So Smith was his interrogator. Even as Hannah finished speaking, Saul also knew why he hadn’t died. A memory lurked just at the periphery of his mental perception, a ghostly hint of the person he had once been. He realized that to lose his mind was his greatest terror, and Smith, knowing this with the instinct of all sadists, had therefore chosen that way to destroy him. He also realized that he had done something to ensure that both his brain and his mind would prove difficult to totally destroy, perhaps something involving that retroviral and anti-ageing fix. Nevertheless, Smith had come very close to his objective: Saul still possessed a mind, but not the mind of the original Alan Saul.

‘Was I violent?’ he asked.

‘Never,’ she replied. ‘In fact, if you had been capable of real violence, I don’t think they would ever have caught you.’

So that was it. The first Alan Saul had not been sufficiently ruthless, but had ensured that his creation would be.

The British government had established the World War Two bunker in preparation for a Nazi invasion, perhaps to provide just one more safehouse amidst many for dissident forces or a government in hiding, but what remained of its history was unclear. It was Janus who found it for Saul, then carefully erased all reference to it from official computer records, but he needed to ensure that no local knowledge of it existed either. It lay amidst agricultural land, just fifty metres to one side of a road composed of carbocrete blocks along which only robotic harvesters ran. It was a location frequented by very few humans now.

To gain access to the croplands he had to assume yet another identity but, wanting to use the bolt-hole long-term, he did not lift that identity from a corpse. Janus created a new persona for him, and to acquire it he needed to visit an All Health clinic to have the necesssary ID implant injected into his arm, which struck him as even more risky than killing off another bureaucrat. All agricultural land now being private government property, only approved workers were allowed anywhere near it. Any intruder was at risk of being spattered by readerguns mounted on the harvesters or independently mobile and stalking through the crops like iron spiders – in fact, the precursors to modern spiderguns – or in danger of being attacked by razorbirds, with a similarly messy result. He’d already seen the decaying corpses of those who had tried to supplement their rations: their remains got ploughed into the soil after harvest, old bones shattered by the disking that broke up the clods of earth.