The Chronicles of Narnia she felt were upsetting to children. Poskanzer also noted Lewis presented his Christian message subtly enough as to avoid boring children with overt sermonizing. Examples include: Philip Pullman's fantasy series, "His Dark Materials", is seen as a response to "The Chronicles". Pullman is a self-described atheist who wholly rejects the spiritual themes that permeate "The Chronicles", yet his series nonetheless addresses many of the same issues and introduces some similar character types, including talking animals. In another parallel, the first books in each series – Pullman's "Northern Lights" and "The Lion, the Witch, and the Wardrobe" – both open with
The Chronicles of Narnia eventually swallowed up by the evil Calormene god Tash. The main setting of "The Chronicles of Narnia" is the world of Narnia constructed by Lewis and, in "The Magician's Nephew", the world containing the city of Charn. The Narnian and Charnian worlds are themselves posited as just two in a multiverse of countless worlds that includes our own universe, the main protagonists' world of origin. Passage between these worlds is possible, though rare, and may be accomplished by various means. Narnia itself is described as populated by a wide variety of creatures, most of which would be recognisable to those