Clarke, Arthur C

Failing to eliminate life on Earth after their first attack, the Firstborn send a Q-bomb weapon to finish the job; and two cryogenically frozen females and a group of scientists studying the Eye, an artifact of the Firstborn, may be the only hope of finding a way to counter the onslaught.

After teenage Sri Lankan Ranjit Subramanian, a math prodigy, reconstructs and publishes the famous last theorem of Pierre de Fermat, the powerful aliens called the Grand Galactics respond to the flash of nuclear explosions and decide to exterminate humanity just as Earth's superpowers develop a new, nonlethal, way of promoting global peace.

Collects more than one hundred short stories by renowned science fiction writer Arthur C. Clarke, spanning his career from 1937 through 1999.

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.