He checked the coordinates on the handheld GPS receiver—they now matched those given in the demand letter. He pulled into a small parking lot and got out of the Bureau car, a ponderous Crown Victoria chosen for its obviousness. A brief chill shuddered along his limbs as he stretched nervously. An unlit sign above the single-story building identified it. “It is the Kittery Point Yacht Club,” he whispered into the microphone taped to his chest, confirming his location. Fearing the Pentad might be watching the drop site, the FBI had conducted only a satellite reconnaissance of the coordinates, revealing the yacht club as the likely destination.

“Copy,” answered one of the dozen surveillance agents who had been following him at a discreet distance since he left the federal building in Boston.

West ran his tongue across his lips. The taste of salt air reminded him of his navy training, and that no matter what lay ahead, he was capable of handling it. His job was to drop the money and get out. The agents following him would deal with whoever tried to pick it up. The canvas bag he pulled out of the backseat was carefully weighted and shaped to give the impression it contained the full amount in hundred-dollar bills, but it contained only a thousand dollars, enough to make the crime a felony once delivered and retrieved.

Although the Rubaco Pentad appeared to be a politically driven domestic terrorism group, its demand for a million dollars was still technically extortion. And extortion, he had been taught during new-agents training, is simply a crime of intimidation at an anonymous distance. The victim has to be scared enough by the criminal’s threat to do two things without question: part with the cash, and not contact the authorities. Each party has its own advantages. The extortionist has anonymity, while all law enforcement has to do is never lose contact with the money. Most cases wind up a draw: the criminal doesn’t get the money, and law enforcement is unable to identify him. The would-be extortionist keeps from going to jail, and the Bureau justifies, in part, its budget requests. When the occasional arrest is made, it’s because the extortionist thought he had come up with an original, foolproof gimmick to retrieve the money. “That’s all there is to extortion,” the instructor had declared. “There are no variations. The Bureau’s been around for a century and no one has been able to figure out a way to do it differently.”

But the Rubaco Pentad changed everything. After murdering a former Hollywood reporter a month earlier, it had demanded one million dollars to prevent the next killing. What was different about the Pentad’s crime, other than the before-the-fact violence, was that the demand was made directly to the director of the FBI. In extortion or kidnapping drops, the Bureau always had at least some degree of surprise on its side, but the Pentad had taken that advantage away, leaving the agency unsure what to do next. The FBI was being told not only to come up with the money, but also to deliver it. Evidently the group felt its plan was so flawless that it could afford to humiliate the Bureau and still get away with the money.

The clear New Hampshire sky was full of stars; a half-moon hung distantly in the northeast. West looked around for some indication of what he was supposed to do next. He checked the coordinates on the GPS again. They matched those in the instructions exactly. Maybe he was just supposed to wait. He put the bag down and reread a copy of the demand note.

FBI, Only your unconditional compliance with the following two conditions will prevent the next murder: 1. Delivery of $1,000,000 in hundred-dollar bills at precisely 9:42 P.M . on August 14 at 43.072N 70.546W. 2. The public or media must not learn about the demand for money.

If either condition is violated, even by a “leak,” the next person, a politician we have selected, will die. Although we doubt your ability to comply fully, we’re willing to let the world-famous FBI try to get it right the first time. If not, this war will get progressively more expensive in terms of lives as well as money. Neither of which are we necessarily opposed to. If the FBI continues to violate the rights of this country’s citizens, the money will be used to finance much more drastic measures. More lives will be taken, and not one at a time. The FBI will be fully credited with the resulting mass destruction. Make sure your delivery boy is a good swimmer. The Rubaco Pentad

West checked his watch. It was almost nine thirty. Time was getting short.

Of course, he thought, the water. They wanted a good swimmer. He picked up the bag and walked across the parking lot tarmac and around behind the club. There was a waist-high fence that separated the asphalt from the grassy slope that led to the Piscataqua River. He vaulted over it and walked down to the edge. Music from inside the club lilted softly behind him.

Twenty yards to his right, he could see a faint optic-green glow among a cluster of large shrubs. Under them was a black tarp with a glow-in-the-dark arrow painted on top. The Pentad would probably have left it during the day when the paint would not have luminesced and been noticeable. The arrow pointed to a building on an island in the river, which was dimly silhouetted by the moonlight. It was a large white structure that, because of the notched turrets at either end, looked like a medieval castle.

The tide appeared to be out, making West wonder if he was supposed to swim across the river, roughly two hundred yards. He spoke into the mike on his chest. “Can someone find out what time low tide is here?” The entire operation was being monitored in the Boston office’s major-case room.

After a few minutes someone said, “Nine forty-two p.m.” That answered West’s question about crossing the river. It was the exact time given in the instructions. Slack tide, the time of least current. Under the tarp were a scuba tank, fins, and a mask. At first glance the tank appeared old-fashioned, but it wasn’t the tank. It was the harness that held it. Modern tanks come with a zippered vest or at least padded straps that divers can get in and out of easily. This one was fitted with excessively long black nylon webbing, crisscrossed unnecessarily, using far too much strapping. Some of it had been doubled in places that weren’t necessary, and although it would be uncomfortable, it looked functional. Placed inside the mask was a wrist compass, which he strapped on. West explained over the radio what was going on. “Can you find out something about the building on the other side? It looks like that’s where I’m heading.”

West stripped down to his swimsuit. The “good swimmer” portion of the demand letter had been interpreted as an attempt by the Pentad to neutralize any FBI electronic devices, so the office technical agent had put a waterproof bag with a neck strap in a side pocket of the larger moneybag. Next to it was an underwater flashlight. Also a wax-sealed container had been jury-rigged by the head firearms instructor, who had placed a Smith & Wesson snubnose inside it.

It was now nine forty. As West started to slip on the fins provided, he found a folded piece of paper inside. “34°” was the only thing written on it. He held up his wrist and checked the heading to the “castle.” It was exactly thirty-four degrees.

“Command, it looks like they want me to swim underwater straight to that building. Any idea what it is yet?”

“We’ve got the head resident agent in Portsmouth on the line. He says it’s a hundred-year-old naval prison. Been closed for thirty years. That’s Seavey’s Island you’re heading to. It’s a secure naval shipyard now. We’ve got some of the surveillance units already at the main gate. They’ll be on your land side by the time you get across.”