2010: Odyssey two. By Arthur C. Clarke. 1982. Hardcover

Nine years after the ill-fated Discovery One mission to Jupiter, a joint Soviet-American crew travels to the planet to investigate the mysterious monolith orbiting the planet, the cause of the earlier mission’s failure—and what became of astronaut David Bowman. The crew includes project expert Heywood Floyd, and Dr. Chandra, the creator of HAL 9000.

What they discover is an unsettling alien conspiracy tampering with the evolution of life on Jupiter’s moons as well as that of humanity itself. Meanwhile, the being that was once Dave Bowman—the only human to unlock the mystery of the monolith—streaks toward Earth on a vital mission of its own . . .