‘So where can we go?’ I ask.

‘Well, so far I’ve gone to Peru, to Easter Island, to Stonehenge, the Gulf of Aden near Somalia – but I really don’t recommend that one for a lot of reasons – and I’ve ended up in the desert in New Mexico.’

‘New Mexico,’ I say immediately, turning to Crayton. ‘If we go there we could be across the country and with John in less than a day. We know we can move around easily once we are in the U.S.’

Crayton walks over to the wall, looking around at some markings on it. ‘Wait. You’re saying you can’t control where you go? That’s not as promising as I had hoped.’

‘No, but if we end up somewhere besides New Mexico – if that’s where we want to go – we just teleport again until we get there. It’s not so bad,’ Eight says.

‘And do you know if you can take all of us with you?’ I ask. ‘If it’s anything like my Legacy of invisibility, we may have a problem. I can only turn other people invisible if they’re holding my hands.’

‘I don’t know, to be honest. I’ve never tried to bring anyone else,’ Eight admits.

‘Maybe you can take two trips,’ Marina suggests.

‘These drawings are amazing,’ Crayton interrupts, motioning us over to the cave walls. ‘Maybe there are some clues for us here.’

He’s right. The orange walls are covered with hundreds of symbols, paintings and carvings, reaching as high as the very tip of the dome.

I walk over and my eyes are drawn to a faint green painting of a planet. Instantly, I know it’s Lorien, and a lump catches in my throat. Below it, scratched in blue, is a female figure standing over a male, and both are holding sleeping babies. Rays of interrupted white lines come off the bottom of Lorien, ending just above the four figures. Carved next to the female’s head, in a different drawing style, are three columns of alien symbols. ‘What the hell?’ I whisper, confused.

A few feet to my left is a simple black sketch of a triangular spaceship. There are intricate spirals and symbols on its wings, and a tiny, swirling constellation of stars on the blunt nose. Eight walks up next to me and points to the constellation. ‘Do you see? It’s the same pattern as the stones in here.’

I turn around to compare – he’s right. Immediately, I wish Katarina were here to see all this. I wonder if she even knew about it. I turn to Crayton, who is examining drawings on the ceiling. ‘Did you know about any of this?’ I ask.