In this more popular chapter in the story of Narnia, four children find their way through a magic wardrobe into the land of Narnia, which has been cursed by the white witch so that it is always winter and never Christmas. 
 Because the novel is such a close allegory of Christianity, it's a bit hard to review the book and not the religion - and when there are flaws in the novel, it's hard to determine if these are problems with the author's writing or problems with his theology. For example, good characters are just good, bad characters are just bad, and there really doesn't seem to be any reason or complexity in their alignment. It's the Problem of Evil set in a fantasy universe. And Lewis, unfortunately, doesn't even try to address it - Jadis is evil for no reason other than that she was born to the wrong race (in her case, being a descendent of Lilith and of giants). 
 I also found the allegory rather too heavy-handed. This leaves a lot of the world-building and plot undeveloped because most of the world's details must be a reference to theology, and Lewis didn't seem interested in moving beyond that. So stuff happens, people do things, and it just doesn't make sense except as an allegory. 
 All that being said, the writing style is quite fantastic and I loved the narrative voice. It's conversational and has a great rhythm for reading aloud - perfect for a children's book.