The Magician's Nephew

It was like this. The tree which sprang from the Apple that Digory planted in the back garden, lived and grew into a fine tree. Growing in the soil of our world, far out of the sound of Aslan’s voice and far from the young air of Narnia, it did not bear apples that would revive a dying woman as Digory’s Mother had been revived, though it did bear apples more beautiful than any others in England, and they were extremely good for you, though not fully magical. But inside itself, in the very sap of it, the tree (so to speak) never forgot that other tree in Narnia to which it belonged. Sometimes it would move mysteriously when there was no wind blowing: I think that when this happened there were high winds in Narnia and the English tree quivered because, at that moment, the Narnia tree was rocking and swaying in a strong southwestern gale. However that might be, it was proved later that there was still magic in its wood. For when Digory was quite middle-aged (and he was a famous learned man, a Professor, and a great traveler by that time) and the Ketterleys’ old house belonged to him, there was a great storm all over the south of England which blew the tree down. He couldn’t bear to have it simply chopped up for firewood, so he had part of the timber made into a wardrobe, which he put in his big house in the country. And though he himself did not discover the magic properties of that wardrobe, someone else did. That was the beginning of all the comings and goings between Narnia and our world, which you can read of in other books.
When Digory and his people went to live in the big country house, they took Uncle Andrew to live with them; for Digory’s Father said, “We must try to keep the old fellow out of mischief, and it isn’t fair that poor Letty should have him always on her hands.” Uncle Andrew never tried any Magic again as long as he lived. He had learned his lesson, and in his old age he became a nicer and less selfish old man than he had ever been before. But he always liked to get visitors alone in the billiard-room and tell them stories about a mysterious lady, a foreign royalty, with whom he had driven about London. “A devilish temper she had,” he would say. “But she was a dem fine woman, sir, a dem fine woman.”