Map of Bones (Sigma Force 2)

He tapped up the last picture. It was a close-up of the black electrode, only it was no longer black. “They were able to get the converted substance to adhere to the carbon rod.”

The black electrode, plated now, shone under the lamp, brilliant and unmistakable.

Grayson leaned forward in his seat. “Gold.”

6:24 P.M.

ROME, ITALY

THE CAR’S siren wailed in Rachel’s ears. She sat in the passenger seat of the Carabinieri patrol, bruised, aching, head throbbing. But all she could feel was an icy certainty that Uncle Vigor was dead. Fear threatened to strangle her, shortening her breath and narrowing her vision.

Rachel half-heard the patrolman speaking into his radio. His vehicle had been the first on the scene of her ambush on the streets. She had refused medical care and used her authority as a lieutenant to order the man to take her to the Vatican.

The car reached the bridge spanning the Tiber River. Rachel continued to stare toward her destination. Across the channel, the shining dome of St. Peter’s appeared, rising above all else. The setting sun cast it in hues of silver and gold. But what she saw rising behind the basilica lifted her from her seat. Her hands grabbed the edge of the dashboard.

A sooty column of black smoke coiled into the indigo sky.

“Uncle Vigor…”

Rachel heard the sounds of additional sirens echoing up the river. Fire engines and other emergency vehicles.

She grabbed the patrolman’s arm. She itched to shove the man out of the way and drive herself. But she was still shaken up. “Can you go any faster?”

Carabiniere Norre nodded. He was young, new to the force. He wore the black uniform with the red stripe down the legs and silver sash across his chest. He twisted the wheel and rode up onto a sidewalk to clear past a knot of traffic. The closer they got to the Vatican, the worse the congestion became. The convergence of emergency vehicles had snarled all traffic in the area.

“Aim for St. Anne’s Gate,” she ordered.

He wheeled around and managed to cut down an alley to get them within three blocks of Porta Sant’ Anna. Directly ahead, the source of the fire became clear. Beyond the walls of Vatican City, the Tower of the Winds was the second-highest point of all of Vatican City. Its top floors blazed with flames, becoming a stone torch.

Oh no…

The tower housed a part of the Vatican Archives. She knew her uncle had been searching the libraries of the Holy See. After her attack, the fire couldn’t be a mere accident.

The car suddenly braked sharply, throwing Rachel forward in her seat restraints. Her eyes were torn away from the blazing tower.

All traffic forward was blocked.

Rachel could not wait any longer. She yanked on the door handle and began to roll out.

Fingers gripped her shoulder, restraining her. “Tenente Verona,” Carabiniere Norre said. “Here. You may need this.”

Rachel stared down at the black pistol, a Beretta 92, the man’s service weapon. She took it with a nod of thanks. “Alert the station. Let General Rende of the TPC know that I’ve returned to the Vatican. He can reach me through the Secretariat’s Office.”

He nodded. “Be careful, Tenente.”

With sirens wailing from every direction, Rachel set off on foot. She shoved the pistol into the waistband of her belt and tugged her blouse free so it hung over and hid the Beretta. Out of uniform, it would not be good to be seen running toward an emergency situation with an exposed weapon.

Crowds filled the sidewalks. Rachel took to shimmying between the cars stalled in the streets, and even slid across the hood of one to continue forward. Ahead she spotted a red municipal fire engine edging through St. Anne’s Gate. It was a narrow fit. A contingent of Swiss Guards formed a barricade to either side, on high alert. No ceremonial halberds here. Each man had an assault rifle in hand.

Rachel pushed toward the guard line.

“Lieutenant Verona with the Carabinieri Corps!” she yelled, arms up, ID in hand. “I must reach Cardinal Spera!”

Expressions remained hard, unbending. Clearly they had been ordered to block all entrance to the Holy See, closing it off to all but emergency personnel. A Carabinieri lieutenant had no authority over the Swiss Guards.

But from the back of the line, a single guard pushed forward, dressed in midnight blue. Rachel recognized him as the same guard to whom she had spoken earlier. He shoved through the line and met her.

“Lieutenant Verona,” he said. “I’ve been ordered to escort you inside. Come with me.”

He turned on a heel and led her away.

She hurried to keep up as they crossed through the gate. “My uncle…Monsignor Verona…”

“I know nothing except to escort you to the eliport.” He directed her to an electric groundskeeper’s cart parked just past the gate. “Orders from Cardinal Spera.”

Rachel climbed inside. The lumbering fire engine rolled ahead of them and entered the wide yard that fronted the Vatican Museums. It joined the other emergency vehicles, including a pair of military vehicles mounted with submachine guns.

With clearance now, the guardsman turned their cart to the right, skirting the emergency traffic jam in front of the museums. Overhead, the tower continued to blaze. From somewhere on the far side, a jet of water exploded upward, trying to reach the fiery top levels. Flames lapped from windows of the top three floors. Clouds of black smoke billowed and churned. The tower was a tinderbox, stoked with masses of books, parchments, and scrolls.

It was a disaster of vast scale. What fire didn’t destroy, water and smoke would ruin. Centuries of archives, mapping Western history, gone.

Still, Rachel found all her fears centered on one concern.

Uncle Vigor.

The cart zipped past the city’s garage and continued down a paved road. It paralleled the Leonine Wall, the stone-and-mortar cliff that enclosed Vatican City. They circled the museum complex and reached the vast gardens covering the back half of the city-state. Fountains danced in the distance. The world was painted in shades of green. It seemed too pastoral for the hellish landscape behind them of smoke, fire, and siren wails.

They continued in silence to the very back of the grounds.

Their destination appeared ahead. Tucked into a walled alcove was the Vatican heliport. Converted from old tennis courts, the airfield was little more than a vast acre of concrete and some outbuildings.

On the tarmac, a single helicopter rested on its skids, isolated from the tumult. Its blades were slowly beginning to spin, gaining speed. The engine whined. Rachel knew the solid white aircraft. It was the pope’s private helicopter, nicknamed the “Holycopter.”