Albright stood up from behind his desk and walked forward to stand in front of Mitchell, his face red with anger. ‘Stop fucking around. There’s too much at stake, and the people who put me in charge of getting answers from you are starting to get very impatient.’

‘Whatever I tell you doesn’t matter a damn,’ Mitchell rasped. ‘You know why? Because, from my perspective, everything you’re trying to stop has already happened more than ten years in my past. The only reason you’re here, asking me these questions, is because the people you work for are too mentally limited to understand that one simple fact.’

Albright was breathing hard through his nose and, for a moment, Mitchell thoughhe might strike him. But, after a second or two, his interrogator took a step back, wiping his hand across his mouth.

‘You were in charge of interrogations at the Lunar Array, a few years back, weren’t you?’ asked Albright.

‘Sure. Right after the Galileo gate was sabotaged.’

Albright nodded. ‘And how did you know if detainees were telling the truth or not?’

‘We used infra-red cameras to pick up increases in subcutaneous blood flow, and voltage scanners that could remotely map brain wave functions in three dimensions and tell us whether or not they were lying. That the kind of thing you mean?’

‘You’ve already noticed we have the same devices here?’ Albright nodded towards the lenses suspended above Mitchell’s head. ‘You’ve also worked in the ASI long enough to know just what’s going to happen to you if you don’t start telling us the truth.’

Mitchell closed his eyes for a moment, remembering how, after waking in the motel, he’d managed to make his way through the Florida–Copernicus gate, only to be spotted by ASI agents on the lookout for him inside the Lunar Array. He’d found an airlock equipped with pressure suits, and made his escape across the silent lunar landscape, the great crescent shape of the Array rising to one side as he headed for the cryo labs situated further along the crater wall.

‘You want to know the truth?’ he said, opening his eyes again. ‘The learning pools remade me. They pulled me apart and put me together again, better than before.’

Albright frowned. ‘Learning pools?’

‘The pits me and Vogel got caught in.’

He remembered the sense of stark terror as the black, tar-like liquid had started to fill the pit all around them, and then that sense of floating in a timeless void. ‘When Jeff Cairns found me, I was still trying to understand what had happened to me. But one thing above all had changed: I wasn’t afraid of anything any more, not even death.’ He locked eyes with Albright. ‘Or anything you could possibly threaten me with.’