“I’ve got no idea,” I puzzle. “Absolutely none.”

“Some type of postmortem artifact?”

“Unlike any I’ve ever seen before.” I excise a small section of the hard brown skin for histology. “It’s like cutting through stiff leather. I can’t imagine what might cause that, swaths of skin as much as four by three inches.”

“Like freezer burn, perhaps?”

“No. She’d have it all over if she was in a freezer and it caused that.”

“But what about if certain parts of the body came in contact with metal inside a freezer?” he suggests.

“Then the skin would stick.”

I insert the tip of the scalpel blade into leathery flesh just below the left sternum and incise down and to the right, and then do the same on the left and cut straight down to the navel, detouring around it to the pubic bone. It’s like making a Y-incision in wet slippery leather, and I reflect back tissue, cutting through ribs, removing the breastplate of them. I make an incision beneath the jaw to remove the neck organs and tongue.

“Her hyoid’s intact.” I make notes on a body diagram as I work, the odor of decomposition overpowering now. “No sign of injury to the strap muscles, to soft tissue. No airway obstruction or aroma of chemical asphyxia, such as due to cyanide. No injury to the tongue.”

Luke peels back the scalp, and the air vibrates with the loud whining and grinding of the oscillating saw, and bone dust is suspended in the bright white light. I open the major blood vessels, the inferior vena cava, the aorta, finding what I expect, that they are empty, with dry diffuse hemolytic staining. I see no evidence of blockage or injury or disease, just a moderate amount of calcification, certainly not enough to kill her.

“The brain’s too soft to section,” Luke reports. “But I’m not seeing anything to suggest cerebral injury. Dura’s intact and free of staining.” He writes it down.

Her organs are decomposed. Her lungs are collapsed, reddish-purple and very soft, the airways devoid of water, froth, sand, or foreign material, the gallbladder dry and wrinkled, with no residual bile. With each minute we work it becomes abundantly clear that this is an autopsy of exclusion, of ruling out possible causes of death and leaving little doubt that she either asphyxiated or was poisoned. But it will be a while—days, at least—before we have a complete ethanol and drug screen of liver tissue.

“No petechiae I can find.” Luke opens each eye. “No irregular areas of hemorrhage to the sclera or the conjunctiva. Of course, that doesn’t rule out asphyxia by smothering or strangulation,” he adds, and he’s right.