"No," she said, decisively. Then, just as decisively, "Yes." Food and drink dealt with, Jessica turned to the string quartet and asked them, for the third time that evening, exactly what they planned to play.

Clarence opened the double doors to check on the crowd. It was worse than he had thought: there had to be more than a hundred people in the hall. And they weren't just people. They were People. Some of them were even Personalities.

"Excuse me," said the chairman of the Arts Council. "The invitations said eight o'clock sharp. It's twenty past eight already."

"We'll just be a few more minutes," reassured Clarence, smoothly. "Security arrangements."

A woman in a hat bore down on him. Her voice was stentorian, bullying, and decidedly parliamentary. "Young man," she announced. "Do you know who I am?"

"Not really, no," lied Clarence, who knew exactly who all of them were. "Hold on—I'll see if anyone in here does." He shut the door behind him. "Jessica? They're going to riot."

"Don't exaggerate, Clarence." She was moving around the room like a green silk whirlwind, positioning her serving staff, with their trays of canapes or drinks, in strategic corners of the hall; checking the public-address system, the podium, the curtain, and the pull-rope. "I can see the headlines now," said Clarence, unfolding an imaginary newspaper. " 'Geritol Billionaires Crush Marketing Babe in Museum Canape Dash Horror.' "

Somebody began knocking at the door. The volume in the hallway began to increase. Somebody was saying, very loudly, "Excuse me. Um. Excuse me." Someone else was informing the crowd that it was a disgrace, quite simply a disgrace, no other word for it. "Executive decision," said Clarence, suddenly. "I'm letting them in."

Jessica shouted, "No! If you—"

But it was too late. The doors were open, and the horde was pushing its way into the hall. The expression on Jessica's face morphed from one of horror to one of charmed delight. She shimmered toward the door. "Baroness," she said, with a happy smile. "I can't tell you how delighted we are that you were able to come to our little exhibition this evening. Mister Stockton's been unavoidably delayed, but he'll be here momentarily. Please, have some canapes . . . " Over the baroness's mink-draped shoulder, Clarence winked at her, cheerfully. Jessica ran through all the bad words she knew in her head. As soon as the baroness had headed for the vol-au-vents, Jessica walked over to Clarence and, in a whisper, and still smiling, called him several of them.

Richard froze. A security guard was coming straight toward them, the beam of his flashlight flashing from side to side. Richard looked around for somewhere to hide.

Too late. Another guard was walking their way, past the huge statues of dead Greek gods, flashlight beam swinging. "All right?" called the first guard. The other guard kept coming, and stopped just beside Richard and Door.

"I suppose," she said. "I've already had to stop a couple of idiots in suits from carving their initials on the Rosetta stone. I hate these functions."

The first guard shone his flashlight straight into Richard's eyes, then let the beam slide off, skittering over shadows. "I keep telling you," he said, with the satisfied relish of any true prophet, "it's The Masque of the Red Death all over again. A decadent elite party, while civilization crumbles about their ears." He picked his nose, wiped it on the leather sole of his well-polished black boot.

The second guard sighed. "Thank you, Gerald. Right, back on patrol."

The guards walked out of the hall together. "Last one of these events we found someone had puked in a sarcophagus," said one of the guards, and then the door closed behind them.

"If you're part of London Below," said Door to Richard, in a conversational voice, as they walked, side by side, into the next hall, "they normally don't even notice you exist unless you stop and talk to them. And even then, they forget you pretty quickly."

"But I saw you," said Richard. It had been bothering him for a while.

"I know," said Door. "Isn't that odd?"

"Everything's odd," said Richard, with feeling. The string music was getting louder. The surges of anxiety were somehow worse up here in London Above, where he was forced to reconcile these two universes. At least below, he could just proceed dreamlike, putting one foot in front of the other like a sleepwalker.

"The Angelus is through there," announced Door, interrupting his reverie, pointing to the direction from which the music was coming.

"How do you know?"

"I know," she said, with utter certainty. "Come on." They stepped out of the darkness into a lighted corridor. There was a huge sign hanging across the corridor. It said:

ANGELS OVER ENGLAND AN EXHIBITION AT THE BRITISH MUSEUM Sponsored by Stocktons PLC

They crossed the corridor and walked through an open door, into a large room in which a party was going on.

There was a string quartet playing, and a number of serving staff were providing a roomful of well-dressed people with food and drink. There was a small stage in one corner of the room, with a podium on it, beside a high curtain.

The room was completely filled with angels.

There were statues of angels on tiny plinths. There were paintings of angels on the walls. There were angel frescoes. There were huge angels and tiny angels, stiff angels and amiable angels, angels with wings and haloes and angels with neither, warlike angels and peaceable angels. There were modern angels and classical angels. Hundreds upon hundreds of angels of every size and shape. Western angels, Middle Eastern angels, Eastern angels. Michelangelo angels. Joel Peter Witkin angels, Picasso angels, War-hoi angels. Mr. Stockton's angel collection was "indiscriminate to the point of trashiness, but certainly impressive in its eclecticism" (Time Out).

"Would you think," Richard asked, "that I was being picky if I pointed out that trying to find something with an angel on it in here is going to be like trying to find a needle in an oh my God it's Jessica." Richard felt the blood drain from his face. Until now he had thought that that was simply a figure of speech. He hadn't thought it actually happened in real life.

"Someone you knew?" asked Door. Richard nodded. "She was my. Well. We were going to be married. We've been together for a couple of years. She was with me when I found you. She was the one on the. She left that message. On the answering machine." He pointed across the room: Jessica was making animated conversation with Sir Andrew Lloyd Webber, Bob Geldof, and a bespectacled gentleman who looked suspiciously like a Saatchi. Every few minutes she checked her watch and glanced toward the door.

"Her?" said Door, recognizing the woman. Then, obviously feeling that she should say something nice about someone Richard had cared for, she said, "Well, she's very . . . " and she paused, and thought, and then said, " . . . clean."

Richard stared across the room. "Will she . . . is she going to be upset that we're here?"

"I doubt it," said Door. "Frankly, unless you do something stupid, like talk to her, she probably won't even notice you." And then, with more enthusiasm, she said, "Food!" She descended on the canapes like a small, smut-nosed girl in a too-large leather jacket who had not eaten properly for sometime. Enormous quantities of food were immediately crammed into her mouth, masticated and swallowed, while, at the same time, the more substantial sandwiches were wrapped in paper napkins and placed into her pockets. Then, with a paper plate heaped high with chicken legs, melon slices, mushroom vol-au-vents, caviar puffs, and small venison sausages, she began to circle the room, staring intently at each and every angelic artefact.