Plowing the dark

In a digital laboratory on the shores of Puget Sound, a band of virtual-reality researchers races to complete the Cavern, an empty white room that can become a jungle, a painting, or a vast Byzantine cathedral. In a war-torn Mediterranean city, an American is held hostage, chained to a radiator in another empty white room. What can possibly join these two remote places? Only the shared imagination, a room that these people unwittingly build in common, where they are all about to meet. Adie Klarpol, a skilled but disillusioned artist, comes back to life, revived by the thrill of working with cutting-edge technology. Against the collapse of Cold War empires and the fall of the Berlin Wall, she retreats dangerously into the cyber-realities she has been hired to create. On the other side of the globe, Taimur Martin, an English teacher recovering from a failed love affair, is picked up off the streets in Beirut by Islamic fundamentalists and held in solitary captivity.