There's nothing to be done about it now. No point in recriminations, no shortage of fingers pointing in any direction. Still, she's glad she paid the visit. Even grateful, in an odd way. It's a selfish gratitude, but it will have to do. Patricia Rowan takes whatever solace she can in the fact that the buck doesn't stop with her any more. It doesn't even stop with Lenie Clarke, Mermaid of the Apocalypse. Rowan starts down the pale blue corridor of Res-D, glancing one more time over her shoulder.

The buck stops back there.

Portrait of the Sadist as a Free Man

Portrait of the Sadist as a Free Man

The technical term was fold catastrophe. Seen on a graph it was a tsunami in cross-section, the smooth roof of an onrushing wave reaching forward, doubling back beneath the crest and plummeting in a smooth glassy arc to some new, low-energy equilibrium that left no stone standing on another.

Seen on the ground it was a lot messier: power grids failing; life-support and waste-management systems seizing up; thoroughfares choked with angry, frenzied mobs pushed one meal past revolution. The police in their exoskels had long since retreated from street level; pacification botflies swarmed overhead, scything through the mobs with gas and infrasound.

There was also a word for the leading edge of the wave, that chaotic inflection point where the trajectory reversed itself before crashing: breakpoint. Western N'AmPac had pulled through that hairpin turn sometime during the previous thirty-four hours; everything west of the Rockies was pretty much a writeoff. CSIRA had slammed down every kind of barrier to keep it contained; people, goods, electrons themselves had been frozen in transit. To all intents and purposes the world ended at the Cordillera. Only 'lawbreakers could reach through that barrier now, to do what they could.

It wouldn't be enough. Not this time.

Of course, the system had been degrading for decades. Centuries, even. Desjardins owed his very job to that vibrant synergism between entropy and human stupidity; without it, damage control wouldn't be the single largest industry on the planet. Eventually everything had been bound to fall apart, anyone with a pair of eyes and an IQ even slightly above room temperature knew that. But there'd been no ironclad reason why it had had to happen quite as quickly as it had. They could have bought another decade or two, a little more time for those who still had faith in human ingenuity to go on deluding themselves.

But the closer you got to breakpoint, the harder it was to suture the cracks back together. Even equilibria were unstable, so close to the precipice. Forget butterflies: with a planet teetering this close to the edge, the fluttering of an aphid's wings might be enough to push it over.

It was 2051, and it was Achilles Desjardins sworn duty to squash Lenie Clarke like an insect of whatever kind.