Cliff Nielsen Libri

Four English school children enter the magic land of Narnia through the back of a wardrobe and assist Aslan, the golden lion, in defeating the White Witch who has cursed the land with eternal winter.

When Digory and Polly try to return the wicked witch Jadis to her own world, the magic gets mixed up and they all land in Narnia where they witness Aslan blessing the animals with human speech.