'Suppose I'm the only person left in the world who hasn't vanished.

Then everything in the world would belong to me.

Then I could have everything that's in all the toy shops.' And his mind for a moment dwelt fondly on this beautiful idea.
Then he went on.

'But suppose I vanished too?
Perhaps if I were to vanish I could see the other people who have.

I wonder how it's done.' He held his breath and tried hard to vanish.