'Then it wasn't a dream last night,' said Philip.
'Of course it wasn't,' said Mr. Noah.
'Then where is Lucy?'
'In the city, of course. Where you left her.'
'But she can't be,' said Philip desperately. 'The city's all pulled down and gone for ever.'
'The city you built in this room is pulled down,' said Mr. Noah, 'but the city you went to wasn't in this room. Now I put it to you—how could it be?'
'But it was,' said Philip, 'or else how could I have got into it.'
'It's a little difficult, I own,' said Mr. Noah. 'But, you see, you built those cities in two worlds. It's pulled down in this world. But in the other world it's going on.'
'I don't understand,' said Philip.
'I thought you wouldn't,' said Mr. Noah; 'but it's true, for all that. Everything people make in that world goes on for ever.'