Miles farther, when Ryan turned off Pacific Coast Highway onto Newport Coast Road, he glanced repeatedly in the rearview mirror, looking for the silver Lexus and the chopped Ford pickup.

At home, staircase to hallway to room after room, Ryan did not encounter Lee or Kay Ting, or Lee’s assistant, Donnie, or Kay’s assistant, Renata.

He heard fading footsteps on a limestone floor, a door close in another room. A distant voice and a single response were both unintelligible.

In the kitchen, he swiftly prepared an early lunch. He avoided fresh foods and containers that were already open, in favor of items in vacuum-sealed cans and jars.

A salad of button mushrooms, artichoke hearts, yellow beets, garbanzo beans, and white asparagus was enlivened with Italian dressing from a previously untapped bottle and by grated Parmesan from a new can that he opened after inspecting it for tampering.

He put the salad on a tray with a sealed package of imported panettone and utensils. After a hesitation, he added a wineglass and a half bottle of Far Niente Chardonnay.

As he carried the tray to his office in the west wing of the main floor, he saw no one, though a vacuum cleaner started in a far chamber.

None of the rooms featured security cameras, but the hallways had them. A video record of hallway traffic was stored on DVDs to be reviewed only in the event that the house was invaded by burglars or victimized by a sneak thief.

No one monitored the hallway cameras in real time. Nevertheless, Ryan felt watched.

ELEVEN

In his home office, Ryan ate at his desk, gazing out of the big windows at the swimming pool in the foreground, at the sea in the distance.

The phone rang: his most private line, a number possessed by a handful of people. The caller-ID window told him it was Samantha.

“Hey, Winky, you still aging gracefully?”

“Well, I haven’t grown any hair in my ears yet.”

“That’s a good sign.”

“And I haven’t developed man breasts.”

“You paint an irresistible portrait of yourself. Listen, I’m sorry about Wednesday night.”

“What about Wednesday night?”

“I brought the whole evening down, talking about Teresa, pulling her feeding tube, the starvation thing.”

“You never bring me down, Sam.”

“You’re sweet. But I want to make it up to you. Come over for dinner tonight. I’ll make saltimbocca alla romana.”

“I love your saltimbocca.”

“With polenta.”

“This is a lot of work.”

“Caponata to start.”

He had no reason to distrust her.

“Why don’t we eat out?” he suggested. “Then there’s no cleanup.”

“I’ll do the cleaning up.”

He loved her. She loved him. She was a good cook. He was succumbing to irrational fear.

“It’s so much work,” he said. “I heard about this great new restaurant.”

“What’s the name?”

The great new restaurant was a lie. He would have to find one. He said, “I want to surprise you.”

“Is something wrong?”

“I’m just in a going-out mood. I want to try this new place.”

They talked about what she should wear, what time he would pick her up.

“Love you,” she said.

“Love you,” he echoed, and disconnected.

He had eaten no more than a third of his lunch, but he had lost his appetite.

With a glass of Far Niente, he went outside, crossed the patio, and stood watching satiny ribbons of sunlight shimmer through the variegated-blue Italian-glass tiles that lined the swimming pool.

He became aware that he was fingering the bandage on his neck.

As Gypsies read tea leaves and palms, some shaman would read those tissue samples and tell him his fate.

The mental image of a Gypsy by candlelight led him to think of stories in which a lock of a man’s hair was used by a practitioner of black magic to cast a curse upon him.

In the hands of a voodooist, three moist pieces of a man’s heart-more intimate and therefore more powerful than a few strands of hair-might be used to destroy him in ways singularly horrific.

When a centipedal chill climbed his spine, when his heart accelerated, when a thin sweat prickled along his hairline, Ryan chastised himself for surrendering to unreason. A warrantless suspicion about Sam had metastasized into superstitious nonsense.

He went back into his office and phoned Samantha. “On second thought, I’d rather have your saltimbocca.”

“What changed your mind?”

“I don’t want to share you with a gaggle of envious men.”

“What gaggle?”

“The waiter, the busboy, and every man in the restaurant who would be lucky enough to lay eyes on you.”

“Sometimes, Winky, you walk a thin line between being a true romantic and a bullshit artist.”

“I’m only speaking from the heart.”

“Well, sweetie, if you’re going to do more of that this evening, bring a shovel. I don’t have one.”

She hung up, and before Ryan could lower the handset from his ear, he heard what might have been a brief, stifled laugh.

Although Sam had disconnected, the dial tone did not return. Ryan listened to the faint hollow hiss of an open line.

“Who’s there?” he asked.

No one answered.

The house phone was a digital hybrid system with ten lines, plus intercom and doorbell functions. None of the phone lines was shared, and no other phones in the house could eavesdrop on a line that was in use.

He waited for another telltale sound, like guarded breathing or a background noise in the room where the listener sat, but he was not rewarded. He had nothing more than an impression of someone out there in the ether, a hostile presence that might or might not be real.

At last he returned the handset to the cradle.

By four o’clock Friday afternoon, sooner than promised, Wilson Mott provided by e-mail a background report on Samantha’s mother.

As soon as Ryan had a printout, he sent the e-mail to trash, and at once deleted it from trash to ensure no one could retrieve it. He sat on a lounge chair by the pool to read Mott’s findings.

Rebecca Lorraine Reach, fifty-six, lived in a Las Vegas apartment complex called the Oasis. She was employed as a blackjack dealer at one of the classier casinos.

By means most likely questionable, Mott had obtained the current photo of Rebecca on file with the Nevada Gaming Control Board. She looked no older than forty-and remarkably like her daughter.

She owned a white Ford Explorer. Her driving record was clean.

She had never been a party to a criminal or civil action in Nevada. Her credit report indicated a responsible borrowing history.

According to a neighbor, Amy Crocker, Rebecca rarely socialized with other tenants at the Oasis, had a “my-poop-don’t-smell attitude,” never spoke of having a daughter, either dead or alive, and was in a romantic relationship with a man named Spencer Barghest.

Mott reported that Barghest had been indicted twice for murder, in Texas, and twice had been judged innocent. As a noted right-to-die activist, he had been present at scores of assisted suicides. There was reason to believe that some of those whom he had assisted were not terminally-or even chronically-ill, and that the signatures on their requests for surcease from suffering were forged.

Ryan had no idea how an assisted suicide was effectuated. Maybe Barghest supplied an overdose of sedatives, which would be a painless poison but a kind of poison nonetheless.

Mott’s report included a photo of Spencer Barghest. He had an ideal face for a stand-up comic: agreeable but rubbery features, a knowing yet ingratiating grin, and a shock of white hair cut in a punkish bristle that looked amusing on a fiftysomething guy.