He was getting very tired, and he had been walking a long time, before he came to anything that was not silver pillars and velvet black under invisible roofs, and floor paved with dominoes laid very close together.
'Oh, I am glad!' he said at last, when he saw the pavement narrow to a single line of dominoes just like the path he had come in by. There was an arch too, like the arch by which he had come in. And then he perceived in a shock of miserable surprise that it was, in fact, the same arch and the same domino path. He had come back, after all that walking, to the point from which he had started. It was most mortifying. So silly! Philip sat down on the edge of the domino path to rest and think.
'Suppose I just walk out and don't believe in magic any more?' he said to himself. 'Helen says magic can only happen to people who believe in magic. So if I just walked out and didn't believe as hard as ever I could, I should be my own right size again, and Lucy would be back, and there wouldn't be any magic.'
He walked on and on and on.
'Yes, but,' said that voice that always would come and join in whenever Philip was talking to himself, 'suppose Lucy does believe it? Then it'll all go on for her, whatever you believe, and she won't be back. Besides, you know you've got to believe it, because it's true.'
'Oh, bother!' said Philip; 'I'm tired. I don't want to go on.'
'You shouldn't have deserted Lucy,' said the tiresome voice, 'then you wouldn't have had to go back to look for her.'
'But I can't find my way. How can I find my way?'