Mott had had the foresight to bring photocopies of Holloway's Massachusetts booking picture. He'd handed these to some guards downstairs, he explained, and they were distributing them to hospital personnel. So far, though, no one had seen the killer.

The young cop added to Bishop, "Patricia Nolan and Miller're in the hospital's computer department, trying to figure out how bad the hack was."

Bishop nodded and then said to Shelton and Mott, "I want you to-"

Suddenly the vital signs monitor on the wall began to buzz with a loud sound. The diagram showing Jennie's heart rate was jumping frantically up and down.

Then a message popped up on the screen in glowing red type.

WARNING: Fibrillation

Jennie gasped and tilted her head up, staring at the monitor. She screamed.

"Jesus!" Bishop cried and grabbed the call button. He began pushing it frantically. Bob Shelton ran into the hallway and started shouting, "We need help here! Here! Now!"

Then the lines on the screen suddenly went flat. The warning tone changed to a piercing squeal and a new message burned onto the monitor.

WARNING: Cardiac Arrest

"Honey," Jennie sobbed. Bishop hugged her hard, feeling utterly helpless. Sweat poured from her face and she shivered but she remained conscious. Linda Sanchez ran to the door and cried, "Get a goddamn doctor in here now!"

A moment later Dr. Williston ran into the room. He glanced at the monitor and then at his patient and reached up, shut off the machine.

"Do something!" Bishop cried.

Williston listened to her chest then took her blood pressure. Then he stepped back and announced, "She's fine."

"Fine?" Mott asked.

Sanchez looked as if she was about to grab the doctor by the jacket and drag him back to his patient. "Check her again!"

"There's nothing wrong with her," he told the policewoman.

"But the monitor…" Bishop stammered.

"Malfunction," the doctor explained. "Something happened in the main computer system. Every monitor on this floor's been doing the same thing."

Jennie closed her eyes and pressed her head back in the pillow. Bishop held her tightly.

"And that injection?" the doctor continued. "I tracked it down. Somehow central pharmaceutical got an order for you to receive a vitamin shot. That's all it was."

"A vitamin?"

Bishop, trembling with relief, fought down the tears.

The doctor said, "It won't hurt you or the fetus in any way." He shook his head. "It was strange – the order went out under my name and whoever did it got my passcode to authorize it. I keep that in a private file in my computer. I can't imagine how anybody got it."

"Can't imagine," Tony Mott said with a sardonic glance at Bishop.

A man in his fifties with a military bearing walked into the room. He wore a conservative suit. He introduced himself as Les Allen. He was head of security at the hospital. Hellman, the guard in the room, nodded to Allen, who didn't respond. He asked Bishop, "What's going on here, Detective?"

Bishop told him about what had happened with his wife and the monitors.

Allen said, "So he got into our main computer… I'll bring that up with the security committee today. But at the moment what should we do? You think this guy's here someplace?"

"Oh, yeah, he's here." Bishop waved at the dark monitor above Jennie's head. "He did this as a diversion, to get us to focus on Jennie and this wing. Which means he's targeting a different patient."

"Or patients," Bob Shelton said.

Mott added, "Or somebody on the staff."

Bishop said, "This suspect likes challenges. What would be the hardest place in the hospital to break into?"

Dr. Williston and Les Allen considered this. "What do you think, Doctor? The operating suites? They all have controlled-access doors."

"That'd be my guess."

"And where are they?"

"In a separate building – you get to them through a tunnel from this wing."

"And most doctors and nurses there would be masked and gowned, right?" Linda Sanchez asked.

"Yes."

So Phate could roam his killing grounds freely. Bishop then asked, "Is there anyone being operated on right now?"

Dr. Williston laughed. "Anyone? We've got probably twenty procedures going on I'd say." He turned to Jennie. "I'll be back in ten minutes. We'll get those tests over with and get you home." He left the room.

"Let's go hunting," Bishop said to Mott, Sanchez and Shelton. He hugged Jennie again. As he left, the young security guard pulled his chair closer to the bedside. Once they were in the corridor the guard swung the door shut. Bishop heard it latch.

They walked down the hall quickly, Mott keeping his hand near his automatic, looking around, as if he were about to draw and shoot anybody who bore the least resemblance to Phate.

Bishop too felt unnerved, recalling that the killer was a chameleon and, with his disguises, could be walking past them right now and they might never know it.

They were at the elevator when something occurred to Bishop. Alarmed, he looked back toward the closed door of Jennie's room. He didn't go into the details of Phate's social engineering skills but said to Allen, "The thing about our suspect is that we're never quite sure what he'll look like next. I didn't pay much attention to that guard in my wife's room. He's about the perp's age and build. You're sure he works for your department?"

"Who? Dick Hellman back there?" Allen answered, nodding slowly. "Well, what I can tell you for sure is that he's my daughter's husband and I've known him for eight years. As far as the 'work' part of your question goes – if putting in a four-hour day during an eight-hour shift is work then I guess the answer's yes."

In the tiny canteen at the Computer Crimes Unit, Agent Art Backle rummaged futilely through the refrigerator for milk or half-and-half. Since Starbucks had arrived in the Bay area Backle hadn't drunk any other kind of coffee and he knew that the boiled-down burnt-smelling brew here would taste vile without something to take the edge off. With some disgust he poured a large dose of Coffee-mate into the cup. The liquid turned gray.

He took a bagel from the plate and bit down into what turned out to be rubber. Goddamn… He flung the phony bagel across the room, realizing of course that Gillette had sent him back here as a practical fucking joke. He decided that when the hacker went back to prison he'd -

What was that noise?

He started to turn toward the doorway.

But by the time he identified the sound as sprinting footsteps his attacker was already on top of him. He slammed into the slim agent's back, pitching him into the wall and knocking the wind out of his lungs.

The attacker flicked the lights out. The windowless room went completely black. Then the man grabbed Backle by the collar and flung him facedown to the floor. His head slammed into the concrete with a quiet thud.

Gasping for breath, the agent groped for his pistol.

But another hand got there first and lifted it away.

Who do you want to be?

Phate walked slowly down the main corridor of the state police's Computer Crimes Unit offices. He was wearing a worn, stained Pacific Gas and Electric uniform and a hard hat. Hidden just inside the coveralls was his Ka-bar knife and a large automatic pistol – a Clock – with three clips of ammunition. He carried another weapon as well but it was one that might not be recognized as such, not in the hands of a repairman: a large monkey wrench.

Who do you want to be?

Someone the cops here would trust, someone they wouldn't think twice about seeing in their midst. That's who.