‘Is there anyone else alive here?’ ‘No,’ whispered the boy. ‘Just me.’ ‘Is there anything you can’t leave behind?’ The boy was silent for a moment. A fly landed on his mother’s cheek and crawled across her nose. He wanted to brush it off, but he didn’t have the strength to lift his hand. ‘I can’t take a body,’ said Professor Lovell. ‘Not where we’re going.’