As he slipped the papers back into his pocket it began to rain. He looked around: no cafés where he might sit in comfort, no parks or squares where he might find some shelter from the weather. Just a desert of inherited residential wealth. If he stood on the pavement too long, he’d probably be arrested for loitering.

He pulled out his mobile phone and dialed Isherwood’s number. He was probably still on his way to the gallery. As Gabriel waited for the connection to go through, he had a mental image of Isherwood, hunched over the wheel of his shining new Jaguar motorcar, crawling along Piccadilly as if he were piloting an oil tanker through treacherous waters.

“Sorry, but I’m afraid there’s been a change in plan. The fellow who was supposed to meet you was apparently called out of town suddenly. An emergency of some sort. He was vague about it. You know how the Swiss can be, petal.”

“What am I supposed to do?”

“He sent me the security codes for the gate and the front door. You’re to let yourself in. There’s supposed to be a note for you on the table in the entrance hall explaining where you can find the painting and your accommodations.”

“Rather unorthodox, don’t you think?”

“Consider yourself fortunate. It sounds as if you’re going to have the run of the place for a few days, and you won’t have anyone watching over your shoulder while you work.”

“I suppose you’re right.”

“Let me give you the security codes. Do you have paper and pen by any chance? They’re rather long.”

“Just tell me the numbers, Julian. It’s pouring rain, and I’m getting soaked out here.”

“Ah, yes. You and your little parlor tricks. I used to have a girl at the gallery who could do the same thing.”

Isherwood rattled off two series of numbers, each eight digits in length, and severed the connection. Gabriel lifted the receiver of the security phone and punched in the numbers. A buzzer sounded; he turned the latch and stepped through the gate. At the front entrance of the house he repeated the routine, and a moment later he was standing in the darkened front hall, groping for a light switch.

The envelope lay in a large glass bowl on a carved antique table at the foot of the staircase. It was addressed to Signore Delvecchio, Gabriel’s work name. He picked up the envelope and sliced it open with his forefinger. Plain dove-gray paper, heavy bond, no letterhead. Precise careful handwriting, unsigned. He lifted it to his nose. No scent.

Gabriel began to read. The painting hung in the drawing room, a Raphael, Portrait of a Young Man. A reservation had been made for him at the Dolder Grand Hotel, about a mile away on the other side of the Zürichberg. There was food in the refrigerator. The owner would return to Zurich the following day. He would appreciate it greatly if Signore Delvecchio could begin work without delay.

Gabriel slipped the note into his pocket. So, a Raphael. It would be his second. Five years ago he had restored a small devotional piece, a Madonna and Child, based on the renowned composition of Leonardo. Gabriel could feel a tingling sensation spreading over the tips of his fingers. It was a marvelous opportunity. He was glad he had taken the job, regardless of the unorthodox arrangements.

He stepped through a passageway into a large room. It was dark, no lights burning, the heavy curtains tightly drawn. Despite the gloom he had the sensation of Middle European aristocratic clutter.

He took a few steps forward. Beneath his feet the carpet was damp. The air tasted of salt and rust. It was an odor Gabriel had smelled before. He reached down, touched his fingers to the carpet, and brought them to his face.

He was standing in blood.

THE Oriental carpet was faded and very old, and so was the dead man sprawled in the center of it. He lay facedown, and in death he was reaching forward with his right hand. He wore a double-vented blue blazer, shiny with wear in the back, and gray flannel trousers. His shoes were brown suede. One shoe, the right, had a thickened heel and sole. The trousers had ridden up along his lower leg. The skin was shockingly white, like exposed bone. The socks were mismatched.

Gabriel squatted on his haunches with the casualness of someone who was at ease around the dead. The corpse had been a tiny man-five feet in height, no more. He lay in profile, the left side of the face exposed. Through the blood, Gabriel could see a square jaw and a delicate cheekbone. The hair was thick and snowy white. It appeared that the man had been shot once, through the left eye, and that the slug had exited the back of the skull. Judging from the size of the exit wound, the weapon was a rather large-caliber handgun. Gabriel looked up and saw that the slug had shattered the mirror above the large fireplace. He suspected the old man had been dead a few hours.

He supposed he should telephone the police, but then he imagined the situation from their point of view. A foreigner in an expensive home, a corpse shot through the eye. At the very least, he would be detained for questioning. Gabriel couldn’t allow that to happen.

He rose and turned his gaze from the dead man to the Raphael. A striking image: a beautiful young man in semi-profile, sensuously lit. Gabriel guessed it had been painted while Raphael was living and working in Florence, probably between 1504 and 1508. Too bad about the old man. It would have been a pleasure to restore such a painting.

He walked back to the entrance hall, stopped and looked down. He had tracked blood across the marble floor. There was nothing to be done about it. In circumstances like these he had been trained to leave quickly without worrying about making a bit of a mess or noise.

He collected his cases, opened the door, and stepped outside. It was raining harder now, and by the time he reached the gate at the end of the flagstone walk he was no longer leaving bloody footprints.

He walked quickly until he came to a thoroughfare: the Krähbühlstrasse. The Number 6 tram slithered down the slope of the hill. He raced it to the next stop, walking quickly but not running, and hopped on without a ticket.

The streetcar jerked forward. Gabriel sat down and looked to his right. Scrawled on the carriage wall, in black indelible marker, was a swastika superimposed over a Star of David. Beneath it were two words:

JUDEN SCHEISS.

THE tram took him directly to Hauptbahnhof. Inside the terminal, in an underground shopping arcade, he purchased an exorbitantly priced pair of Bally leather boots. Upstairs in the main hall he checked the departure board. A train was leaving for Munich in fifteen minutes. From Munich he could make an evening flight back to London, where he would go directly to Isherwood’s house in South Kensington and strangle him.

He purchased a first-class ticket and walked to the toilet. In a stall he changed from his loafers into the new boots. On the way out he dropped the loafers into a rubbish bin and covered them with paper towels.

By the time he reached the platform, the train was boarding. He stepped onto the second carriage and picked his way along the corridor until he came to his compartment. It was empty. A moment later, as the train eased forward, Gabriel closed his eyes, but all he could see was the dead man lying at the foot of the Raphael, and the two words scrawled on a streetcar:

JUDEN SCHEISS.

The train slowed to a stop. They were still on the platform. Outside, in the corridor, Gabriel heard footfalls. Then the door to his compartment flew back as though blown open by a bomb, and two police officers burst inside.