Sequel to: 2001, a space odyssey.;"A Del Rey book." Dr. Heywood Floyd travels to Jupiter to find out what happened to the astronauts of the spaceship Discovery and its computer HAL 9000.
Heywood Floyd, survivor of two previous encounters with the mysterious monoliths, must once again confront Dave Bowman, a newly independent HAL, and the power of an alien race.
The spacecraft Discovery journeys to the outer edge of the solar system, and two navigators become uneasy when Hal, the craft's talking computer system, demonstrates unusual behavior.