“The smell,” Ruth said. “Not the jasmine, that other smell, it’s pretty foul.”

“Yes, it is,” Dix said. “There’s something medicinal to it.”

“No knife,” Savich said, “but I suppose the murderer could have left it in here, tucked away somewhere. The forensic team will have a huge job ahead of them looking through this whole chamber.”

Ruth looked down at the young woman’s face, bathed in the light of all their head lamps. “She’s been posed. Look how her arms are crossed over her chest, her legs straightened out, her dress smoothed down.”

Dix slowly stood, stretched. “Must be some crazy loon here, guys. He kills her, poses her, entombs her here for all practical purposes. He couldn’t have known there was another exit from this chamber. At least he didn’t know until he found Ruth’s arch. It could be out of Poe.”

Sherlock was checking the young woman’s pockets, gently running her hands under the body. “I don’t see a purse. Two pockets, but they’re empty. No ID.”

Ruth looked toward the arched opening on the far side of the chamber. “Do you think she was killed in here?”

“I don’t know,” Dix said. “I don’t want to guess, either. I’m grateful you didn’t stumble over her when you were in here alone.”

She was shivering, so cold her body ached. She rubbed her hands up and down her arms. She couldn’t look away from that poor dead young woman. “I might have stumbled over her. It might have been what shoved me over the edge. I still don’t remember.”

Dix handed her the compass. “Hold it a moment, Ruth.”

She didn’t want to, but she took it and held it in her open palm. She heard Dillon’s voice. “That’s it, Ruth. Just hold it. You’ve had it for a long time. You’ve used it often. Do you remember what you were doing the last time you held it?”

She dropped the compass. “I was—terrified. Something was coming toward me, a slithering sound pulling itself across the cave floor. I ran, I had to get away from it. And I was screaming.”

Savich clutched her hand tightly. “That’s good, Ruth, that’s really good for now.” He nodded to Sherlock, who pulled Ruth against her. He watched Dix pick up the compass and slip it back into his jacket pocket.

Sherlock said, “Let’s head back outside. We need to get out of here to call for help.”

Savich said, “Dix, did you say your uncle-in-law is the director of Stanislaus, Dr. Gordon Holcombe?”

“Yes. If we can’t ID her real quick, he’ll be able to help us.”

AT THREE O’CLOCK in the afternoon, the body of Erin Bushnell, age twenty-two, a very talented violinist from Sioux City, Iowa, was zipped into a body bag in the back of the Loudoun County medical examiner’s van and on its way to the morgue in the basement of the Loudoun County hospital. As they watched the white van make its way slowly through the now-slushy snow Dix said, “The ME, Burt Himple, he’s good, Savich. I think he had some training at Quantico. After meeting you and Sherlock, he’ll be real careful not to screw up anything.”

Savich looked after the van. “I gave him Dr. Conrad’s name and number at Quantico if he wants to talk anything over.”

Dix said to Ruth, “I think you’re right. Erin Bushnell was probably lying dead in there when you first crawled into the chamber.” Dix paused, looked over at his deputy, Lee Hickey, who’d ticketed Erin Bushnell for speeding a couple of months ago and identified her immediately. “I asked her to go out with me but she told me she was seeing someone,” Lee had said and been violently ill.

Savich said, “The murderer probably had just placed her there, posed her to suit some insane directive in his mind, and heard you come in, Ruth. It sounds to me like you were drugged somehow, or gassed—that he somehow rendered you helpless.”

Chappy, who’d been sitting in the Range Rover, had come over to them when the forensic people had carried the body away in its zippered green bag. He stood watching the dozen or so people moving in and out of the cave entrance. “This has to be the strangest day of my life.”

“It sure ranks up there, all right,” Dix agreed.

“What I don’t understand is why Ruth is alive.”

Savich said, “If Dix hadn’t found Ruth in his woods, we would have searched the cave until there wasn’t a bat left who hadn’t had his wings stretched and examined for clues. Maybe the killer didn’t want to leave her here, knew since she was an FBI agent, there’d be a huge manhunt, centering right here at Winkel’s Cave.”