Clarke's novel written alongside Kubrick's film, and it explains the ending.
Clarke's four-book sequence, 2001 to 3001; each one restarts from the film before it rather than the novel.
Frank Poole is recovered a thousand years after HAL threw him into space, and wakes in a ring city built around the Earth.
Heywood Floyd lands on Halley's Comet, then a hijacking puts him down on Europa, the one world humanity was warned to stay away from.
A joint Soviet-American crew flies back to Jupiter to board the abandoned Discovery and find out what HAL was hiding.
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