Eliza and Billy were married in due course. The kingdoms are now extremely happy. Both are governed by Billy, who is a very good King because he knows so much. Eliza got him to change the law about Queens knowing everything, because she wanted her husband to be cleverer than she was. But Billy didn't want to make laws to turn his Eliza stupid, so he just changed the law--only a little bit--so that the King knows everything a man ought to know, and the Queen knows everything that ought to be known by a woman. So that's all right. Exploring expeditions were fitted out to find the edge of the toffee. It was found to stand up in cliffs two hundred feet high, overhanging the real, live, salt-watery sea. The King had ships built at once to sail on the real sea and carry merchandise to other lands. And so Allexanassa and Plurimiregia grew richer and richer every day. The merchandise, of course, is toffee, and half the men in the kingdoms work in the great toffee-mines. All the toffee you buy in shops comes from there. And the reason why some of the cheaper kinds you buy are so gritty is, I need hardly say, because the toffee-miners will not remember, before they go down into the mines, to wipe their muddy boots on the doormats provided by Billy the King, with the Royal Arms in seven colours on the middle of each mat. THE PRINCESS AND THE CAT The day when everything began to happen to the Princess began just like all her ordinary days. The sun was shining, the birds were singing, and the Princess jumped out of bed and ran into the nursery to let the mice out of the traps in the nursery cupboard. The traps were set every night with a little bit of cheese in each, and every morning nurse found that not a single trap had caught a single mouse. This was because the Princess always let them go. No one knew this except the Princess and, of course, the mice themselves. And the mice never forgot it. Then came bath and breakfast, and then the Princess ran to the open window and threw out the crumbs to the birds that flew down fluttering and chirping into the marble terrace. Before lessons began she had an hour for playing in the garden. But she never began to play till she had been round to see if any rabbits or moles were caught in the traps the palace gardeners set. The gardeners were lazy, and seldom got to work before half-past eight, so she always had plenty of time for this. Then came lessons with dear old Professor Ouatidontnoisuntwuthnoing, and then more play, and dinner, and needlework, and play again. And now it was teatime. 'Eat up your bread-and-butter, your Highness,' said nurse, 'and then you shall have some nice plummy cake.' 'I don't feel plum-cakey at all to-day, somehow,' said the Princess. 'I feel just exactly as if something was going to happen.' 'Something's always happening,' said nurse.