The Lion, The Witch And The Wardrobe / The Magician's Nephew by C. S. Lewis

Two linked fantasies follow children who stumble into a hidden world of talking animals and deep, ancient magic: in one tale two youngsters travel between worlds with enchanted rings and witness the land’s creation and the rise of a jealous queen whose evil will later threaten the realm; in the other four siblings enter the same land through a wardrobe and join a majestic lion whose self-sacrifice and victory end an enforced winter, defeat the witch, and restore hope and rightful rule.

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