The queue was moving, slowly; she realized that it was simply compressing, drivers inching forward in frustration, as if they could clear the obstacle by sheer psychic pressure.

We’re fragile, she thought. Everything is full, run to capacity, pared to the bone in the name of efficiency. The slightest disruption and everything freezes up.

The murky light of Venus was reflected from the roofs of the cars ahead of her, curved splashes of new light.

The wind changed, and blew in from the east, from Abbeyhill. There was a smell of burned meat. She could hear sirens. A helicopter flapped over her. She looked up. It was in camouflage green, Army or Navy.

Was this how it was starting? Was this the end of normality, of the routine of life? Would chaos and pain spread out from here, growing like the rock infection Henry had identified?

Her father would be able to cope with such conditions. That silent strength had always been an irritation to her, as she’d moved through adolescence and upwards. What use was a father who was a kind of heroic pillar? What could he do but intimidate her, make her aware of her own weakness?

But, she recognized, there were times when such strength was, simply, essential. Essential for survival.

The radio carried newsflashes. Incidents all over the eastern side of the city, fires and power outages and even collapsing buildings.

She shivered.

The receptionist at the lab didn’t know about Mike, and told her Henry hadn’t come in that morning. “But you might try the car park.”

The car park?

Jane suppressed her irritation, and went back outside.

In the car park, in one corner, she found a Portakabin, a squat cuboid, uncompromising yellow. A plastic packing case was being used as a step before the open door. A fat bundle of cables — power and data feeds, she supposed — snaked into the Portakabin from an open window in the main lab building.

She knocked on the frame of the open door. There was no reply. She stuck her head inside, shielding her eyes against the light. Henry was there, in the middle of clutter, with his back to her. He was sitting on a plastic chair, hunched over a workbench.

“Henry?”

He put down a soldering iron and turned around. “Hi.”