In a Seattle research laboratory, Dr. David Harrison has accidentally stumbled upon something truly remarkable: the Twistor Effect, an unparalleled scientific phenomenon that opens doors into numerous alternate universes. His discovery is a breakthrough of earth-shattering proportions & the most dangerous find of the century, for it offers unlimited power to anyone who possesses its secrets. Now David Harrison has become the target of industrial spies and cold-blooded corporate killers - forcing him to seek sanctuary in a strange and unexplored "shadow world." But there's no telling what awaits him beyond its portals. And, once inside, he might never escape. Author Biography: John Cramer is the author of the acclaimed hard-SF novel, Twistor, and writes a bi-monthly column for Analog Science Fiction/Science Fact magazine. He lives in Seattle, WA, where he is a professor of physics at the University of Washington, and travels regularly to Switzerland to work at the particle accelerator at CERN.