“All right,” said Zack. He stood back, a yard away. Quinn could smell the man’s sweat. “You’re clean. Put that pencil back, and climb in the trunk.”

Quinn did as he was bid. The last light he saw was before the large rectangular lid of the trunk came down on him. Air holes had already been punched in the floor to accommodate Simon Cormack three weeks earlier. It was stuffy but bearable and, despite his length, large enough, provided he remained crouched in fetal position-which meant he nearly gagged from the smell of almonds.

Though he could not see it, the car swung in a U-turn, and the gunman ran forward and climbed into the backseat. All three men removed their masks and track-suit tops, revealing shirts, ties, and jackets. The track-suit tops went into the back, on top of the Skorpion machine pistol. When they were ready, the car glided out of the warehouse, Zack himself now back behind the wheel, and headed toward their hideaway.

It took an hour and a half to reach the attached garage of the house forty miles out of London. Zack drove always at the proper speed, his companions upright and silent in their seats. For both these men it had been their first time out of the house in three weeks.

When the garage door was closed, all three men pulled on their track suits and masks, and one went into the house to warn the fourth. Only when they were ready did Zack open the trunk of the Volvo. Quinn was stiff, and blinked in the electric light of the garage. He had removed the pencil from the jaws of the clothespin and held it in his teeth.

“All right, all right,” said Zack. “No need for that. We’re going to show you the kid. But when you go through the house you wear this.”

He held up a cowled hood. Quinn nodded. Zack pulled it over Quinn’s head. There was a chance they would try to rush him, but it would take only a fraction of a second to release his grip on the open clothespin. They led him, left hand aloft, through into the house, down a short passage and then some cellar steps. He heard three loud knocks on a door of some kind, then a pause. He heard a door creak open and he was pushed into a room. He stood there alone, hearing the rasp of bolts.

“You can take the hood off,” said Zack’s voice. He was speaking through the peephole in the cellar door. Quinn used his right hand to remove his hood. He was in a bare cellar: concrete floor, concrete walls, perhaps a wine cellar converted to a new purpose. On a steel-frame bed against the far wall sat a lanky figure, his head and shoulders covered by another black hood. There were two knocks on the door. As if on command the figure on the bed tugged off his hood.

Simon Cormack stared in amazement at the tall man near the door, his raincoat half open, holding up a clothespin in his left hand. Quinn looked back at the President’s son.

“Hi there, Simon. You okay, kid?” A voice from home.

“Who are you?” he whispered.

“Well, the negotiator. We’ve been worried about you. You okay?”

“Yeah, I’m… fine.”

There were three knocks on the door. The young man pulled on his hood. The door opened. Zack stood there. Masked. Armed.

“Well, there he is. Now, the diamonds.”

“Sure,” said Quinn. “You kept your deal. I keep mine.”

He replaced the pencil in the jaws of the clothespin, and let it hang from its wires to his waist. He slipped off the raincoat and ripped the wooden box from his chest. From the center he took the flat velour package of gems and held them out. Zack took them and passed them to a man in the passage behind him. His gun was still on Quinn.

“I’ll take the bomb, too,” he said. “You’re not blowing your way out of here with it.”

Quinn folded the wires and clothespin into the space left in the open box, pulled the wires out of the beige substance. The wires had no detonators attached to the ends of them. Quinn twisted a piece of the substance off one of the blocks and tasted it.

“Never could develop a taste for marzipan,” he said. “Too sweet for me.”

Zack stared at the assembly of household items lying in the box in his free hand.

“Marzipan?”

“The best that Marylebone High Street can offer.”

“I should bloody kill you, Quinn.”

“You could, but I hope you won’t. No need, Zack. You got what you want. Like I said, pros kill when they have to. Examine the diamonds in peace, make your escape, let the kid and me stay here till you phone the police.”

Zack closed the door and bolted it behind him. He spoke through the peephole.

“I’ll say this for you, Yank. You got balls.”

Then the peephole closed. Quinn turned to the figure on the bed and pulled off his hood for him. He sat down beside the boy.

“Now, I’d better bring you up to date a bit. A few more hours, if all goes well, and we should be out of here and heading for home. By the way, your mom and dad send their love.”

He ruffled the young man’s tangled hair. Simon Cormack’s eyes filled with tears and he began to cry uncontrollably. He tried to wipe them away on the sleeve of his plaid shirt, but it was no good. Quinn wrapped one arm around the thin shoulders and remembered a day long ago in the jungles along the Mekong; the first time he was ever in combat, and how he survived while others died, and how afterward the sheer relief caused the tears to come and he could not stop them.

When Simon stopped and began to bombard him with questions about home, Quinn had a chance to have a look at the youth. Bearded, moustached, dirty, but otherwise in good shape. They’d fed him and had the decency to give him fresh clothes: the plaid shirt, blue jeans, and a broad leather belt with an embossed brass buckle to hold them up-camping-shop gear but adequate against the chill of November.

There seemed to be some kind of a row going on upstairs. Quinn could vaguely hear raised voices, principal among them Zack’s. The sounds were too indistinct for him to hear the words, but the tone was clear enough. The man was angry. Quinn’s brow furrowed; he had not checked the stones himself-he had not the skill to tell real diamonds from good forgeries-but now prayed no one had been foolish enough to insert a proportion of paste among the gems.

In fact that was not the reason for the dispute. After several minutes it calmed down. In an upstairs bedroom-the kidnappers tended to avoid the downstairs rooms during daylight hours, despite the thick net curtains that screened them-the South African was seated at a table brought up there for the purpose. The table was covered by a bed sheet, the slit velvet packet lay empty on the bed, and all four men gazed in awe at a small mountain of uncut diamonds.

Using a spatula, the South African began to divide the pile into smaller ones, then smaller again, until he had separated the mountain into twenty-five small hillocks. He gestured to Zack to choose one mound. Zack shrugged, picked one in the middle-approximately a thousand stones out of the twenty-five thousand on the table.

Without a word the South African began to scoop up the other twenty-four piles and tip them one by one into a stout canvas bag with a drawstring at the top. When the selected pile alone remained, he switched on a powerful reading lamp above the table, took a jeweler’s loupe from his pocket, a pair of tweezers in his right hand, and held up the first stone to the light.

After several seconds he grunted and nodded, dropping the diamond into the open-topped canvas bag. It would take six hours to examine all thousand stones.

The kidnappers had chosen well. Top quality diamonds, even small ones, are normally “sourced” with a certificate when released to the trade by the Central Selling Organization, which dominates the world diamond trade, handling over 85 percent of stones passing from the mines to the trade. Even the U.S.S.R. with its Siberian extractions is smart enough not to break this lucrative cartel. Large stones of lesser quality are also usually sold with a certificate of provenance.