Suzi survived to be picked up by the army. Her barrister was the best available, paid for by sympathizers of the anti-PSP cause, of which there were plenty. She got a twenty-five-year sentence, because the New Conservative government wanted to demonstrate it was showing no favouritism. On appeal, held quietly and unpublicized by a co-operative press, it was reduced to five. She served eighteen months, fifteen in an open prison that allowed weekend leave.

The closed universe of the sewer was familiar enough now for any abnormality to register; Suzi had almost forgotten the limp reality which lay outside. And there was definitely something else in the pipe with her. A cool pulse of excitement slipped along the optical fibre as the cockroach hurried onwards.

In front of her the bloated hump which was blocking a quarter of the pipe glowed a rich crimson, flecked by weaker claret smears. It was a rat, gnawing at some fetid titbit clasped between its forepaws. Huge glass-smooth hemispherical eyes turned to look at Suzi, the nose twitched.

She remembered all those fantasy quest novels she used to read as a child, princess sorcerers and fell beasties. Grinning wryly, none of them had ever gone up against dragon-sized rodents.

Initiate Defence Mode.

A pair of flexible antennae deployed on either side of the cockroach's head, swinging forward, long black rods curved like callipers. The rat hadn't moved, staring seemingly in surprise at the intruder in its domain. Suzi halted twenty centimetres away, antennae quivering at the ready.

It came at her with a fast fluid grace, mouth widening to reveal serrated tombstone teeth, forepaw reaching out to pin her down, black talons extended. The descending paw brushed against the cockroach's erect antenna tips. Suzi's vision was wiped out in an explosion of sparkling white light as the electroplaque cells below the cockroach's carapace discharged through the antennae.