline’s crew no
longer remember their Earth roots or the existence of Sharls Davis
Kendy, the computer AI controlling the ship — until Kendy initiated
contact once more, 500 years after the crew whom the half-mad AI
calls “mutineers” were abandoned on this strange world (see The
Integral Trees).
Fourteen years later only Jeffer, the Citizens Tree “Scientist”,
knew that Kendy was watching and advising. When Citizens Tree
rescues a family of loggers, they learn of the Admiralty, a military
organization in a town unknown to Citizens Tree. Jeffer is among
those who want to visit the town and the Admiralty, which may have
maintained intact Discipline's original computer library. The events
following the visit to the town and the subsequent flight from the
Admiralty form part of this exciting tale of adventure, danger and
courage.