“There is extensive thermal injury, with fourth- and third-degree burns over greater than ninety per cent of the body surface, with scattered second-degree burns. Portions of the scalp and virtually all of the scalp hair are charred away, with the exception of a small amount of singed, coarse, straight black hair averaging three centimetres in length on the left side of the head. The facial features are not discernible. The nose is absent, as is the right ear. The left ear is shrivelled and charred. The eyes are not recognisable. The teeth are partially charred, but are in excellent repair, with multiple amalgam fillings and porcelain crowns. The maxilla and mandible will be retained for future dental comparison. The skin and soft tissue of the right cheek are charred away and there is char fracturing of the right zygoma. The tongue is protruding slightly; the tip is charred, and there is a small amount of white froth about the mouth. No facial hair is identified.”

Lily’s protestations that she was no longer required had been ignored, and she stood shivering at the back of the autopsy room beside Li, hardly daring to watch as Margaret made her preliminary examination of the body. Margaret measured and weighed, describing her findings as she went for the benefit of an overhead microphone. The recording of the entire proceeding would later be transcribed for the autopsy report.

She and Professor Xie had gone off earlier to change, returning swathed in layers of clothing; green surgeon’s pyjamas covered by plastic aprons, in turn covered by long-sleeved cotton gowns. Both wore plastic shoe covers on their feet and shower caps on their heads. Wondering what had drawn her to such a macabre profession, Li had watched with involuntary fascination as Margaret pulled on a pair of gloves, slipping plastic sleeve covers over her freckled forearms to cover the gap between sleeve and glove. She had drawn a steel-mesh glove over her left, non-cutting, hand, and snapped on a second pair of latex gloves over the lot. The post-mortem mutilation of a human being was a messy business.

As both surgeons had pulled up their face masks and lowered goggles over their eyes, two assistants had wheeled in the charred body of Chao Heng on a gurney and transferred it to the autopsy table. Lily had let out a small gasp. His upper body was still frozen in the defensive attitude of the boxer, as if preparing to fight off any attempt to cut him open. The chill air of the room had been suffused immediately with a smell like overcooked steak on a grill, an insidious odour that crept into the soul via the too-sensitive medium of the olfactory nerves.