“Oh, children, children, why are you following me?”

“We couldn’t sleep,” said Lucy–and then felt sure that she need say no more and that Aslan knew all they had been thinking.

“Please, may we come with you–wherever you’re going?” said Susan.

“Well–” said Aslan, and seemed to be thinking. Then he said “I should be glad of company tonight. Yes, you may come, if you will promise to stop when I tell you, and after that leave me to go on alone.”

. . .

“Oh, children, children. Here you must stop. And whatever happens, do not let yourselves be seen. Farewell.”

And both girls cried bitterly (though they hardly knew why) and clung to the Lion and kissed his mane and his nose and his paws and his great, sad eyes. Then he turned from them and walked out onto the top of the hill.

– The Lion, the Witch, and the Wardrobe by C.S. Lewis