Like VICAP, the Combined DNA Index System is a database maintained by the FBI. CODIS stores DNA profiles and uses two indexes to generate investigative leads.

The convicted offender index contains profiles of individuals convicted of crimes ranging from misdemeanors to sexual assault and murder. The forensic index contains profiles obtained from crime scene evidence, such as semen, saliva, or blood. When a detective or analyst enters an unknown profile, the CODIS software electronically searches both indexes for a potential match.

A match within the forensic index links crimes to one another, possibly identifying serial offenders. Based on a “forensic hit,” police in multiple jurisdictions can coordinate their investigations and share leads. A match between the forensic index and the convicted offender index provides investigators with an “offender hit.” A suspect. A name.

Anique Pomerleau.

“She’s not American.” Lame, but that’s what I said. What I meant was, how did Rodas get a match to a Canadian citizen? Our neighbors above the forty-ninth use the CODIS software but maintain their own national repository of DNA data.

“We came up blank in the U.S., so I decided to send the profile north. It’s not uncommon. Hardwick is less than an hour’s drive from the border.” Rodas pointed at the report I was holding. “That’s from the Canadian National DNA Data Bank.”

I knew that. In the course of my work at the Laboratoire de sciences judiciaires et de médicine legale in Montreal, I’d seen dozens of these reports. The pseudoephedrine and oxymetazoline I’d taken for my cold were short-circuiting my ability to articulate clearly. “How did you make the connection to me?” I clarified.

“The hit was in Canada, so it seemed logical to start there. I have a buddy at the Royal Canadian Mounted Police. He ran the name and found an Anique Pomerleau who fit the identifiers. Pomerleau is wanted by the Sûreté du Québec on a warrant dating to 2004.”

“Hold on. You’re saying that five years after the Canadians are looking for this chick, she leaves DNA on a dead kid in Vermont?” Tinker, king of compassion.

“The lead detective still works there, but apparently, he went AWOL recently.” Rodas gave a wry smile. “I got the feeling that was a story in itself.”

I felt a soft pulsing in my wrist. Stared at the delicate blue vein worming under my skin.

“No one remembered much about the perp or the case. But a coroner hooked me up with a pathologist who’s been around forever. Pierre LaManche.

“LaManche told me Pomerleau was a suspect in the deaths of several young girls. Said her accomplice was a guy named Neal Wesley Catts. Back in ’04, Catts either shot himself or Pomerleau killed him. Then she vanished.

“I told LaManche about the DNA found on Nellie Gower’s hand and about the VICAP match to your unsolved here in Charlotte. He advised me to contact Dr. Brennan.”

Anique Pomerleau.

The monster.

The only one who ever got away.

I kept my face blank. My eyes focused on the vessel snaking my flesh.

“You’re thinking Pomerleau did both Gower and the Nance kid.” Tinker, again stating the obvious.

“I think it’s a possibility.”

“Where’s she been all this time?”

“We sent out a BOLO.” Be on the lookout. “So did the SQ, though I didn’t feel a lot of love there. Can’t really blame them. It’s been ten years. Pomerleau’s maybe dead, maybe using an alias, and the only pic they have dates to 1989.”

I remembered. It was the only photo we had. Taken when Pomerleau was around fifteen.

“So. After Montreal, Pomerleau goes to ground for three years, then resurfaces and grabs a kid in Vermont.” From his tone, I knew Slidell was rolling the theory past his own ears.

“Last I checked, North Carolina’s a few miles from the tundra,” Tinker said. “How’d Pomerleau end up here?” When no one responded, he pressed on. “DNA links this Pomerleau to the Gower kid. But what links Gower to Nance? I said it before, and I’ll say it again. It’s sad, but kids are murdered every day. What makes you so sure we’re looking at one doer?”

The pressure in my sinuses suddenly felt explosive. Discreetly, I pressed a hand to one cheek. My skin was fiery hot. Was the virus upping the ante? Or was it the shock of what I was hearing?

As I reached for a tissue to blow my nose, Rodas ticked off points, beginning with his right thumb. “Both victims were female. Both were eleven to fourteen years of age. Both vanished during daylight from a public road—a highway, a city street. Both were left on the surface in an unprotected setting—a quarry, a field. Both bodies were lying faceup, with arms and legs straight, hair carefully arranged.”

“Posed,” Barrow said.

“Definitely.”

Rodas shifted to his left hand. “Both victims were clothed. Both had remnants of tissue on their fingers. Neither showed evidence of trauma. Neither showed evidence of sexual assault.” He withdrew a plastic sleeve from his carton and put it on the table. Inside was a white-bordered five-by-seven color print.

Barrow dug a similar print from the tub and placed it beside Rodas’s. As one, we leaned forward to view them.

The photos were undoubtedly school portraits. The kind we all sat for as kids. The kind kids still take home every year. The backgrounds differed. A tree trunk versus rippled red velvet. But each subject looked straight at the camera with the same awkward smile.

“I got to admit,” Tinker admitted, “they are of a type.”

“Of a type?” Slidell pooched air through his lips. “They look like friggin’ clones.”

“Both victims were roughly the same height and weight,” Rodas said. “No bangs. No glasses. No braces, which I’d guess are fairly common in that age group.”

It was true. Both girls had fair skin, fine features, and long dark hair center-parted and drawn back from the face. Gower had hers tucked behind her ears.

I looked at Lizzie Nance. At the face I’d studied a thousand times. Noted the dusting of caramel freckles. The red plastic bow at the end of each braid. The hint of mischief in the wide green eyes.

And felt the same sorrow. The same frustration. But new emotions were stirring the mix.

Unbidden, images genied up in my mind. An emaciated body curled fetal on a makeshift bench. Yellow-orange flames dancing on a wall. Blood-spattered crystal casting slow-turning shadows across a dimly lit parlor.

My gaze drifted past Slidell toward the back of the room.

Though I couldn’t see the view from where I was seated, I knew the window looked out over the parking lot. And the buildings of uptown. And the interstate snaking through the power grids of the Northeast. And the far distant Canadian border. And a dead-end street beside an abandoned railroad yard. Rue de Sébastopol.

The sound of silence brought me back to the present.

“You need a break?” Barrow was studying me with an odd expression. They all were.

I nodded, rose quickly, and left the room.

As I hurried up the hall, more images popped. A dog collar circling a willowy neck. Dark refugee eyes, round and terrified in a morgue-white face.

I locked the lavatory door, crossed to the sink, and held my hands under the faucet. Watched and didn’t watch as water ran over them. A full minute.

Then I cupped my fingers and drank.

Finally, I straightened and looked in the mirror. A woman looked back, knuckles white as the porcelain she was clutching.

I studied the face. Not young, not old. Hair ash blond but showing gray feelers. Eyes emerald green. Revealing what? Grief? Rage? Congestion and fever?

“Pull yourself together.” The reflected lips mouthed the words. “Do your job. Nail the bitch.”

I shut off the tap. Yanked paper towels from the dispenser and dried my face. Blew my nose.

Returned to the CCU squad room.

“—just saying it’s unusual to find no sexual component.” Tinker sounded steamed.