"His assignment is here, with me," she said. "My father made me a promise."

"That may be," Nina said.

"You know how these things go, Alli." Sam leaned forward, grasping the inner door handle as they rolled to a stop.

"No, I don't," she said. "Not about this." She felt a sudden inexplicable fear invade her, and she felt the brush of the funeral veil. "I want to talk to my father."

"Your father is busy, Alli," Nina said. "You know that."

From out of her fear came a surge of outrage. Nina was right, of course, and this made her feel helpless. "Then tell me where Jack is," she demanded. Her green eyes were luminous in the sidelights. "And don't tell me you don't know."

Nina sighed, looked at Sam, who nodded.

"The fact is," Nina said, "we don't know where Jack is."

"He didn't check in this morning," Sam added.

Alli felt a small pulse beating in the hollow of her throat. "Why haven't you found him?"

"We've made inquiries, of course," Sam said.

"The truth is, Alli…" Nina paused. "He's vanished off the radar screen."

Alli felt a tiny scream gathering in her throat. She rolled the gold-and-platinum ring around her finger nervously. "Find him," she said tersely. "I want him with me." But even as she spoke, she understood the futility of her words. Jack was gone. If the Secret Service couldn't find him, no one could.

Sam smiled reassuringly. "Jack handpicked us to protect you. There's nothing to be concerned about."

"Alli, it's time to go," Nina said gently.

Sam opened the door, stepped out into the wan January sunshine. Alli could hear him whispering into his mike, listening intently to security updates.

Nina, half out of her seat, held Alli by the elbow. Alli smoothed down the skirt of the suit her mother had bought for her and insisted she wear. It was a mid-blue tweed with a hint of green in it that matched the color of her eyes. If she wore anything like this on campus, she'd never hear the end of it. As it was, her image would be plastered all over the papers and the evening news. She wriggled inside the suit, itchy and overheated. As was her custom, she wore a minimum amount of makeup-she had not given in on that one-and her nails were cut almost as short as a man's.

When Sam nodded, Nina urged her charge forward, and Alli emerged from the plush cocoon of the limo. She saw the Unites States Marine and Air Force bands standing at attention to either side of the inaugural platform and, on it, the Speaker of the House, who would make the Call to Order and the opening remarks; the Reverend Dr. Fred Grimes, from whom the invocation and the benediction would come; and two mezzo-sopranos from the Metropolitan Opera, who would sing arias during the musical interludes. There was the vice president and his family. And her father, chatting with the Speaker of the House while her mother, head slightly bowed, spoke in hushed tones with Grimes, who had married them.

Then, Alli was inundated by a swirl of people, voices, microphones, hundreds of camera shutters clicking like a field of crickets. Sam and Nina cut a protective swath through the straining throng, guiding her at long last up the steps of the inaugural platform, draped in the American flag, the blue-and-gold symbol of the president's office affixed to the center podium, where the speeches would be made, the swearing in would take place.

She kissed her mother as she was embraced; her father turned, smiled at her, nodding.

Her mother said, "Are you okay?" as they pulled away.

"I'm fine," Alli said in a knee-jerk reaction that she didn't quite understand. The breeze picked up and she shivered a little. As the marine band struck up its first tune, she put her hands in the pockets of her long wool coat.

Sunlight shone like beaten brass on the faces of the most important men in the Western world. She moved a step closer to her father, and he gave her that smile again. The I'm-proud-of-you smile, which meant he didn't see her at all.

The last bars of the fanfare had faded and the Speaker of the House took the podium for the Call to Order. Behind him rose the facade of the Capitol, symbol of government and freedom, its dome glimmering as if with Edward Carson's promise of a new tomorrow. Down below, among the pale fluted columns, hung three huge American flags, the Stars and Stripes billowing as gently as fields of wheat glowing in sunset.

Alli's right hand found the stitches in the satin lining of her coat, her nail opening the basting until there was a small rent. Her two fingers encountered the small glass vial that had been secreted there. As if in a dream, she lifted out the vial, closed her fist around it in her pocket. There was a ticking in her head as she counted to herself: 180 seconds. Then she would open the vial of specially prepared anthrax.

And like the contents of Pandora's box, out would come death in amber waves of grain.

PART ONE

One Month Ago

ONE

EXHAUSTED LIGHT from a winter sun swooned onto the black Ford Explorer as the vehicle crunched down the gravel drive toward the porte cochere of an impressive colonial mansion. A blaze of headlights from the armored vehicle momentarily sent a shiver of anticipation through the knot of reporters clustered around the mansion's columned entrance. They leaned forward, but could see nothing behind the bulletproof smoked-glass windows. News vans sprouting satellite feeds were drawn up as close as the squad of Secret Service agents would allow. These men-young, crew-cut, square-jawed individuals from Texas, Iowa, Nebraska-looked as sturdy as grain-fed steers.

The Explorer rolled to a stop. From its rear door, a Secret Service agent alighted, turned, tensely watched the crowd with hawk eyes as the POTUS, the President of the United States, emerged. As he climbed the brick steps, the front door opened and a distinguished-looking man emerged to vigorously shake his hand. At this moment, the news crush started, moving forward, the reporters trailing crews in their wake. Flashbulbs went off, reporters began calling out questions to the president, voices cawing urgently like crows discovering roadkill.

One of the reporters holding his microphone out toward the president had worked his way to the front of the press's storm surge, ostensibly to get himself heard over the rising din. No one took notice of him until he lunged forward. Pressing a button caused the fake mike to fall away, revealing a switchblade. Instantly, the alert agents converged on him, two of them disarming him, wrestling him to the top step before he could attack the president. Another had drawn the president into the relative safety of the open doorway, the man the president had come to see having retreated indoors and into the shadows.

All at once, shots rang out; the agent who had hold of the president instantly shielded his charge. Too late. Three, four red stains appeared on the president's shirt and lapels.

"I'd be a goner," the actual POTUS said, picking his way across the colonial mansion's reverse side in his small, quick, emblematic strides.

At his side, Dennis Paull, the Secretary of the Department of Homeland Security, who had also witnessed this latest Secret Service training session, said, "It's an unfortunate factor of the aftermath of the election, sir. The Service was obliged to hire an additional two hundred fifty agents to protect the candidates. There was very little time to train them to the depth usually required."

The president made a face. "Thank the good Lord none of them are in my detail."

"I'd never allow that to happen, sir."

The president was tall, silver-haired, possessed of the intangible trappings accruing from power. He had successfully faced down many a political opponent both at home and, increasingly, abroad. The secretary, barrel-chested, bearded, with ears as whorled as a cowrie shell, was the president's most trusted advisor. At least once a week, most often two or three times, the president saw to it that they spent private time together, chewing over both the increasingly slippery political climate and delicate matters known only to the two of them.