‘To talk to Luru Parz.’ And she left before they could react.

‘I am nearly two hundred years old,’ said Luru Parz. ‘I was born in the era of the Occupation. I grew up knowing nothing else. And I took the gift of immortality from the Qax. I have already lived to see the liberation of mankind.’

They were in a two-person flitter. Faya had briskly piloted them into a slow orbit around Port Sol; beneath them the landscape stretched to its close-crowding horizon. Here, in this cramped cabin, they were safely alone.

Port Sol was a Kuiper object: like a huge comet nucleus, circling the sun beyond the orbit of Pluto. The little ice moon was gouged by hundreds of artificial craters. Faya could see the remnants of domes, pylons and arches, spectacular microgravity architecture. But the pylons and graceful domes were collapsed, with bits of glass and metal jutting like snapped bones. Everything was smashed up. Much of this architecture was a relic of pre-Occupation days. The Qax had never come here; during the Occupation the moon had been a refuge. It had been humans, the forces of the young Coalition, who had done all this damage in their ideological enthusiasm. Now, even after decades of reoccupation and restoration, most of the old buildings were closed, darkened, and thin frost coated their surfaces.

Luru said, ‘Do you know what I see, when I look down at this landscape? I see layers of history. The great engineer Michael Poole himself founded this place. He built a great system of wormholes, rapid-transit pathways from the worlds of the inner system. And having united Sol system, here, at the system’s outermost terminus, Poole’s disciples used great mountains of ice to fuel interstellar vessels. It was the start of mankind’s First Expansion. But then humans acquired a hyperdrive.’ She smiled wistfully. ‘Economic logic. The hyper-ships could fly right out of the crowded heart of Sol system, straight to the stars. Nobody needed Poole’s huge wormhole tunnels, or his mighty ice mine. And then the Qax came, and then the Coalition.’

‘But now Port Sol has revived.’

‘Yes. Because now we are building a new generation of starships, great living ships thirsty for Port Sol’s water. Layers of history.’

‘Luru, why should I be tainted in this way? Why my family?’

‘It’s common on Port Sol,’ Luru said. ‘Relatively. Even during the Occupation, and again under the Coalition’s persecution, the undying fled to the outer system - to the gas giants’ moons, to here, a forgotten backwater. Yes, this was a hideout for undying.’

‘I know. That’s why the Coalition were so brutal.’