Last week,' she says, 'I was in the city, on my way to visit a wretched family I'd visited before, to plead with them once more to listen to the words of their Saviour. I was tired, I felt disinclined to walk far. Before I knew what I was doing, I was in the Underground Railway, pulled by an engine, mesmerised by the alternation of darkness and light, speeding through the earth at the cost of a sixpence. I spoke to no one; I might as well have been a ghost. I enjoyed it so much, I missed my stop, and never saw the family.' 'I... I confess I don't quite divine the point you are making.' 'This is how our world will end, Henry! We're foolish to imagine the Last Days will be ushered in by a giant Antichrist brandishing a bloody battle-axe. The Antichrist is our own desires, Henry. With my sixpence, I absolved myself utterly of responsibility - for the welfare of the poor filthy wretches who slaved to dig out that railway, for the grotesque sum of money spent on it, for the violation of the earth that ought to be solid beneath my feet. I sat in my carriage, admiring the dark tunnels flashing by me, not having the foggiest notion where I was, mindless of everything except my pleasure. I ceased to be, in any meaningful sense, God's creature.' 'You are being hard on yourself. A single ride in the Underground isn't going to hasten Armageddon.