Dr. Tarver intended to be ready.

Chris was working late in his studio when he sensed that he was not alone. He'd been running footage on the Apple, using the familiar routine of reviewing and editing video to occupy his conscious mind, while on a deeper level his brain worked out what his next step should be. His first thought upon sensing another human presence was that Ben had awakened. Chris saved the file he was working on, then walked down the hall toward the back room of the converted barn. Any other night, he would have put Ben to bed and then come out to the studio to work alone. But fifty yards of darkness separated the studio from the house, so tonight he'd let the boy fall asleep on the sofa where he and Thora had made love two nights ago. Once Ben was dead to the world, Chris had moved him to an old twin bed in the back room.

"Ben?" he called softly, opening the door.

Ben lay stomach-down on the bed, fast asleep. Chris stared for a second, then rushed back to the front room and switched off the light. After listening carefully for twenty seconds, he edged up to the window and drew back the curtain. The darkness just outside the studio slowly revealed itself to be empty. Beyond that lay the black gulf between the studio and the house. Feeling a little foolish, he switched on the light and went back to his workstation.

He was reaching for the flywheel when a sharp knock sounded at the studio door. He had no firearms out here, but an aluminum baseball bat was propped beside the door, left there after an informal batting practice. He jumped up, grabbed the bat, and went to the door.

"Who's there?"

"It's Alex," said a recognizably female voice. "Alex Morse."

He yanked open the door. Alex stood there in the same clothes she'd worn in the cemetery that afternoon, and she looked still more drawn and confused, if that was possible. In her hand was a black automatic.

"What the hell are you doing?" he demanded. "If I'd had a gun, I might have shot you!"

"I'm sorry for just showing up like this. I tried to call. I know I said I'd wait, but…Can we go inside?"

"The published number only rings in the main house."

Alex nodded an exaggerated apology. Her eyes were still ringed with black shadows. "Can we go in?"

"Yeah."

She pushed him backward and closed the door behind them.

"Have you slept at all since I saw you last?" Chris asked.

"No. I picked up the prescription, but I was afraid to take it. I had to drive back to Jackson to see my mother. She's going down fast, but she was awake for a little while, and she was asking for me."

He motioned for Alex to sit on the sofa opposite his workstation. After she did, he rolled his chair across the hardwood floor and sat in front of her.

"Why are you carrying your gun?"

She set the pistol on the sofa beside her. "I'll tell you in a minute. Has Thora called you tonight?"

"Oh, yeah. She's having a great time. She and Laura had full-body mud baths this afternoon."

"How long ago did she call?"

"I don't know. A good while ago. Ben was awake."

"Did she ask if you were in the house or the studio?"

Chris leaned back in his chair. "She wouldn't have to. My private phone only rings out here. What are you doing here, Alex?"

"I came back from Jackson because I knew that once Thora left town, someone might make a move against you. I've been watching your house for the last three hours."

"Why? And from where?"

"I parked across the road, in the carport of that house that's for sale."

"Did you see anything?"

"When I pulled into Elgin, I passed a vehicle coming out. The driver had his brights on, but it looked like a van. A white van. Does anybody who lives back in here own a white van?"

He thought about it. "I don't think so. But there are about sixty houses out in these woods, even though it looks like wilderness. Also, we get a fair number of strangers out here. Kids parking, or nosy people just trying to check out the houses."

This didn't mollify Alex. "About fifteen minutes ago, another vehicle drove slowly down the road. It came around the last curve, but instead of going on toward your house, it nosed into the drive of the house where I was parked. It came far enough up the hill for its lights to illuminate my car, then stopped and backed out."

That sounded like teenagers looking for a place to make out. "Did they see you?"

"I don't think so. I took cover pretty quickly."

"Could you ID the vehicle?"

She shook her head. "When he backed out, he didn't turn around. He backed all the way around the curve."

Chris saw genuine fear in her bloodshot eyes. "I know that seems suspicious to you, okay? But I've seen exactly that kind of thing happen out here at night. Poachers drive out here to spotlight deer. They'll shoot right into your yard, and the residents out here will shoot back. The poachers know there's only the one road in and out, so they're paranoid as hell."

Alex was watching him carefully.

"You're too tired to think straight," he said gently. "You told me yourself that we have a margin of safety before anybody tries anything. Remember? The first day we met."

"That was before William Braid and his insulin coma."

"Alex, if you want me to, I can call the neighborhood watch captain. He's got a big John Deere that he can pull across the road and block all access in or out."

"Really?"

"Absolutely." Chris looked at his watch. "And if it weren't so late, he'd love to do it for us."

She looked as if she wanted Chris to make the call, but she said, "I admit, I didn't see the vehicle that second time. I don't know if it was a van."

"You said you weren't even sure about the first vehicle you passed."

"I know that was a van. I just wasn't sure about the color."

He reached out and squeezed her knee. "You know what I think?"

"What?"

"I think that even if some guy drove here to kill me, once he saw you parked across the street, he'd realize the game was up."

Alex didn't look convinced.

"I mean, he has to make it look like an accident, right? That's the deal, according to your theory. Not even an accident, but a disease. There's no way he can pull that off now."

She was shaking her head. "Three of the victims didn't die of cancer, remember? One heart attack, one stroke, one pulmonary embolism."

"You don't know those were murders. And they don't fit in with the other deaths, do they?"

"I think those deaths show that if the fee is high enough, the murderer will take the risk of killing someone quickly."

Her stubbornness was starting to wear on him. "Even if you're right, you contacting me-not to mention hanging around and ambushing me for the past three days-has wiped out any chance of someone murdering me for money and making it look like an accident. That's just not an option anymore. You told me yourself that someone trying to kill me would be watching me, tapping my phones, that kind of thing. If they have any sense at all, they're lying low and hoping you'll get tired of chasing them."

"I won't."

He smiled. "I know that. But tonight, you can take a break. A short rest. I'm going to fix up a bed for you in the main house, and-"

"No. I don't want to upset Ben."

"Ben will never see you. No argument, Alex. You're going to take an Ativan and crash for the next twelve hours. All this is going to look different after you wake up, I promise."

He could tell she was considering it.

"If I do that," she said, "I want you and Ben in the main house, too. So I can-"

"What?" He laughed. "Watch us? Forget it. You're going to sleep."

Alex opened her mouth to keep arguing, but her cell phone preempted her. She checked the LCD, and her face darkened.