1:15 AM

TONI was in the passenger seat beside Carl Osborne when he braked to a halt alongside the gatehouse of the Kremlin. Her mother was in the back.

She handed Carl her pass and her mother's pension book. "Give these to the guard with your press card," she said. All visitors had to show identification.

Carl slid the window down and handed over the documents.

Looking across him, Toni saw Hamish McKinnon. "Hi, Hamish, it's me," she called. "I've got two visitors with me."

"Hello, Ms. Gallo," said the guard. "Is that lady in the back holding a dog?"

"Don't ask," she said.

Hamish copied the names and handed back the press card and the pension book. "You'll find Steve in reception."

"Are the phones working?"

"Not yet. The repair crew just left to fetch a spare part." He lifted the barrier, and Carl drove in.

Toni suppressed a wave of irritation at Hibernian Telecom. On a night such as this, they really should carry all the parts they might need. The weather was continuing to get worse, and the roads might soon be impassable. She doubted they would be back before morning.

This spoiled a little plan she had. She had been hoping to phone Stanley in the morning and tell him that there had been a minor problem at the Kremlin overnight but she had solved it—then make arrangements to meet him later in the day. Now it seemed her report might not be so satisfactory.

Carl pulled up at the main entrance. "Wait here," Toni said, and sprang out before he could argue. She did not want him in the building if she could avoid it. She ran up the steps between the stone lions and pushed through the door. She was surprised to see no one at the reception desk.

She hesitated. One of the guards might be on patrol, but they should not both have gone. They could be anywhere in the building—and the door was unguarded.

She headed for the control room. The monitors would show where the guards were.

She was astonished to find the control room empty.

Her heart seemed to go cold. This was very bad. Four guards missing—this was not just a divergence from procedure. Something was wrong.

She looked again at the monitors. They all showed empty rooms. If four guards were in the building, one of them should appear on a monitor within seconds. But there was no movement anywhere.

Then something caught her eye. She looked more closely at the feed from BSL4.

The dateline said December 24. She checked her watch. It was after one o'clock in the morning. Today was Christmas Day, December 25. She was looking at old pictures. Someone had tampered with the feed.

She sat at the workstation and accessed the program. In three minutes she established that all the monitors covering BSL4 were showing yesterday's footage. She corrected them and looked at the screens.

In the lobby outside the changing rooms, four people were sitting on the floor. She stared at the monitor, horrified. Please, God, she thought, don't let them be dead.

One moved.

She looke............