The Coming of the Quantum Cats

A brilliant novel of alternate universes by an award-winning science fiction master

A breakthrough in quantum physics has shattered the boundaries between alternate worlds. History is in chaos as billions of possible futures collide. As a conquering army mounts an invasion of neighboring realities, a handful of men and women from a dozen different timelines risk their lives to safeguard an infinity of worlds.

Blending thrilling suspense with brilliant scientific speculation, Frederik Pohl’s...