C.S. Lewis's Narnia is a fictional world featured in his series of seven books, known as the Chronicles of Narnia. The stories are set in a magical land filled with talking animals, mythical creatures, and epic battles between good and evil. The first book, The Lion, the Witch and the Wardrobe, introduces readers to the Pevensie siblings, who discover Narnia through a wardrobe. Narnia is ruled by the great lion Aslan, who symbolizes goodness and justice. The series explores themes of bravery, sacrifice, and redemption, making it a beloved classic for readers of all ages. Each book presents unique adventures while contributing to the overarching narrative of Narnia's history.