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.

Binding Type: Paperback
Publisher: Spectra Books
Published: 09/04/1990
ISBN: 9780553288100
Pages: 304
Weight: 0.38lbs
Size: 6.85h x 4.25w x 0.98d
Award: Hugo Award - Winner
Award: Nebula Awards - Winner