“Then one half is senescence—”
“And the other half is an entropy field,” said Dulcinea simply.
Gideon followed Harrow’s gaze over the long, dully gleaming field of corrugated metal, and the plinth shining at the end like a beacon. She saw Harrow suck in and bite the inside of one cheek, always a sign of furious thinking, flexing her fingers all the while as though still worried about their integrity. She took an old, ivory-coloured knuckle from her pocket, and she passed it to Gideon. “Throw,” she commanded.
Gideon obligingly threw. It was a good toss—the knuckle hit the field high and travelled for about half a metre before fragmenting into a rain of grey particles. Harrow’s gaze fixed on the crumbling shards: more tiny spikes and spurs of bone burst out of them and shrivelled, stillborn—another burst as Harrow curled her fist into a ball—then nothing. There was no more bone left.

Gideon the Ninth - Act Three, Chapter Twenty