This was the heart of Edinburgh New Town, lined with banks and shops and churches. Today, the day after the first Moonseed surge, twelve hours after the evacuation was ordered, the street was empty save for a couple of abandoned cars, an old newspaper blowing down the centre of the road. The emptiness was eerie in the middle of the day, the sun bright overhead, the light splashing from the buildings.

The smoke clouds were still rising from Abbeyhill.

There was no reply to her knocking. The evacuation of the city was all but complete, as far as anybody could tell; this was the final sweep.

The evacuation, though fast, had been a mess. She’d been surprised how difficult it had turned out to be to get people to move.

There had been broadcast warnings in the media — national and local TV and radio, even the Internet — with details of evacuation procedures, assembly points, Rest Centres. But the messages had been confusing, and mixed up with a lot of lurid misreporting. People were fragmented; there was no one channel that everybody listened to, no one time when everyone tuned in. And besides, nobody sensible believed what they heard on the radio anyhow.

So the police had resorted to more old-fashioned methods. There was a mail-shot campaign, aimed at households and businesses affected, thousands of them. That had worked, even if it hadn’t made people move immediately; Morag had seen many people clutching the flyers, carrying the information with them.

And at last, in the small hours, there had come the blunt approach: police cars with loudhailers patrolling the streets, one-way road blocks, coppers going from door to door telling you to get packed up and get out now. It had been that, it seemed, the sight of police on the doorstep giving direct commands, that finally forced compliance.

That, and the sight of the fires on the eastern horizon, the mess around Arthur’s Seat that was visible from most of the city: this is real, and it’s coming this way.

Morag’s briefing, from the local authority emergency planners, had been rudimentary, but effective.

For instance, how to tackle looting. Looting was rare — bad guys flee too if the danger is real — but the fear of looting, whipped up by inaccurate reporting, was something you had to deal with. People wouldn’t have their houses marked as empty, for instance, for fear of making them targets. So you had to reassure. It was one reason she was still here now, a bobby on the beat in the empty heart of Edinburgh: to reassure the thousands who had gone.

The most heart-rending moments had been dealing with people who couldn’t move themselves. The elderly. The disabled. A team of interpreters had combed the Asian communities, to make sure the message got home there. Once Morag had found a house occupied by a deaf couple; she’d had to call out a sign language interpreter.