Tides of Light

The revised edition of the Nebula Award–winning author's "most adventurous, most philosophical, and most scientifically creative novel" (Houston Post).

Tides of Light is the fourth book of Gregory Benford's Galactic Center series, a classic tale of humanity's future and fate—and the greatest mystery from outer space that it has ever encountered.

Piloting an ancient starship, Killeen and the Bishop tribe escape the mech-ruled world of Snowglade. Seeking refuge on a far away planet, they discover vast wonders: an organic life-form as large as a world, a planet-coring cosmic string, a community of humans ruled by a brutal tyrant, and ultimately an alien race more awesome than any they have known before. 

As they battle for survival against these myriad dangers, Killeen and his crew will gain an unforeseen ally . . . one that may determine humanity's true destiny . . .