Patricia Cornwell - Trace

He is a strange man with pale eyes. The middle of his upper lip fades into a fine scar that reaches to his nose, a typical poor mending job that she has seen many times before in people who were born with cleft palates. Appearance aside, he is odd, and Scarpetta thought so years ago when she used to encounter him now and then in the labs. She never talked to him much back then, but occasionally she consulted him on certain cases. When she was chief, she was pleasant and made it a practice to show the respect she honestly felt for all of the lab workers, but she was never overly friendly. As she accompanies Else along the ma/e of white corridors and big glass windows that allow glimpses of the scientists at work in the labs, she is aware that the perception when she was here was that she was cold and intimidating. As chief she got respect but rarely affection. That was hard, extremely hard, but she lived with it because it went with the position. Now she doesn't have to live with it.

"How have you been doing, Junius?" she asks. "Understand you and Marino have been keeping the lights burning late at the FOP. I hope you aren't stressing yourself out too much about this recent trace evidence curiosity. If anyone can figure it out, you can."

Eise glances at her, a look of disbelief on his face. "Let's hope so," he says, flustered. "Well, I have to say, I know I didn't mix anything up. I don't care what anyone says. I damn well know I didn't."

"You're the last person who would mix something up," she says.

"Well, thank you. That means a lot coming from you." He lifts the swipe card from the lanyard around his neck and waves it past the sensor on the wall, and a lock clicks free. He opens the door. "It's not for me to say what anything means," he adds as they walk into the Trace Evidence section. "But I know I didn't mislabel a sample. I never have. Not once. At least not once when I didn't catch it right away and the courts were none the wiser."

"I understand."

"Do you remember Kit?" Eise asks, as if Kit is nearby, but she isn't in sight. "She's not here, is out sick, as a matter of fact. I tell you, half the world has the flu. But I know she wanted to say hello. She'll be sorry she missed you."

"Tell her I'm sorry too," Scarpetta says as they reach a long black countertop in Eise's work area.

"Tell you what," Marino says. "You got a quiet place with a phone?"

"You bet. The section chief's office around the corner. She's in court today. Help yourself, I know she wouldn't mind."

"I'll leave you guys to play in the mud," Marino says, walking off slowlv, slightly bowlegged like a cowboy who just came in from a long, rough ride.

Eise covers a section of countertop with clean white paper and Scarpetta opens her black bag and pulls out the soil samples. He pulls up another chair so she can sit next to him at the compound microscope and hands her a pair of examination gloves. The first stage of the many in this process is the simplest. Eise takes a tiny steel spatula, dips it into one of the bags, wipes a minute residue of red clay and sandy dirt on a clean slide, and places it on the stage of the microscope. Peering into the lenses, he adjusts the focus and slowly moves the slide around while Scarpetta looks on, unable to see anything except the swipe of damp reddish dirt on the glass. Removing the slide and setting it on a white paper towel, he uses the same method to prepare several more slides.

It is not until they are working on a second bag of the soil Scarpetta collected from the demolition site that Eise finds something.

"If I wasn't seeing this, I wouldn't believe it," he says, looking up from the binocular eyepiece. "Help yourself." He rolls back his chair, giving her room.

She moves closer to the microscope and looks through the lenses at a microscopic landfill of sand and other minerals, fragments of plant and insect pieces, and parts and bits of tobacco-all typical for a dirty parking lot-and she sees several flecks of metal that are partially a dull silver. This is not typical. She looks for a needle-pointed tool and finds several within reach. She carefully manipulates the metallic chips, isolating them, and sees that there are exactly three of them on this slide, all slightly bigger than the largest grain of silica or rock or other debris. Two are red and one is white. Moving the tungsten tip around a little more, she unearths one more find that captivates her interest. This one she recognizes quickly, but she takes her tune saying so. She warns to be sure.

It is about the size of the smallest paint chip and grayish-yellow and a peculiar shape that is neither mineral nor man-made. In fact, the particle looks like a prehistoric bird with a hammer-shaped head, an eye, a narrow neck, and a bulbous body.

"The flat plates of the lamellae. They look like concentric circles and are the layers of bone like the rings of a tree," she says, moving the particle a little. "And the grooves and channels of the canaliculi. That's the holes we're seeing, the haversian canals or canaliculi, where tiny blood vessels run through. You put this under the PolScope and you should see an undulating, wavy fanlike extension. My guess is when you get around to the XRD it's going to come up as calcium phosphate. Bone dust, in other words. I can't say I'm surprised, considering the context. That old building certainly would have had plenty of bone dust in it."

"I'll be darned," Eise says happily. "I've been making myself crazy over it. The same damn thing I found in the Sick Girl case, the Paulsson case, if we're on the same sheet of music. Mind if I look?"

She rolls back her chair, relieved but just as perplexed as she was before. Paint chips and bone dust might make sense in the tractor driver's case, but not in Gilly Paulsson's death. How can it be that the same type of microscopic trace evidence was recovered from inside her mouth?

"Same damn stuff," Eise says with certainty. "Let me get Sick Girl's slides and show you. You won't believe it." He picks up a thick envelope from a pile on his desk and peels tape off the flap and pulls out a cardboard file of slides. "Been keeping her stuff handy because I've looked at it so many times, believe you me." He places a slide on the stage. "Red, white, and blue paint particles, some adhering to metal chips, some not."

He moves the slide around and gets it into focus. "Paint's single-layer, at least an epoxy enamel, and it may have been modified. Meaning, whatever the object is, it might have started out white and had additional paint added, specifically the red, white, and blue added. Take a look."

Eise has painstakingly removed all particles from whatever was sub niined to him in the Paulsson ca.se, and only red, while, and blue paint chips are on the slide. They look big and bright, like a child's building blocks but irregularly shaped. Some of them adhere to dull silver metal and some seem to be just paint. The color and texture of the paint seems identical to what she just saw when she looked at her soil sample, and her glowing disbelief is well on its way to numbness. She can't think. Her brain is slowing down like a computer running out of memory. She simply can't find the logical connections.

"Here's the other particles you're calling bone dust." He pulls away the slide and replaces it with another one.

"And this was on her swabs?" She wants to make sure because it is hard to believe.

"No question about it. You're looking at it."

"The same damn dust."

"Think how much of that would be down there. More dust than there are stars in the universe if you started scraping up all the dirt down there," Eise says.

"A few of these particles look like they're old and the product of natural flaking or exfoliation as the periosteum begins to break down," Scarpetta says. "See how rounded and gradually thinned the edges are? I expect dust like that with skeletal remains, bones dug up or carried in from the woods and so on. Untraumatized bones will have untraumatized dust. But a few of these"-she isolates a particle of bone dust that is jagged and fractured and several shades lighter in color-"look pulverized to me."