She incised skin, gutted the thorax and abdomen. Removed dripping organs and placed them on the cutting board to be sectioned. Little by little, Gloria Leder revealed her secrets: a fatty liver, the telltale sign of a few too many rums and Cokes. A uterus knobby with fibroids.

And finally, when they opened the cranium, the reason for her death. Maura saw it as she lifted the brain in her gloved hands. “Subarachnoid hemorrhage,” she said, and glanced up at Buchanan. He was looking far paler than when he had first walked into the room. “This woman probably had a berry aneurysm-a weak spot in one of the arteries at the base of the brain. Hypertension would have exacerbated it.”

Buchanan swallowed, his gaze focused on the flap of loose skin that had been Gloria Leder’s scalp, now peeled forward over the face. That’s the part that usually horrified them, the point at which so many of them winced or turned away-when the face collapses like a tired rubber mask.

“So… you’re saying it’s a natural death?” he asked softly.

“Correct. There’s nothing more you need to see here.”

The young man was already stripping off his gown as he retreated from the table. “I think I need some fresh air…”

So do I, thought Maura. It’s a summer night, my garden needs watering, and I have not been outside all day.

But an hour later she was still in the building, sitting at her desk reviewing lab slips and dictated reports. Though she had changed out of her scrub suit, the smell of the morgue still seemed to cling to her, a scent that no amount of soap and water could eradicate, because the memory itself was what lingered. She picked up the Dictaphone and began to record her report on Gloria Leder.

“Fifty-year-old white woman found slumped in a patio chair near her apartment swimming pool. She is a well-developed, well-nourished woman with no visible trauma. External exam reveals an old surgical scar on her abdomen, probably from an appendectomy. There is a small tattoo of a butterfly on her…” She paused, picturing the tattoo. Was it on the left or the right hip? God, I’m so tired, she thought. I can’t remember. What a trivial detail. It made no difference to her conclusions, but she hated being inaccurate.

She rose from her chair and walked the deserted hallway to the stairwell, where her footfalls echoed on concrete steps. Pushing into the lab, she turned on the lights and saw that Yoshima had left the room in pristine condition as usual, the tables wiped down and gleaming, the floors mopped clean. She crossed to the cold room and pulled open the heavy locker door. Wisps of cold mist curled out. She took in a reflexive breath of air, as though about to plunge into foul water, and stepped into the locker.

Eight gurneys were occupied; most were awaiting pickup by funeral homes. Moving down the row, she checked the tags until she found Gloria Leder’s. She unzipped the bag, slipped her hands under the corpse’s buttocks and rolled her sideways just far enough to catch a glimpse of the tattoo.

It was on the left hip.

She closed the bag again and was just about to swing the door shut when she froze. Turning, she stared into the cold room.

Did I just hear something?

The fan came on, blowing icy air from the vents. Yes, that’s all it was, she thought. The fan. Or the refrigerator compressor. Or water cycling in the pipes. It was time to go home. She was so tired, she was starting to imagine things.

Again she turned to leave.

Again she froze. Turning, she stared at the row of body bags. Her heart was thumping so hard now, all she could hear was the beat of her own pulse.

Something moved in here. I’m sure of it.

She unzipped the first bag and stared down at a man whose chest had been sutured closed. Already autopsied, she thought. Definitely dead.

Which one? Which one made the noise?

She yanked open the next bag, and confronted a bruised face, a shattered skull. Dead.

With shaking hands she unzipped the third bag. The plastic parted, and she saw the face of a pale young woman with black hair and cyanotic lips. Opening the bag all the way, she exposed a wet blouse, the fabric clinging to white flesh, the skin glistening with chilly droplets of water. She peeled open the blouse and saw full breasts, a slim waist. The torso was still intact, not yet incised by the pathologist’s knife. The fingers and toes were purple, the arms marbled with blue.

She pressed her fingers to the woman’s neck and felt icy skin. Bending close to the lips, she waited for the whisper of a breath, the faintest puff of air against her cheek.

The corpse opened its eyes.

Maura gasped and lurched backward. She collided with the gurney behind her, and almost fell as the wheels rolled away. She scrambled back to her feet and saw that the woman’s eyes were still open, but unfocused. Blue-tinged lips formed soundless words.

Get her out of the refrigerator! Get her warm!

Maura shoved the gurney toward the door but it didn’t budge; in her panic she’d forgotten to unlock the wheels. She stamped down on the release lever and pushed again. This time it rolled, rattling out of the cold room into the warmer loading area.

The woman’s eyes had drifted shut again. Leaning close, Maura could feel no air moving past the lips. Oh Jesus. I can’t lose you now.

She knew nothing about this stranger-not her name, nor her medical history. This woman could be teeming with viruses, yet she sealed her mouth over the woman’s, and almost gagged at the taste of chilled flesh. She delivered three deep breaths, and pressed her fingers to the neck to check for a carotid pulse.

Am I imagining it? Is that my own pulse I feel, throbbing in my fingers?

She grabbed the wall phone and dialed 911.

“Emergency operator.”

“This is Dr. Isles in the medical examiner’s office. I need an ambulance. There’s a woman here, in respiratory arrest-”

“Excuse me, did you say the medical examiner’s office?”

“Yes! I’m at the rear of the building, just inside the loading bay. We’re on Albany Street, right across from the medical center!”

“I’m dispatching an ambulance now.”

Maura hung up. Once again, she quelled her disgust as she pressed her lips to the woman’s. Three more quick breaths, then her fingers were back on the carotid.

A pulse. There was definitely a pulse!

Suddenly she heard a wheeze, a cough. The woman was moving air now, mucus rattling in her throat.

Stay with me. Breathe, lady. Breathe!

A loud whoop announced the arrival of the ambulance. She shoved open the rear doors and stood squinting against flashing lights as the vehicle backed up to the dock. Two EMTs jumped out, hauling their kits.

“She’s in here!” Maura called.

“Still in respiratory arrest?”

“No, she’s breathing now. And I can feel a pulse.”

The two men trotted into the building and halted, staring at the woman on the gurney. “Jesus,” one of them murmured. “Is that a body bag?”

“I found her in the cold room,” said Maura. “By now, she’s probably hypothermic.”

“Oh, man. If this isn’t your worst nightmare.”

Out came the oxygen mask and IV lines. They slapped on EKG leads. On the monitor, a slow sinus rhythm blipped like a lazy cartoonist’s pen. The woman had a heartbeat and she was breathing, yet she still looked dead.

Looping a tourniquet around one flaccid arm, the EMT asked: “What’s her story? How did she get here?”

“I don’t know anything about her,” said Maura. “I came down to check on another body in the cold room and I heard this one moving.”

“Does this, uh, happen very often here?”

“This is a first time for me.” And she hoped to God it was the last.

“How long has she been in your refrigerator?”

Maura glanced at the hanging clipboard, where the day’s deliveries were recorded, and saw that a Jane Doe had arrived at the morgue around noon. Eight hours ago. Eight hours zipped in a shroud. What if she’d ended up on my table? What if I had sliced into her chest? Rummaging through the receiving in-basket, she found the envelope containing the woman’s paperwork. “Weymouth Fire and Rescue brought her in,” she said. “An apparent drowning…”