He slowed the SUV and turned into a rutted lane that wound through the trees and dead-ended in a small clearing. A high steel security fence protected a run-down house and a yard filled with large stone pots. As far as he could tell, the only things growing in the planters were weeds.

He brought the vehicle to a halt and studied the scene. “You’re sure this is the right place?”

“I told you, Thaddeus is a bit eccentric.” Abby unfastened her seat belt and opened the door.

“Doesn’t look like he’s much of a gardener.”

“The pots and the weeds are all that remain of an experimental garden he planted years ago. He was trying to grow some exotic herbs that he found for sale online. Supposedly, the herbs had psychical properties. But they didn’t do well in this climate.”

Sam got out of the car. “How do we announce ourselves?”

“There’s an intercom at the gate.” Abby started forward. “I’ll let Thaddeus know we’re here. He’ll disarm the security system and let us in.” She opened the rear door of the SUV. “Come on, Newton. We’re going to visit Thaddeus.”

Newton bounded down, but he did not look like his usual enthusiastic self. Instead, he flattened his ears and moved close to Abby.

“Maybe he’s not a country dog at heart, after all,” Sam said.

“I don’t understand it,” Abby said. “Usually he loves to come up here.”

Small shards of ice touched the back of Sam’s neck. He jacked his senses a little and looked around, trying to decide what it was about the scene that was bothering him.

“Wait,” he said, making it an order.

Abby stopped and looked back at him. “What is it?”

“Looks like the gate is unlocked.”

“That’s impossible. Thaddeus always keeps the gate locked.” She took a closer look. “Good grief, you’re right. It’s not like Thaddeus to get sloppy with his security system. He’s totally paranoid, and he’s got reason to be. He deals with some very dangerous collectors.”

Sam went back to the SUV, opened the cargo-bay door and unzipped his duffel bag. He took out the small pistol, shut the door and went back to the gate.

“That’s a gun,” Abby said. She sounded oddly shocked.

“Good observation.”

“But I thought you used that crystal gadget for self-defense.”

“Sometimes a gun works better. It gets people’s attention faster.”

He gave the gate a cautious shove. It swung open easily enough. He walked into the yard. Abby followed quickly. Newton trailed behind. He whined softly.

“Something is wrong,” Abby said.

“Yes,” Sam said. “But I think the trouble has already come and gone.”

“You can tell things like that?”

“I’ve got pretty good intuition when it comes to this kind of stuff.” He glanced at Newton. “So does your dog.”

“Maybe Thaddeus fell ill or took a fall,” Abby said anxiously. “If he managed to call an ambulance or a neighbor, that would explain why he unlocked the security system.”

“Maybe.” But he knew before he went up the three concrete steps that whatever he found inside the little house was going to be bad.

The front door was ajar. He pushed it wider.

Abby eyed the open door. “This isn’t good.”

“No,” Sam said. “It isn’t.”

Sam took another look at Newton. The dog’s ears were flat, and his tail was down. He stayed close to Abby, but he did not have the go–­for-the-throat vibe he’d had earlier, when Abby had confronted Dawson.

Sam moved across the threshold. An all-too-familiar miasma iced his senses. He knew that Abby felt it, too. But, then, most people, psychic or otherwise, could sense death when it was close by.

“Dear heaven,” she whispered. “Not Thaddeus, please.”

Sam went along the small front hall. The house felt empty and filled with the silence of the dead. There was no other sensation like it. He heard Abby and Newton behind him.

The place looked like the home of a hoarder, but as far as he could tell, the only things Thaddeus Webber had ever hoarded were books. There were thousands of them on the floor–to–ceiling shelves. Hundreds more were stacked on the floor.

“It’s hot in here,” he observed. “­Psi-hot.”

“Most of the books in this house have a paranormal provenance,” Abby said. “Get enough hot books together, and you can feel it. If you think it’s warm up here, you should see the vault.”

“Where is it?”

“Downstairs in the basement. That’s where Thaddeus keeps his most valuable books.”

Sam turned the corner at the end of a row of shelving and stopped at the sight of the crumpled form sprawled on the floor.

“Thaddeus,” Abby said.

She said the name with grim resignation. She had known this was coming, Sam thought.

She slipped past him and hurried to the end of the aisle to crouch beside the body. Newton hung back, whining a little.

Abby touched the dead man’s throat. Sam knew there would be no pulse. He was sure that Abby knew that, too.

She drew her fingertips away and looked up at him. There was a forlorn sadness in her eyes that he knew he would not soon forget. He walked to the body and hunkered down beside it.

“I’m sorry,” he said quietly.

“There’s no blood,” Abby said. “I don’t see any wounds. Perhaps he died of a heart attack or a stroke. He was eighty-six, after all.”

“The authorities will conclude that the death was due to natural causes, but you know as well as I do that is probably not what happened here.”

“He was just an old man who loved his books,” she said.

An old man who loved his books so much that he was willing to do business with some very dangerous people, Sam thought. But he did not say it.

He turned Webber faceup. The body was surprisingly heavy. They always are, he reflected. There was a reason the term dead weight had been coined a long time ago.

Scraggly gray hair and a wildly overgrown, unkempt beard framed sunken cheeks and a bulbous nose. Webber was dressed in a tattered robe and ancient pajamas.

“He heard an intruder during the night,” Sam said. “Came out of the bedroom to see what was going on.”

“Someone got past his security system.” Abby rose and looked around. “It would have taken a lot of digging to find this place. He did all of his business anonymously over the Internet.”

“As you pointed out, if you want to find someone badly enough, it’s usually possible. Even the most sophisticated computer security systems are vulnerable.”

“I know,” Abby said. “Thaddeus shelled out for a high-end system, but it’s not like he was a large corporation or the military.”

“Which, as we all know, get hacked, too. The thing that narrows our list of suspects in this situation is the cause of death.”

“What do you mean?”

“I’ve seen this kind of thing before, Abby. This was death by paranormal means. Not many people could kill this way. It almost always involves physical contact.”

“Are you certain?”

He got to his feet. “This is the kind of crime I investigate for that private contractor I told you about. No, I can’t be absolutely certain yet, but death by paranormal means is my working theory until proven otherwise. A heart attack would be way too much of a coincidence.”

Abby took a deep, shuddering breath. “Maybe someone used one of his encrypted books to do this, someone with my kind of talent.”

“It’s a possibility, but I doubt it.”

“Why?”

“For one thing, there just are not a lot of folks who can do what you do. For another, being able to short-circuit someone’s aura long enough to knock him unconscious is one thing. The ability to actually stop a man’s heart with psychic energy is something else. It would take a whole different level of talent.”

“Maybe not.” Abby rubbed her arms as if she was cold. “If the victim was old and frail and was having heart problems, a severe shock to the senses might be all it would take.”

“There is that. Let’s take a look at that vault you mentioned.”

“All right.”

She led the way to the small kitchen, Newton hanging at her heels, and opened what looked like a closet door. Sam saw a flight of stone steps that went down into darkness. Abby flipped a light switch, revealing a concrete chamber piled high with cartons, crates and shelves of books.

“I don’t see a vault or a safe,” Sam said.

“That’s because Thaddeus took care to make it as invisible as possible. The door to the vault is in the floor.”

She went down the steps ahead of him, wove a path through the crowded space and stopped at what looked like a nondescript section of the concrete floor. She shoved aside a heavy book cart and revealed a small computerized lock set into the floor. She crouched, entered a code and stepped back.

“Webber gave you the code?”

“I think I’m the only one he ever trusted,” Abby said.

A large square section of the floor rose on invisible hinges. A heavy wave of psi poured out of the lower basement, jangling Sam’s senses. At the top of the basement steps, Newton whined again.

“I see what you mean about the heat in the vault,” Sam said. “It would take at least some degree of talent just to push through that high-energy atmosphere.”

“Thaddeus kept all of his most valuable items down there.” Abby descended a few steps and flipped another switch. She looked around. “I don’t think the killer got this far. Nothing appears to be disturbed.”

“Whoever killed Webber was not interested in anything except the lab book.”

“Which Thaddeus did not have.” Abby turned off the lights and climbed back up the steps. “The bastard killed him for no reason.”