The place where all this occurred was the Palace of Knossos, lovingly restored in the early part of the twentieth century by the wealthy English archaeologist Sir Arthur Evans. There an almost modern civilization had flowered to magnificent heights, then mysteriously vanished. The path leading to the palace down the hill was becoming wider as they walked, opening on the distant olive groves in the valley. The vista was stunning, probably the reason it had been built here.

He looked over and noticed she was digging in her purse again. This time she drew out a pack of Dunhills. He watched while she flicked a gold lighter, the one he'd given her as a present so long ago, emblazoned with a lapis lazuli skull and crossbones. At the time, the hint had worked. She'd quit.

"The return of the death wish? When did you start that again?"

"Last week." She defiantly took a puff.

"Any particular reason?"

"No, darling, I just did it." She exhaled. "I'm wound up. I'm . . . I'm scared. Michael, for godsake, how many reasons am I supposed to need?"

"Hey, lighten up." He'd quit a month after they met, but it hadn't been a big deal. "I've mellowed out from the old days. Life is like most other things—a lot more fun when you don't take it too seriously."

They were moving across the empty parking lot, headed for the entrance to the palace. It had once been a twelve-hundred-room labyrinth, perhaps deliberately confusing. Now the upper courtyard and chambers lay exposed to the sky, their massive red-and-ocher columns glistening in the waning sunlight. The columns tapered downward, as though tree trunks had been planted upside down to prevent resprouting.

It was a poetic place to meet Eva again, he thought. And thoroughly bizarre as well. She'd gotten her Ph.D. in linguistics, specializing in ancient Aegean languages, then a few months later she'd surprised everybody by accepting a slot at the National Security Agency, that sprawling electronic beehive of eavesdropping that lies midway between Washington and Baltimore, on the thousand acres of Fort Meade. It'd seemed a startling about-face at the time, but maybe it made sense. Besides, it was that or teaching.

NSA was a midsized city, producing among other things forty tons of classified paper trash a day. Its official insignia, appropriately, was a fierce eagle clasping a key—whether to unlock the secrets of others or to protect its own was unclear. Eva's particular branch, SIGINT—for signals intelligence—was an operation so secret NSA refused even to admit it existed. Employing ten acres of mainframe computers, Eva's SIGINT group monitored and analyzed every Russian transmission anywhere: their satellite downlinks, the microwave telephone networks within the Soviet Union, the chatter of civilian and military pilots, missile telemetry far above the Pacific, the split-second bursts of submarines reporting to base, even the limousine radiophone trysts between Politburo members and their mistresses. The instant an electromagnetic pulse left the earth, no matter its form or frequency, it belonged to the giant electronic ears of the NSA.