ALternate Societies

Hominids

By Robert J. Sawyer

In a parallel world in which Neanderthals, rather than homo sapiens, became the dominant intelligent species, a dangerous scientific experiment traps a Neanderthal physicist on Earth.

In the twenty-second century Earth obtains limitless, free energy from a source science little understands: an exchange between Earth and a parallel universe, using a process devised by the aliens. But even free energy has a price. The transference process itself will eventually lead to the destruction of the Earth's Sun—and of Earth itself. Only a few know the terrifying truth—an outcast Earth scientist, a rebellious alien inhabitant of a dying planet, a lunar-born human intuitionist who senses the imminent annihilation of the Sun. They know the truth—but who will listen? They have foreseen the cost of abundant energy—but who will believe? These few beings, human and alien, hold the key to Earth's survival.

The World of Null-A

By A. E. van Vogt

Presents the science fiction classic set in the year 2650, where the Games Machine--twenty-five thousand electronic brains--sets the course of people's lives.

ALternate Societies

Hominids

The Mote in God's Eye

None

None

None

The Gods Themselves

The World of Null-A