The Chronicles of Narnia: The Lion, the Witch and the Wardrobe engravings on the wardrobe, when it is a simple one in the novel, and the Professor's surprise and intrigue when Peter and Susan mention Lucy's discovery in the wardrobe. When Lewis wrote the novel, it was the first of the series and the back-story later outlined by the subsequent books in the series did not exist. Additionally in the novel, the father of the Pevensie children is in London with their mother, but in the film, their father is fighting in the war as Lucy states to Mr. Tumnus when they first meet in Narnia. Weta Workshop head Richard Taylor
The Chronicles of Narnia book: Lewis's interest in the literary symbolism of medieval and Renaissance astrology is more overtly referenced in other works such as his study of medieval cosmology "The Discarded Image", and in his early poetry as well as in "Space Trilogy". Narnia scholar Paul F. Ford finds Ward's assertion that Lewis intended "The Chronicles" to be an embodiment of medieval astrology implausible, though Ford addresses an earlier (2003) version of Ward's thesis (also called "Planet Narnia", published in the "Times Literary Supplement"). Ford argues that Lewis did not start with a coherent plan for the books, but Ward's book answers this